Tower and quick-assembly cranes
Study mode
Question of 949
1. According to the regulation of the Council of Ministers regarding the types of technical devices subject to technical supervision, the following are subject to technical supervision regulations:
a) bulldozers, stackersb) construction and assembly scaffolding
c) self-propelled cranes, quick-assembly cranes
d) pile drivers, drilling machines2. According to the regulation of the Council of Ministers regarding the types of technical devices subject to technical supervision, the following are subject to technical supervision regulations:
a) lifts, cranes, hoists, winches and hoistsb) powered lift trucks with mechanical lifting drive, mobile platformsc) cable cranes, cabin conveyors and chairlifts
d) all answers are correct
3. In order for the validity period of the qualification certificate to be extended, it is necessary to meet the condition:
a) submission of the application no later than 3 months before the expiration date of the validity of this certificateb) performing activities in the scope specified in the qualification certificate for at least 3 years within the last 5 years of the certificate's validityc) passing the supplementary exam
d) answers a and b are correct
4. Operational ad hoc tests are performed, among others:
a) after each fault removal by the maintainer
b) after replacing the load cables
c) once a yeard) after an accident on the device5. Acceptance tests are conducted for technical devices:
a) within the deadlines in accordance with the provisions of the regulation on the technical supervision conditions
b) before issuing the first decision allowing for operation
c) after repairing the technical deviced) after each change of the operator6. Periodic inspections are carried out for technical devices under supervision:
a) limited
b) full
c) simplifiedd) all answers are correct7. Periodic inspections of a technical device are performed by:
a) a conservator with the appropriate qualification certificate
b) an inspector of the relevant technical supervision authority
c) a manufacturer service employeed) an operator8. UDT inspections for an overhead tower crane are performed:
a) every time after disassembly and reassembly at a given siteb) every 2 yearsc) every 1 year
d) answers a and c are correct
9. UDT inspections for a quick-assembly tower crane are performed:
a) every 2 years
b) every 1 year
c) after assembly at a given sited) all answers are incorrect10. Inspections of devices subject to technical supervision are carried out by Inspectors:
a) exclusively UDT
b) UDT, TDT, WDT
c) PIPd) all answers are incorrect11. The person directly responsible for the safe operation of the technical device is:
a) the operator of the device
b) the manufacturer of the devicec) the plant safety inspectord) the UDT inspector12. BIOZ is:
a) the abbreviated name of the load control system in some tower cranesb) the designation of the collision zone of crane operations
c) the safety and health protection plan that every crane operator should familiarize themselves with during site training before starting work
d) all answers are incorrect13. What is the BIOZ plan?
a) construction work planb) crane operation procedure
c) safety and health protection
d) all answers are correct14. Does and how does the crane operator confirm familiarization with the safe operation instruction of the crane in collision location conditions?
a) yes, verballyb) does not need to confirm anything, as this instruction is for the signalmanc) does not need to confirm anything, as they have the qualifications to operate
d) yes, in writing
15. Can the operator maneuver the load if they cannot see it?
a) yes, if it is only due to weather conditionsb) such a situation is not allowedc) it is possible provided that specific operating conditions agreed with the technical supervision authority are met
d) it is allowed if the operator is in contact with a designated construction worker who conveys established communication signals before starting work
16. Can the operator of the crane lift loads over an energized power line?
a) the operator lifts the load over the power line with special cautionb) the operator can lift the load over the power line at the request of the construction managerc) the operator can lift the load over the power line at the request of the construction manager and with the consent of the safety inspector
d) none of the answers is correct
17. Is it necessary to perform an operational ad-hoc inspection after replacing the hoisting rope?
a) yes
b) noc) the conservator decidesd) the inspector decides18. Is it necessary to perform a UDT inspection before allowing the device to operate after changing the length of the boom (inserting new elements)?
a) yes
b) no
c) it is not allowed to change the length of the boom once the crane is assembledd) the inspector decides19. Is it necessary to perform a UDT inspection after changing the work location of the crane?
a) tower crane - no, quick-assembly crane - nob) tower crane - yes, quick-assembly crane - yes
c) tower crane - yes, quick-assembly crane - no
d) tower crane - no, quick-assembly crane - yes20. Is an operational ad-hoc UDT inspection required after changing the assembly version of the crane, e.g., changing the length of the boom?
a) yes, alwaysb) no, neverc) yes, if we change the ballast settings
d) it may be conducted at the request of the operator
21. Is it necessary to perform UDT testing before allowing the machine to operate after changing the lifting height of the crane (caging the tower)?
a) yes
b) no
c) it is not allowed to change the lifting height of an already assembled craned) the inspector decides22. Do the qualification certificates for operating stationary cranes allow for the operation of tower cranes?
a) yes
b) no
c) there is no category such as stationary cranesd) answers b and c are correct23. Do the qualification certificates for operating tower cranes allow for the operation of quick-assembly cranes?
a) nob) answers c and d are correctc) only if the symbol "Ższ" is added to the qualification
d) yes
24. Do the qualification certificates for operating tower cranes allow for the operation of rail cranes?
a) nob) answers c and d are correctc) only if the symbol "Ższ" is added to the qualification
d) yes
25. Is the qualification certificate issued by the Transport Technical Supervision recognized by the Technical Supervision Office?
a) no
b) yes
c) only for means of transport such as forkliftsd) the inspector decides26. Can a crane be used to transport people?
a) yes, but only on the written order of the construction managerb) yes, but only if the lifting equipment is marked with CEc) only on the condition that the total weight of the lifted people and the used basket is three times less than the crane's lifting capacity at the given reach
d) none of the answers is correct
27. The decision issued by UDT:
a) is not subject to appealb) can be changed by the PIP inspector
c) is subject to the possibility of appeal by the operator
d) each answer is incorrect28. The decision allowing the operation of a tower crane is issued for a period of:
a) 30 days
b) 1 year
c) 2 years for brand new technical devicesd) the term is specified by the manufacturer in the operating instructions29. The decision allowing the operation of a technical device is issued by:
a) the inspector after performing a review with a positive result
b) the authority of the relevant technical supervision unit
c) the public administration authority authorized by the authority of the relevant technical supervision unitd) none of the answers is correct30. The decision allowing the operation of a technical device is issued by:
a) the inspector after performing a review with a positive resultb) the authority of the relevant technical supervision unit or the operator of the technical device authorized by the authority of the relevant technical supervision unitc) the authority of the relevant technical supervision unit or the public administration authority authorized by the authority of the relevant technical supervision unit
d) the authority of the relevant technical supervision unit
31. An individual who can take the qualification verification exam is:
a) submitted an application for qualification verificationb) is at least 18 years oldc) has no health contraindications for operating technical devices
d) all answers are correct
32. Unremovable connections include:
a) wedge connectionsb) spline connectionsc) pin connections
d) welded connections
33. Removable connections include:
a) soldered connectionsb) riveted connections
c) threaded connections
d) welded connections34. Additional ballast (counterweight):
a) increases the stabilizing moment
b) increases the overturning momentc) decreases the stabilizing momentd) has no effect on the stabilizing moment35. Anyone modifying a technical device without agreement with the relevant technical supervision authority:
a) is subject to a fine or restriction of freedom
b) is subject to a penalty ticketc) is not subject to punishmentd) all answers are incorrect36. Technical supervision is called:
a) actions specified by law aimed at ensuring the safe operation of technical devices and fuel vapor recovery devices, as well as actions aimed at ensuring public safety in these areas
b) institutions controlling the technical condition of devicesc) Office of Technical Supervisiond) UDT, WDT, TDT37. The following are not subject to technical supervision:
a) freight liftsb) stationary cranesc) mobile slow-moving platforms
d) excavators
38. Technical supervision applies to technical devices during:
a) repair and modernizationb) manufacturingc) operation
d) all answers are correct
39. Technical supervision is not performed by:
a) UDT inspectorb) crane operatorc) crane maintenance technician
d) all answers are incorrect
40. Technical supervision over technical devices is performed by:
a) Office of Technical Supervision and specialized technical supervision units
b) Office of Technical Supervision and organizations authorized by UDTc) Office of Technical Supervision and foreign technical supervision unitsd) all answers are correct41. The maintenance log can be kept:
a) only in paper form
b) in paper or electronic form
c) only in electronic formd) the maintenance log does not have to be kept42. The maintenance log should be kept:
a) only in paper form
b) in electronic or paper form
c) only in electronic formd) by the operator43. The maintenance log of a technical device is kept by:
a) UDT inspector in the device's inspection bookb) authorized operatorc) designated employee of the operator
d) maintenance technician of the technical device
44. The operator of the crane develops and agrees with the relevant technical supervision authority the detailed operating conditions describing the organizational and technical activities undertaken to minimize the risks associated with the operation of the crane, only in the case of:
a) operation of UTB in collision conditions
b) lifting and transferring people by UTB designed and manufactured for lifting and transferring loadsc) lifting and transferring loads by two or more cranesd) lack of ability to observe the entire path taken by the load by the operator45. Forms of technical supervision are:
a) full supervision, simplified supervision, limited supervision
b) acceptance testing, periodic testing, and ad-hoc testingc) UDT, TDT, WDTd) all answers are correct46. Where is the minimum and maximum allowable working temperature for a specific tower crane specified?
a) in the crane's operating manual
b) in the assembly work instructionsc) in the sling operating manuald) none of the answers is correct47. Where are the requirements for the allowable temperature range at which a crane can operate specified?
a) in the Technical Supervision Actb) in the regulation of the Minister of Entrepreneurship and Technology
c) in the operating instructions developed by the crane manufacturer
d) in the protocol from the crane's technical inspection48. Where are the dates for the maintenance inspections of cranes provided?
a) in the maintenance log
b) in the technical supervision regulations regarding the operation of UTB
c) in the Technical Supervision Actd) none of the above answers is correct49. The main switch of the crane:
a) should be labeled and located at working level
b) should be able to be turned off but must not be accessible to every construction workerc) answers a and b are correctd) should be located on the crane's tower and be secured against access by unauthorized persons50. The work intensity group of the crane (GNP):
a) does not apply to quick-assembly cranes
b) is a measure of the intensity of crane operation determined by the class of use and load class
c) is defined as the ratio of working time to the crane's downtimed) is defined as a percentage as the ratio of the number of loaded cycles to the number of unloaded cycles51. The Work Intensity Group of a crane is:
a) a summary of the working time of the device and the class of crane usage
b) a summary of the load class and the class of crane usage
c) a summary of the working time of the crane and the load classd) A summary of the number of working cycles and the working time of the crane52. What is the minimum safe distance from a high voltage power line for a line with a rated voltage not exceeding 15 kV?
a) 3 meters
b) 5 meters
c) 10 metersd) 15 meters53. What is the minimum safe distance from a high voltage power line for a line with a rated voltage not exceeding 1 kV?
a) 3 meters
b) 5 metersc) 10 metersd) 15 meters54. What is the minimum safe distance from a high voltage power line for a line with a rated voltage not exceeding 30 kV?
a) 3 metersb) 5 meters
c) 10 meters
d) 15 meters55. What is the minimum safe distance from a high voltage power line for a line with a rated voltage exceeding 110 kV?
a) 5 metersb) 10 metersc) 15 meters
d) 30 meters
56. What is the minimum safe distance from high voltage power lines for lines with a rated voltage exceeding 30 kV but not exceeding 110 kV?
a) 5 metersb) 10 meters
c) 15 meters
d) 30 meters57. Information regarding the load capacity of the technical device may be included:
a) in the operating manualb) on the nameplatec) on the technical device
d) all answers are correct
58. Information regarding the principles of safe operation of the device is included in:
a) the operating manual of the device
b) the act on technical supervisionc) the maintenance logd) the protocol from the inspection conducted by the UDT inspector59. The lightning protection system on tower cranes:
a) may not be present
b) is required for all cranes
c) is required for cranes over 25 m in heightd) is required for cranes over 50 m in height60. The operating manual may not contain:
a) information about the dates and scope of maintenance inspections of UTBb) basic parameters and purpose of UTB
c) dates of technical inspections carried out by the inspection unit
d) information about the operation of the device61. Operating instructions are:
a) a collection of information necessary for the safe operation of the technical device provided by the manufacturer
b) a set of recommendations issued by the Technical Supervision Authorityc) an instruction that must be created by the user of the deviced) all answers are correct62. Workplace instruction:
a) is always provided along with the operating instructions by the manufacturer of the deviceb) is an unwritten collection of customs adopted in the workplace
c) is issued by the employer and contains detailed guidelines regarding health and safety at the workplace
d) does not apply to operators of mobile devices63. How often do we perform a brake test of the lifting mechanism?
a) at least once a day
b) once a monthc) once a weekd) before the UDT inspection64. What is the permissible lifting speed of people in the basket:
a) 0.7 m/sb) 0.6 m/s
c) 0.5 m/s
d) 1 m/s65. What is the only obligation of the operator contained in the technical supervision regulations?
a) operating the device in accordance with the regulations
b) operating the device in accordance with the operating instructions
c) sobriety at the workplaced) having a medical permit66. What actions should be taken after finishing work with the crane?
a) loosen the rotation mechanism brakeb) raise the hook as high as possible
c) position the hoist close to the tower
d) all answers are correct67. What electrical measurements are performed on a tower crane?
a) insulation resistanceb) effectiveness of shock protectionc) resistance of working ground connections
d) all answers are correct
68. The unit of technical supervision is:
a) Technical Supervision Officeb) Military Technical Supervisionc) Transport Technical Supervision
d) all answers are correct
69. A candidate for operating a technical device must:
a) be at least 18 years old
b) have at least vocational educationc) have at least 1 year of work experienced) all answers are correct70. When can you refuse to work with the crane?
a) when the load mass excluding the sling equals the crane's lifting capacity at the given reach
b) the current wind speed exceeds the value specified in the crane's instructions by 2 m/s
c) the lifting limiter signals overload even though the mass of the lifted load is only 50% of the lifting capacity resulting from the device's characteristicsd) all answers are correct71. Whose commands should the operator follow while performing activities with the technical device by the Technical Supervision Unit?
a) conservatorb) construction managerc) rigger
d) UDT inspector
72. The examination board informs the interested person about the exam result:
a) within 7 days after the exam in writing
b) directly after the exam
c) within 14 days after the exam electronicallyd) by registered mail or email after 30 working days from the exam date73. The revision book of the device must contain:
a) a collection of protocols from tests conducted by the inspection unit
b) a document in which maintenance inspections are recordedc) the content of current legal actsd) a list of authorized operators74. Who allows the operation of a technical device without a valid decision permitting operation:
a) is subject to a fine or restriction of freedom
b) is not subject to a penalty if no accident occursc) is subject only to a fined) is subject to imprisonment75. Who can conduct periodic inspections of slings?
a) construction managerb) foremanc) rigger
d) competent person
76. Who can perform the maintenance inspection of a crane?
a) any person designated by the owner of the craneb) the crane operator with the appropriate category of UDT qualification certificate
c) the conservator with the appropriate category of UDT qualification certificate
d) none of the above answers is correct77. Who determines the maximum wind speed above which work on the tower crane should be stopped?
a) construction manager
b) crane manufacturer
c) crane operatord) crane conservator78. Who develops the BIOZ plan?
a) construction manager
b) UDTc) crane operatord) all answers are correct79. Who issues the qualification certificate for operating cranes?
a) municipal officeb) crane owner
c) technical supervision authority
d) all of the above answers are correct80. Which of the listed activities does not fall within the scope of duties of the UTB operator:
a) performing minor repairs of the device within the scope of their education and skills
b) following the operating instructions regarding the operation of UTBc) familiarizing themselves with the work plan and the size of the loads being transportedd) all answers are correct81. The mass of 60 cartons weighing 20 kg each is:
a) 800 kgb) 1000 kgc) 1100 kg
d) 1200 kg
82. The mass of the load consisting of 40 packages weighing 25 kg each is:
a) 800 kg
b) 1000 kg
c) 1100 kgd) 900 kg83. The net mass of 1000 l of water is approximately:
a) 800 kgb) 900 kg
c) 1000 kg
d) 1100 kg84. The mass of the lifted load can be determined based on:
a) the collective tag on the transported loadb) by calculating considering the specific weight and volumec) transport and warehouse documentation
d) all answers are correct
85. One cubic meter of steel weighs approximately
a) 1tb) 5tc) 3t
d) 8t
86. The overturning moment of a crane is the product of:
a) reach and lifting heightb) reach and counterweight weightc) reach and shortest lifting time
d) none of the answers is correct
87. For what period is the qualification certificate for operating tower cranes and quick-assembly cranes issued:
a) 5 years
b) 10 yearsc) indefinitelyd) this is determined by the commission after passing the exam88. The determining moment consists of:
a) reach and height of the crane
b) weight of the crane and counterweight
c) reach and weight of the counterweightd) reach and central ballast89. The factors that do not affect the overturning moment are:
a) wind pressureb) dynamic forcesc) weight of the load
d) none of the above answers is correct
90. The sticker affixed by the UDT Inspector after the technical inspection:
a) is an administrative document stating the validity period of the technical inspection
b) is information stating the date of the next technical inspection
c) must be affixed to the technical device and visible to the operatord) without a readable sticker, the operator cannot start working with the crane91. The repair and modernization of a technical device is performed by:
a) operator within the scope of their skillsb) conservator
c) authorized company
d) user92. A dangerous malfunction of a technical device is:
a) any defect of the technical deviceb) unforeseen damage, as a result of which the device is suitable for partial operationc) unforeseen damage, as a result of which it is suitable for operation only at reduced parameters
d) unforeseen damage, as a result of which the device is not suitable for operation or its further operation poses a threat
93. An accident is:
a) a sudden event that caused bodily injury or death
b) a sudden event that caused a work interruptionc) a sudden event that results in the exclusion of the technical device from operationd) any defect of the technical device caused by a random cause94. The duties of the operator are defined in:
a) the operation manual of the device
b) the maintenance logc) the technical supervision actd) all answers are correct95. The operator's duty regarding the technical device is:
a) to follow the operation manual regarding the operation of the device
b) to follow the operation manual regarding the maintenance of the devicec) to perform repairs of the deviced) all answers are correct96. The operator of the technical device is obliged to:
a) refuse to operate the device if the decision allowing its operation has expiredb) always comply with the supervisor's orders to operate the devicec) adhere to the provisions contained in the operating instructions
d) answers a and c are correct
97. The operator is not allowed to:
a) lift loads whose weight he cannot determine
b) check the technical condition of the devicec) adhere to the provisions contained in the operating instructionsd) conduct external inspections of the device98. An operator who does not comply with the standards and regulations on technical supervision is at risk of:
a) revocation of the qualification rights resulting from the qualification certificateb) a finec) a written reprimand
d) suspension of the qualification rights resulting from the qualification certificate
99. An operator who witnesses an accident is obliged to:
a) provide assistance to the victim(s) of the accidentb) secure the scene of the incidentc) notify the supervisor
d) all answers are correct
100. The operator should conduct inspections of the technical condition of the crane:
a) no less frequently than every 30 days
b) always before starting work
c) no less frequently than once a weekd) together with an authorized conservator during the crane's maintenance101. The operator of the technical device is obliged to stop work when:
a) his physical and mental state on the day of work is inappropriateb) he finds that further operation of the device poses a threatc) the device is faulty
d) all answers are correct
102. The operator of the technical device can start work when:
a) he has current medical examinations
b) before starting work he has checked the UTB according to the manufacturer's DTR
c) he has an outdated qualification certificated) all answers are correct103. The operator of the technical device can start work when:
a) the device has a valid decision allowing its operation if required by the relevant regulationsb) he has a qualification certificate of the appropriate categoryc) the device has a current positive result of the maintenance inspection
d) all the above conditions must be met simultaneously
104. The operator of the technical device can start work when:
a) the device has a current entry in the maintenance log confirming the device's efficiencyb) he has undergone appropriate position trainingc) the device has a valid decision allowing its operation
d) all the above conditions must be met simultaneously
105. The operator of the crane stops work when:
a) the device is faultyb) further operation of the device poses a threatc) the psychophysical state of the operator is poor
d) all answers are correct
106. The operator of a quick-assembly crane can start work if:
a) the machine has a valid decision allowing for operation issued based on relevant regulations, but at a different locationb) has a qualification certificate for operating tower cranes and quick-assembly cranesc) the crane has a current positive result of the maintenance inspection
d) answers a, b, and c are correct
107. The operator of the crane should follow the collision work instructions:
a) always
b) only in limited visibilityc) only in strong windd) answers b and c are correct108. The distance from the axis of rotation of the crane to the vertical axis of the load hook is called:
a) lifting heightb) boom
c) reach
d) jib109. Responsible for ensuring proper operation and maintenance of the technical device is:
a) the operator of the technical device
b) the relevant technical supervision authorityc) the National Labor Inspectorated) UDT inspector110. The load moment limiter is:
a) crane limiterb) maximum load limiter
c) load limiter
d) stability limiter111. A person holding qualification certificates can operate:
a) only devices listed in the scope of the authorization
b) all devices subject to technical supervisionc) other devices subject to technical supervision with the employer's consentd) all UTB with a load capacity of up to 3.2 t112. The person responsible for transmitting signals and messages between the crane operator and the signalman is called:
a) signalman
b) signalingc) signatoryd) informant113. The person who performs activities related to suspending and uncoupling loads is called
a) signalmanb) load handlerc) load operator
d) hook operator
114. After the installation of a tower crane at a new construction site, the decision allowing the operation of the device, after changing the location, is issued each time by
a) qualified conservatorb) construction manager
c) UDT inspector
d) BHP inspector115. After the expiration of the validity period of the qualification certificate for operating the device, the operator:
a) can operate UTB as long as its technical parameters have not changed
b) cannot operate UTB until a new certificate is obtained
c) can operate UTB after submitting an application for a new certificated) answers a and c are correct116. After the expiration of the validity period of the qualification certificate for operating the technical device, the operator:
a) may operate the UTB as long as they continue working for the same employerb) may operate the UTB as long as they submit an application for the issuance of another certificate
c) may operate the UTB only after obtaining a new qualification certificate
d) submits an application for an extension of the validity period of the qualification certificate117. After performing activities on the technical device, the inspector prepares:
a) the operation manual for the device
b) a decision and a protocol of the performed activities
c) a CE declaration of conformityd) all answers are correct118. After the completed technical examination with a positive result, the UDT inspector:
a) extends the validity of the operator's qualification certificateb) marks the device with a sticker, which is permission to use the devicec) informs the user in writing in the maintenance log that they consent to the operation of the device
d) prepares a protocol of the performed activities and issues an administrative decision allowing for
119. After changing the location of the tower crane requiring its disassembly and reassembly in the new workplace:
a) the operator reports the device to the UDT for examination
b) the technical condition and correctness of the assembly is assessed only by the maintainer confirming this in the maintenance logc) the technical condition and correctness of the assembly is assessed only by the operator confirming this in the daily operation logd) no additional actions and checks are required, as long as the decision allowing for operation issued by the UDT is valid120. After changing the location of the tower crane, the decision allowing for operation may be issued by:
a) the maintainerb) the owner of the crane
c) the technical supervision inspector
d) all of the above answers are correct121. After changing the location of the tower crane:
a) the UDT authority must be notified by phone
b) the technical device must be reported for inspection by the UDT authority
c) the crane can be operated provided that a valid decision allowing operation is heldd) the conservator performs movement tests and issues consent for the operation of the crane122. After changing the workplace of the mobile quick-assembly crane:
a) the technical device must be reported for emergency operational inspectionb) the operator performs a static test with a load of 125% of the rated lifting capacity
c) no reporting of the technical device for emergency operational inspection is required
d) the operator performs a dynamic test with a load of 110% of the rated lifting capacity123. After changing the workplace of the crane related to disassembly and reassembly, no emergency operational inspection by UDT is required:
a) no crane if it still has a valid decision allowing operation issued in the previous locationb) tower crane
c) mobile quick-assembly crane
d) answers b and c are correct124. Lifting and moving loads by two or more UTB is:
a) allowedb) prohibited
c) allowed based on detailed operational conditions describing organizational-technical activities undertaken to minimize risks associated with the operation of UTB
d) allowed with the consent of the conservator125. Lifting and moving a load by simultaneously two or more cranes:
a) is always permissible as long as the lifted load does not exceed the lifting capacity of all cranes
b) none of the answers is correct
c) is permissible with the consent of the conservator recorded in the maintenance logd) is permissible only if the cranes have the same lifting mechanism speeds126. Lifting and transporting people by a technical device designed exclusively for cargo transport requires:
a) agreement with the relevant technical supervision authority
b) agreement with the supervisorc) agreement with the OHS serviced) is possible with special caution and under the supervision of an inspector127. Lifting loads using two or more UTB:
a) is permissible, provided that the operator develops detailed operating conditions describing organizational and technical activities that minimize risk
b) is always permissible if the load mass does not exceed the sum of the lifting capacities of the used devicesc) is permissible if the load mass does not exceed half of the lifting capacity of each of the used devicesd) is never permissible128. Lifting people with devices that have been designed and manufactured exclusively for lifting loads:
a) is permissible, after ensuring an appropriate level of safetyb) is prohibited
c) is permissible, after agreeing with the relevant technical supervision authority on detailed operating conditions
d) is permissible once on written order from the supervisor129. Lifting people in a mounting basket suspended on a hook for performing work can take place:
a) with the consent of the construction manager and OHS services according to their guidelinesb) in accordance with the crane and basket instructions for transporting people
c) after receiving an agreed work instruction in the aforementioned conditions agreed upon by UDT
d) without any documents if there are no contraindications from the crane manufacturer130. Lifting a container for transporting concrete along with the person operating this container is:
a) allowed according to the manufacturer's operating instructions for the containerb) allowed but only without concrete
c) allowed based on an instruction agreed with the relevant technical supervision authority and after a positive technical inspection of the crane
d) allowed by all cranes on the construction site provided that written consent is issued by the construction manager131. Leaving suspended on the hook slings and other equipment after work is:
a) always permissibleb) permissible with the consent of the construction managerc) permissible if there are no rooms under the hook where people may be present
d) impermissible
132. The correct definition of the lifting unit is:
a) ton [t]
b) centimeter [cm]c) megabyte [MB]d) megapascals [Mpa]133. The correct definition of the lifting unit is:
a) kg
b) Pac) mthd) mm134. People staying under the load being lifted is:
a) always prohibited
b) allowed for persons controlling the bottom of the load;c) allowed if the safety factor of the slings is not less than 5d) allowed if the safety factor of the slings is not less than 7135. Overloading the technical device during operation:
a) is prohibited
b) is permissiblec) is permissible but only up to 125% of the rated lifting capacityd) is permissible but only up to 110% of the rated lifting capacity136. The extension of the validity of the qualification certificate occurs:
a) upon a written request of the operator
b) automatically after the expiration of the validity period of the certificatec) upon a written notification from the employer of the operatord) after a prior telephone notification137. Moving a load using more than one crane is possible:
a) only if the cranes have the same lifting height and load capacityb) only under the supervision of a UDT inspectorc) only with the consent and under the supervision of the construction manager
d) based on an instruction developed in this regard
138. Transporting people in a basket using a crane should only be undertaken in exceptional cases:
a) when the cost of renting devices intended for this purpose is too highb) when there are difficulties in organizing devices intended for lifting peoplec) when the rental period for devices intended for lifting people is too distant
d) when it is not possible to access the workplace using devices intended for lifting people
139. Transferring loads over people is:
a) allowed provided that written permission is obtained from the person directing the transportb) allowed, after ensuring safety factors for slings and gripping devices greater than 10c) allowed provided that people are notified and equipped with personal protective equipment
d) all answers are incorrect
140. Transporting people in a basket suspended on a crane hook:
a) is prohibitedb) is occasionally permissible at the request of the construction management
c) requires the development of an instruction agreed with the technical supervision authority
d) none of the answers is correct141. The regulation of the lifting mechanism brake can be performed by:
a) an operator authorized by UDT
b) a conservator authorized by UDT
c) an electrician with SEP qualificationsd) an employee designated by the construction manager142. The abbreviation GNP means:
a) permissible maximum load of the craneb) lifting capacity at maximum crane reach
c) work intensity group
d) ability to coordinate crane movements143. The stability of the crane:
a) is maintained when the stabilizing moment is less than the overturning momentb) is maintained only when the overturning moment is equal to the stabilizing momentc) does not apply to cranes anchored to the structure
d) is maintained when the stabilizing moment is greater than the overturning moment
144. The situational sketch of the crane's location at the installation site does not need to include:
a) actual distances of the crane from the surroundings
b) the stamp, signature, date, and construction qualifications of the person who prepared it
c) distance from excavations, power lines, or other technical devices that may cause a collisiond) identification data of the crane and the location of its installation145. The term "resurs" means:
a) boundary parameters used to assess and identify the technical condition, determined based on the number of work cycles and the load condition of the UTB over the assumed operating period, taking into account actual operating conditions
b) work intensity groupc) the period for performing maintenance inspectionsd) none of the answers is correct146. The deadlines for periodic and ad-hoc inspections of technical devices are specified:
a) in the Act on Technical Supervision
b) in the regulation specifying the technical conditions for technical supervision
c) in the construction documentation of the technical deviced) in the maintenance log147. The deadlines for maintenance inspections of the device can be specified:
a) in the operation manual of the technical device and in the regulation specifying the technical conditions for technical supervision
b) in the Act on Technical Supervisionc) in the regulation specifying the technical conditions for technical supervision and in recognized standardsd) in the regulation specifying the technical conditions for technical supervision and in the work instruction in a conflicting location148. The deadlines for maintenance inspections of the device can be specified:
a) in the operation manual of the technical deviceb) in the Act on Technical Supervisionc) in the regulation specifying the technical conditions for technical supervision
d) answers a and c are correct
149. The deadlines for maintenance inspections of technical devices:
a) are included in the operation manual of the technical device
b) is specified by the device conservatorc) is specified in the protocol by the inspector conducting the inspectiond) all answers are correct150. The deadlines for maintenance inspections of tower cranes are performed:
a) every 30 days, unless the manufacturer specifies otherwise
b) every 60 days, unless the manufacturer specifies otherwisec) every 30 days, unless the manufacturer specifies otherwise, except for quick-assembly cranesd) every 30 days151. Tower crane tracks should be inspected daily by:
a) a person with construction and building qualifications
b) the crane operator
c) the construction managerd) the crane maintenance technician152. The lifting capacity of the technical device is a parameter directly related to:
a) the maximum height of the lifted loadb) the maximum volume of the lifted load
c) the maximum mass of the lifted load
d) the product of the mass and volume of the lifted load153. Technical devices not subject to technical supervision are:
a) cranes with a lifting capacity of up to 3.2 tb) hoists and winches as well as overhead cranesc) mobile lifting platforms and aerial work platforms
d) transport slings
154. Technical devices subject to technical supervision are:
a) excavators, backhoe loadersb) pile drivers, drillsc) construction and assembly scaffolding
d) self-propelled cranes, quick-assembly cranes
155. Technical devices subject to technical supervision are:
a) cabin and chair liftsb) storage systems and devices for people with disabilitiesc) freight lifts and ship lifts
d) all answers are correct
156. A technical device can be operated based on:
a) the current sticker from the relevant technical supervision authority specifying the date of the next inspectionb) the current entry of the device's conservator in the maintenance log
c) a valid decision allowing operation issued by the relevant technical supervision authority
d) a positive protocol from the periodic or acceptance inspection157. A technical device under technical supervision can be operated based on:
a) an oral or written permit issued by an authorized conservator
b) a valid decision allowing operation issued by the relevant technical supervision authority
c) the CE marking placed on the deviced) a declaration of conformity issued by the manufacturer158. The Act on Technical Supervision specifies the following forms of technical supervision:
a) total, partial, limited
b) full, limited, simplified
c) full, cyclical, sporadicd) UDT, WDT, TDT159. The operator should report damage to the hoisting rope on the crane to:
a) the device's conservator
b) the construction manager
c) the owner of the craned) all answers are correct160. The agreed repair or modernization of technical devices can be performed by:
a) the repairer or modernizer who has the authorization issued by the relevant technical supervision authority
b) the operator of the technical device who has appropriate experience in repairs or modernizationc) the conservator who has appropriate experience in repairs or modernizationd) a competent operator to a small extent161. The use of a basket for lifting people will never be possible on:
a) rail craneb) building-mounted cranec) crane mounted using lost anchors
d) none of the above answers is correct
162. Under what weather conditions does the tower crane operator have an obligation to cease work?
a) icing, heavy rainb) poor visibility, heavy snowfallc) strong wind above the permissible value
d) all answers are correct
163. In the event of a failure of the communication device, the signalman communicates with the operator using hand signals:
a) until communication is restored
b) until the end of the workday with the consent of the site managerc) no longer than until the completion of the initiated activityd) none of the above answers is correct164. In the case of load-bearing wire ropes used in cranes:
a) strand breaks are permissible,b) wire breaks in strands are not permissible,
c) permissible wear is defined by the standard and the rope operation manual,
d) rope wear is determined by the crane owner165. In the event of noticing a defect in the device, the operator should not:
a) notify the supervisor or the device maintainer about the defectb) repair the defect to the best of their abilityc) stop working with the device
d) mark the device as damaged
166. In the event that the crane manufacturer has not specified the maintenance inspection dates, inspections should be carried out in accordance with:
a) the regulation of the Council of Ministers of December 7, 2012, on the types of technical devices subject to technical supervision
b) the regulation of the Minister of Entrepreneurship and Technology of October 30, 2018, on the technical conditions of technical supervision regarding the operation, repair, and modernization of close transport devices
c) the guidelines of the Office of Technical Inspectiond) the date specified by the inspector of the Office of Technical Inspection in the protocol167. In the event that the crane has a current inspection carried out by a conservator and certified in the maintenance log but does not have a valid decision allowing operation issued by UDT:
a) the crane can be operatedb) the crane can be operated until the date specified in the maintenance log
c) the operation of the crane is prohibited
d) the crane can be operated until an inspection is carried out by the UDT inspector168. In the event that the crane has a valid decision allowing operation issued by UDT, and the conservator notes a malfunction in the operation of the crane in the maintenance log:
a) the crane can be operated until the date specified in the UDT decisionb) the operation of the crane is allowed with a limitation to half of the crane's capacityc) the operation of the crane is allowed with the written consent of the crane owner
d) the operation of the crane is prohibited
169. In the case of conflicting operation of two cranes, what are the additional requirements for safe operation?
a) crane operators must have constant radio contact
b) an instruction for conflicting working conditions for cranes must be created
c) these cranes must be of the same heightd) answers a and b are correct170. In the event of dangerous damage to a technical device or an accident, the operator:
a) immediately notifies UDT of the incidentb) notifies the manufacturer of the device about the causes of the incidentc) immediately repairs the device and returns it to further operation
d) reports the device for repair
171. In the case of a dangerous crane damage or an accident during operation, the operator:
a) immediately informs UDT about the incident
b) informs the manufacturer about the causes of the incidentc) immediately repairs the crane and resumes operationd) reports the crane for repair172. In the case of non-compliance by the operator with the technical supervision regulations, the operator:
a) receives a written warningb) receives post-inspection recommendations
c) is subject to a fine or restriction of freedom
d) answers a and b are correct173. In the case of exceeding the crane's resource, the operator:
a) can operate the crane as long as the crane has a valid decision allowing operation
b) can operate the crane as long as the crane has a current inspection performed by the conservatorc) can operate the crane until a special inspection is performedd) none of the answers is correct174. In the case of a threat to human life or health and property and the environment, the inspector:
a) issues a decision suspending the operation of the technical device
b) issues a finec) formally instructs the operatord) all answers are correct175. In the case of strong winds exceeding the permissible values given by the crane manufacturer, the operator should:
a) take no actionb) work carefully and with reduced speed of movements
c) immediately stop work
d) answers a and b are correct176. As part of the activities before starting work, the operator:
a) checks the technical condition of the technical device through inspectionb) performs static and dynamic testsc) performs operational tests of the machine
d) answers a and c are correct
177. Under the possessed qualification certificate authorizing the operation of cranes, the operator is allowed to:
a) carry out maintenance of the crane according to the maintenance instructions provided by the manufacturerb) make repairs to the crane according to the maintenance instructions provided by the manufacturer
c) remove minor faults described in the operating manual
d) at the request of the maintainer, adjust the elements of the crane's load limiter178. The application for extending the validity of the qualification certificate for operation is submitted by
a) the operator
b) the employerc) the training center where the training took placed) none of the answers is correct179. The anemometer indicator located in the cabin of the tower crane indicates the current wind speed measured in:
a) N/m2b) Km
c) m/s
d) all answers are incorrect180. Identify the statement incorrectly describing the requirements placed on the load limiter:
a) the use of a limiter is required for devices with a load capacity of less than 1000kg or a tipping moment of less than 40000Nm
b) the limiter should operate across the full range of the crane's performance characteristicsc) the limiter should be installed in such circuits that the use of the crane without the limiter engaged is impossibled) the limiter for cranes with a nonlinear load characteristic should be a moment limiter
181. Indicate which of the drawings represents a crane
a) drawing Ab) drawing Bc) drawing C
d) all
182. The maintenance inspections required by law are performed by:
a) a person holding a qualification certificate for maintenanceb) an employee of the manufacturer's authorized service (provided they have qualification certificates for maintenance)c) in-house maintenance services
d) answers a and b are correct
183. Requirements for verbal messages?
a) the message should take the form of short texts, phrases, single words, or groups of wordsb) messages should be as simple as possible, adapted to the recipient's hearing abilityc) the senders and receivers of the message should have a good command of the language in which it is formulated
d) all answers are correct
184. Requirements for sound signals?
a) it should be clearly audible, adapted to the noise level, but it must not be excessively loud or overwhelmingb) it should be easily recognizablec) - it should be distinguishable from the background
d) all answers are correct
185. Requirements for light signals?
a) the emitted light should contrast with the surroundings and the conditions of its use, it should not cause glare but should be clearly visibleb) a surface emitting light in one color or a pictorial symbol on a specific backgroundc) if the device can send continuous and intermittent light signals, the intermittent signal should be used to indicate greater danger
d) all answers are correct
186. The reach is:
a) horizontal from the axis of rotation of the crane to the axis of rotation of the hook
b) horizontal distance from the axis of rotation of the crane to the center of gravity of the lifted load
c) length of the boomd) vertical distance from the level of the crane's foundation to the hook187. The crane's reach is the maximum distance of the hook axis from:
a) the tipping edgeb) the center of the counterweight
c) the axis of rotation of the crane
d) none of the answers is correct188. The reach of the crane is defined as:
a) the vertical distance between the base of the crane and its boom
b) the horizontal distance between the axis of rotation of the crane and the axis of the gripping device
c) the horizontal distance between the beginning and the end of the boomd) the distance from the axis of the gripping device to the place of load placement measured before lifting the load189. The safe operation and maintenance of the technical device subject to technical supervision is the responsibility of:
a) the manufacturer of the deviceb) the service technician
c) the operator and the maintainer
d) all answers are correct190. The proper selection of slings and their correct fastening on the crane hook with the cabin is the responsibility of
a) the construction manager
b) the hook operator
c) the crane operatord) the employee designated by the construction manager191. The task of the hoist installed on the crane's boom is:
a) securing the load suspended on the hook from excessive swingingb) allowing the boom to tilt
c) the ability to change the current reach of the crane
d) guiding the speed limiter cable192. The relationship of lifting capacity to the reach of the crane is called:
a) the moment of the crane's loadb) the reduced reach of the cranec) the lifting characteristic of the crane
d) the lifting capacity characteristic of the crane
193. Qualification certificates for operating tower cranes also entitle you to operate:
a) mobile cranesb) overhead cranes and hoists
c) quick-assembly cranes
d) none of the answers is correct194. Qualification certificates for operating technical devices subject to technical supervision are issued by:
a) the training company after a positive result of the verification examb) the health and safety inspector based on the certificate of course completionc) the employer based on the passed exam
d) the relevant technical supervision authority
195. Qualification certificates for operating technical devices subject to technical supervision are issued by:
a) the owner of the device
b) UDT, TDT, WDT
c) PIPd) all answers are incorrect196. Qualification certificates for operating tower cranes and quick-mounting cranes entitle you to:
a) operate bottom-swing cranes with a lifting capacity not exceeding 6 tb) operate water cranes with a lifting capacity not exceeding 6 tc) all types of tower cranes, except for quick-mounting cranes
d) all types of tower cranes, quick-mounting
197. Qualification certificates entitling to operate technical devices are valid in the area of:
a) the Republic of Poland
b) the European Unionc) have no specified area of validityd) Schengen zone countries198. Qualification certificates:
a) are valid indefinitelyb) are time-limited with a validity period dependent on the number of points obtained in the exam
c) are time-limited with a validity period in accordance with the provisions of the regulation on the procedure for checking qualifications
d) are valid for a period of 15 years199. The qualification certificate for operation can be revoked by:
a) the authority of the relevant technical supervision unit
b) the operator of the technical devicec) the health and safety inspectord) the National Labor Inspectorate200. The qualification certificate for operating technical devices is:
a) valid in the European Union
b) valid with an identity document
c) indefinited) all answers are correct201. The qualification certificate for operating tower cranes and quick-mounting cranes is valid:
a) indefinitely
b) 5 years
c) 10 yearsd) all answers are incorrect202. The qualification certificate for operating tower cranes and quick-mounting cranes also entitles you to operate cranes:
a) stationaryb) mobile and portablec) self-propelled
d) rail
203. Qualification certificates for operation are not required:
a) if the device is operated by its owner
b) if all mechanisms of the device have manual drive
c) if the device is used for private, non-profit purposesd) from persons over 60 years of age204. A set of activities aimed at restoring the usability of a technical device according to the regulations on technical supervision is:
a) modernization
b) repair
c) maintenanced) none of the answers is correct205. According to the regulation of the Minister of Entrepreneurship and Technology of October 30, 2018, the rights to operate tower cranes and quick-mounting cranes also allow you to operate:
a) rail cranes
b) self-propelled cranesc) mobile and portable cranesd) none of the above answers is correct206. Changing the technical parameters or construction of a crane is treated as:
a) modernization of the crane
b) repair of the cranec) removal of defects of the craned) creation of a new crane207. Changing the technical parameters or changing the construction of a technical device is treated as:
a) modernization of the technical device
b) repair of the technical devicec) removal of defects and other irregularities of the technical deviced) creation of a new device208. A crane with a valid decision allowing for operation, after changing location:
a) must be subjected to an ad-hoc operational examination
b) must be subjected to a periodic examinationc) must be subjected to a control examinationd) does not need to be examined, the conservator makes the appropriate entry in the maintenance log209. A tower crane does not need to be reported for examination after:
a) changing the location of the craneb) replacing the load-bearing ropec) replacing the moment limiter
d) all of the above answers are incorrect
210. A tower crane is a crane:
a) top-slewingb) bottom-slewingc) luffing
d) all answers are correct
211. "Zero lock" is:
a) a protection of the crane mechanisms against accidental activation by unauthorized personsb) the setting of the hook block in the resting position after work is completedc) the ability to place the load on the ground in case of crane overload
d) a protection against the automatic activation of the crane after a stop caused by power disconnection with the control levers tilted
212. "Zero lock" protects against
a) unauthorized use by accidental personsb) crane overload
c) automatic activation of the crane after voltage loss
d) cable breakage213. "Zero lock":
a) causes the power supply to the crane to be cut off in an emergency situationb) blocks the movement of the control levers when the main contactor is not engaged
c) protects against unintended automatic movement of the mechanisms
d) allows the main contactor to be engaged when the controller is outside the neutral position214. The current length of the crane's reach can be determined by the operator, among others, using:
a) readings from electronic devices
b) determining the position of the trolley by the hook operatorc) visual assessment of the distance of the trolley from the towerd) no answer is correct215. The anemometer located on the equipment of the tower crane is responsible for:
a) measuring wind speed
b) measuring the mass of the transported loadc) measuring the speed of the moving trolleyd) slowing down the rotation mechanism in top-slewing cranes216. What does the abbreviation IWR mean in the description of the rope?
a) core made of natural fiberb) core in the form of a steel braid
c) core in the form of a steel rope
d) core made of synthetic fiber217. What is the reach of a crane?
a) total length of all boom sectionsb) length of the boom measured horizontallyc) a constant parameter defining the vertical distance to the end of the boom
d) horizontal distance between the vertical axis of rotation of the crane and the attachment point of the gripping technical device
218. What are wind clamps, and in what situation is the operator required to use them?
a) wind clamps are hung on the hook when lifting oversized loadsb) wind clamps are used only by the installer when assembling the crane
c) wind clamps are used to anchor the tower crane to the track it moves on. The operator uses them after work is completed and during wind exceeding the values allowed in the technical documentation
d) Wind clamps are used only by the maintenance worker when climbing the boom219. Do the dimensions of the loads being moved on the construction site affect the permissible load of the crane?
a) no – the load of the crane is determined only by the weight of the lifted load
b) yes – if they cause an increase in horizontal forces related to wind speed acting on the crane structure
c) no, – because horizontal forces do not pose a threat to the operation of the craned) they do not affect, assuming they are secured against rotation220. Does the crane hook need to have a safety device to prevent the sling from falling?
a) no if it interferes with work and the hook operator controls the load
b) yes if it has a mounting socket for the safety devicec) only a unicorn hookd) only a double horn hook221. Does the stability coefficient change during the rotation around the vertical axis of the crane's boom mounted on supports?
a) no, because stability depends on the weight of the lifted loadb) it only changes if the supports are arranged asymmetrically
c) it always changes
d) no, because the stability coefficient is a constant value222. Do advertisements mounted to the boom or tower of the crane affect its stability?
a) nob) they only affect cranes mounted on tracks;c) they only affect cranes above 50m in height;
d) they affect due to the additional wind load on the crane structure
223. The crane's lifting diagram is:
a) a pictogram indicating the date of the crane's approval for operationb) a protocol from the crane's inspection prepared by the UDT inspectorc) a tester used to check the operation of safety devices
d) a graph developed by the crane's manufacturer that shows the relationship between the crane's lifting capacity and the reach value
224. What is the purpose of the electric slip ring (rotating joint) in the crane?
a) prevents the rotating crown from slipping
b) allows free rotation of the crane while ensuring power supply to the device
c) prevents the screws of the rotating crown from looseningd) allows increasing the height of the crane tower without damaging the power source225. External factors affecting the stability of the crane include:
a) temperature and the weight of the carried loadb) the size of the crane's ballast, the dimensions of the load, and the speed of working movements
c) wind load
d) all answers are incorrect226. We do not include the structure of the crane's load-bearing system
a) boomb) towerc) base
d) reach
227. The permissible number of broken wires in the hoisting line:
a) is specified by the rope manufacturer in the operating instructions
b) is specified by the maintenance technician in the maintenance logc) is determined by current regulations regarding technical conditionsd) is fixed and amounts to 30 wires over a distance of 6 diameters228. The permissible number of broken wires in the lifting system lines is determined by:
a) UDT inspectorb) maintenance technician
c) manufacturer
d) machinery directive229. The braking distance of the lifting/lowering mechanism of the hook block in tower cranes does not depend on:
a) the design of the braking systemb) the direction of operation of the lifting/lowering mechanism
c) the size of the transported load
d) the speed at which the braking system will be activated230. The electronic anti-collision system protects the tower crane from:
a) hitting the ground with a load suspended on the hook
b) hitting a fixed obstacle within the crane's working range with the boom structure
c) hitting the block against the guiding mechanismd) hitting an aircraft against the crane structure231. The limiting parameters for hook consumption are defined by:
a) conservatorb) operatorc) operator
d) crane manufacturer
232. What is the difference between reach and boom?
a) reach is a technical parameter, and boom is a structural element
b) reach and boom refer to the same thingc) reach is a safety element, and boom is a structural elementd) boom is truss, and reach is lattice233. What function does the zero lock perform in a tower crane?
a) protects against negative temperatureb) protects against access of people near the crane
c) protects against voltage return and unintended movement of the crane
d) all answers are incorrect234. What wire contact in the hoisting rope braid causes better load distribution?
a) alternatingb) point
c) linear
d) the wire contact in the hoisting rope braid does not affect load distribution235. Which elements of the crane affect its stabilizing moment?
a) only the crane's boom system
b) crane elements located inside the tipping edge
c) only the tower and base of the craned) crane elements located outside the tipping edge236. What ropes should be used when lifting loads with a single rope and in two-rope and multi-rope systems of large length?
a) steel, with a steel coreb) right-handed
c) non-twisting
d) left-handed237. What equipment should a remote control operator have for operating a quick-assembly crane?
a) only levers with direction indicators and an on/off buttonb) only levers with direction indicators, an on/off button, and an emergency stop switch
c) levers with direction indicators, an on/off button, and an emergency stop switch
d) levers with direction indicators, an on/off button, and an emergency STOP switch, as well as the main switch of the crane238. If, in addition to a fixed control panel, the quick-assembly crane is equipped with remote control (radio remote), then:
a) the remote control must ensure the possibility of emergency lowering of the crane's boomb) due to more accurate tracking of the load by the operator while controlling with the radio remote, the lifting and lowering speed of the hook is increased by 10%
c) simultaneous control from the fixed panel and the remote panel should be prohibited
d) controlling with the radio remote should always allow for the release of the rotation mechanism to leave the crane in a free-wind position239. The hook card is:
a) a document confirming compliance with the standardb) a document filled out by the UDT Inspector
c) a document for checking the wear of the hook
d) a document filled out by the manufacturer240. Rail clamps in the driving mechanisms of tower cranes should:
a) secure against unintended movement of the crane
b) be used only in tower cranes with a lifting height above 50 mc) protect the crane from the effects of operating beyond its reachd) be used only when wind speed exceeds 12 m/s241. Rotary column of the crane:
a) is used to change the reachb) limits the working area of the cranec) is used for lifting loads
d) allows rotating the boom relative to the vertical axis
242. Load control in a tower crane with a hook is implemented through:
a) moment limiter
b) wind force limiterc) line force limiterd) answers a and c are correct243. Load control in a tower crane with a luffing boom is implemented through:
a) moment limiter
b) wind force limiterc) line force limiterd) answers a and c are correct244. Lost anchors are used:
a) in quick-assembly cranes
b) during stationary crane assembly
c) in rail cranesd) during crane assembly in strong winds245. Lost anchors are located:
a) in the foundation slab
b) in the central ballastc) on the counterweightd) at the end of the boom246. Criteria for rope wear include:
a) reduction of the outer diameterb) corrosionc) number of broken wires
d) all answers are correct
247. Criteria for crane rope wear include:
a) abrasion of the core of the rope
b) corrosion of the wires
c) excessive stretching and consequently elongation of the roped) corrosion of the core248. Criteria for crane rope wear include:
a) corrosion of the coreb) abrasion of the core of the rope
c) number of broken wires
d) too low elasticity of the wires249. Criteria for crane rope wear include:
a) abrasion of the core of the ropeb) too low elasticity of the strandsc) excessive stretching and consequently elongation of the rope
d) deformation of the rope
250. Which of the following malfunctions requires immediate replacement of the rope:
a) any signs of corrosionb) insufficient lubrication
c) any noticeable reduction in diameter
d) two broken wires over a distance of 6 diameters of the rope251. Which of the following descriptions best describes the correct termination of the rope on the winch drum
a) at least three turns when the block is in the lowest position
b) at least one turn when the block is in the highest positionc) at least four turns when the block is in the lowest positiond) at least six turns when the block is in the highest position252. Which of the mechanisms must be equipped with an automatic brake:
a) the hoist mechanismb) the hook lifting mechanismc) the rotation mechanism
d) all answers are correct
253. Which of the mechanisms does not need to be equipped with a brake
a) the hoist mechanismb) the hook lifting mechanismc) the rotation mechanism
d) the mentioned answers are incorrect
254. Which parameter improves the stability of the crane?
a) increasing the reach
b) decreasing the reach
c) decreasing the lifting heightd) increasing the lifting height255. A non-twisting rope is
a) a left-hand rope with one layer of strandsb) a right-hand rope with one layer of strands
c) a left-hand rope with two layers of strands
d) a right-hand rope with two layers of strands256. Steel ropes are used, among other things, in mechanisms:
a) of rotation and tilting of the boomb) of crane travel and slewing
c) of guiding and lifting
d) of crane travel and lifting257. The safety switch STOP disables:
a) the operation of travel mechanismsb) the operation of lifting mechanismsc) the operation of the outreach change mechanism
d) all answers are correct
258. The main power switch of the crane should:
a) be red in colorb) have the ability to be permanently locked (e.g., with a padlock) in the ON position
c) have the ability to be permanently locked (e.g., with a padlock) in the OFF position
d) be in a location inaccessible to the operator259. The limit switch of the outreach change mechanism installed on tower cranes with a tilting boom protects against:
a) crane overload at the moment of reaching maximum outreach
b) the risk of so-called "overthrowing" the boom after the arm exceeds the upper limit position
c) uncontrolled movement of the boom beyond the permissible limitsd) all answers are correct260. The limit switch for unwinding the rope from the winch drum is designed to:
a) leave an appropriate amount of rope on the drum
b) block all movements of the cranec) disable the rotation of the craned) disable the lifting of the hook in the upper position261. The limit switch is:
a) a safety element protecting the crane from overload
b) a safety element protecting the mechanism from exceeding the limit position
c) a STOP switchd) answers a and c are correct262. The emergency STOP switch should:
a) disconnect the crane's power supply
b) be red and protrude above its housing
c) be located near the crane's blockd) all answers are correct263. Safety switches occurring in the crane control circuits
a) limit switches for lowering and raising the block
b) bumpersc) buffersd) the lever for unlocking the crane's rotation brake264. Limit switches of the extension change mechanism installed in tower cranes protect against:
a) the rope unwinding from the winch drum of the hoist mechanism
b) the hoist trolley colliding with the crane structure
c) crane overloadd) all answers are correct265. A limit switch is called
a) a load control systemb) a stop switchc) a connection of the highest part of the crane tower with the boom allowing the operator to access the cabin
d) none of the answers is correct
266. The maximum load capacity of a tower crane is
a) fixed for a given type of crane
b) changes depending on the configuration of the crane's riggingc) changes depending on the height of the craned) changes depending on the construction site267. A mechanical safety element used in tower cranes is not:
a) cover for moving partsb) support (brake leg) of the crane's travel mechanism
c) clutch of the lifting mechanism winch
d) locking latch of the hook throat268. The slewing mechanism is used in
a) self-propelled cranesb) portable cranes
c) cranes with a luffing jib
d) cranes equipped with a luffing boom269. The mechanism for changing the outreach not used in the construction of tower cranes is the mechanism:
a) luffingb) luffing jib
c) articulated with catches
d) drop mechanism
270. Based on the diagram below, indicate the differences between the assembly version F and R of the crane tower
a) version F is mounted on a lost anchorb) version R is mounted on bases with central ballast
c) version R is mounted on a lost anchor
d) there are no differences
271. In the diagram below, the number 3 denotes:
a) boomb) counterweightc) water hook
d) counterweight boom
272. The lifting speed of the hook is influenced by:
a) the length of the boom and the weight of the counterweightb) the weight of the load suspended on the hook and the diameter of the lifting rope
c) the number of rope strands in the block
d) the diameter of the drum mounted in the hoist273. The lifting speed of the hook is influenced by:
a) the number of lifting rope strands
b) the voltage of the power supply networkc) the length of the boom and the weight of the counterweight ballastd) weather conditions
274. In the diagram presented below, indicate the correct installation of safety pins:
a) installation B and Cb) installation C and D
c) installation B, C, and D
d) all installations are permissible275. The nuts of the screws connecting the individual sections of the boom must be:
a) screwed in from the top sideb) screwed in from the bottom
c) mounted according to the operating instructions
d) of at least class 8.8276. The controllers are elements of the crane:
a) placed in control cabinets, used to change the settings of the crane parameters
b) used for direct control of the crane mechanisms
c) used for indirect control of the crane mechanismsd) all answers are incorrect277. Unless the manufacturer specifies otherwise, the permissible opening of the hook throat is:
a) 2%
b) 5%
c) 10%d) 15%278. Unless the manufacturer specifies otherwise, the permissible wear of the crane hook throat is:
a) 5%b) 3%
c) 10%
d) all answers are incorrect279. The number of anchoring points to the building of the tower crane is determined by:
a) the height of the building being erected, anchoring every 30 meters
b) the manufacturer's instructions for the crane for a given assembly version
c) the forecasted wind speed at the place of operationd) the instructions for transport work280. What does the lifting capacity of a tower crane mounted on a lost anchor depend on, among other things?
a) the mass of ballast on the counterboom
b) the mass of ballast on the counterboom and the order of its arrangementc) the mass of central ballast and the order of its arrangementd) answers b and c are correct281. The load limiter protects against:
a) swinging of the loadb) the hook block reaching the extreme upper position
c) loss of stability by the crane
d) loosening of the load-bearing rope282. The load limiter of a tower crane
a) can be intentionally and permanently bridged during operation by the maintainer when it does not function correctly as intended by the crane manufacturerb) is a device that protects the crane from the effects of excessive wind speedc) only blocks those working movements that increase the crane's holding moment
d) none of the provided answers is correct
283. Basic mechanical safety devices used in the construction of tower cranes
a) cotter pins, pins, buffers, bumpers, limit switchb) buffers, cotter pins, load limiter, pins, bumpers
c) cotter pins, pins, bumpers, hook throat protection
d) cotter pins, pins, stop connector, bumpers, hook throat protection
284. The following drawing shows:
a) assembly versions of the crane
b) only the maximum version of the cranec) crane on a rail based) crane with a luffing boom285. The foundation of the crane must be made:
a) on a concrete slabb) on a base of hardened construction rubble
c) in accordance with the requirements contained in the operating instructions
d) on concrete plates286. The position of the tower crane's free-wheeling
a) it activates automatically when the crane is startedb) it can only be activated by the crane's maintainerc) it can only be activated during strong winds
d) it should be set after work is completed according to the crane's operating instructions
287. The correct markings of the below drawing are:
a) 2 - boom guy; 4 - counter guy; 19 - ballast; 17 - hookb) 1 - boom; 11 - tower; 14 - hook block; 19 - ballast; 20 - counterweight
c) 1 - jib; 11 - tower brace; 14 - waterway; 19 - counterweight; 20 - ballast
d) 9 - tower; 12 - rotation mechanism; 18 - guiding mechanism; 20 - winch288. The correct method of splicing load-bearing ropes is:
a) splicing by braiding over a length equal to at least 30 diameters of the ropeb) splicing using welding technology, after prior agreement with UDTc) splicing using welding technology from strand to strand
d) none of the above answers is correct
289. Overloading the crane means:
a) exceeding the permissible load for a given boom
b) reducing the boom beyond permissible limitsc) exceeding the permissible rotation angle of the craned) exceeding the permissible lifting height290. Before starting work, the scope of checking the crane's braking system includes:
a) conducting external inspections of the braking systemb) performing a dynamic brake testc) performing a static brake test
d) all answers are correct
291. The illustration shows:
a) a three-sheave block, in which both the axes of the sheaves and the hook axis are secured against rotation
b) a block, in which by disassembling the middle sheave, a two-sling rigging is obtainedc) a block, in which by reconfiguring the middle sheave to the traveler, a two-sling rigging is obtainedd) a block, in which disassembly or reconfiguration of the middle sheave to the traveler results in a twofold increase in lifting capacity
292. The presented illustration concerns:
a) the method of hooking lifted loads
b) the method of mounting the ballast of the boom
c) the value of the load limiter's indicationsd) the method of mounting the central ballast
293. The presented illustration defines:
a) the number of inserts in the crane towerb) the current engaged speed of the lifting mechanism
c) the number of sling strands of the hook block
d) the value of the gear ratio of the travel mechanism of the traveler
294. The presented illustration occurring in cranes with an electronic display concerns:
a) the state of the electrical networkb) the rotational speed of the motor
c) the indications of the load limiter
d) the magnitude of the lifted weight295. The example presented in the operating manual illustration concerning the tower crane informs about:
a) the method of arranging the central ballast of the crane for a reach of 30 mb) the method of arranging the central ballast of the crane for two tower heights A and B
c) the configuration and arrangement of counterweights of the boom
d) the calibration of the lifting limiter should be carried out with the specified ballast while lifting it at a reach of 30 m296. Uniform reduction of the outer diameter of the hoisting rope may be caused by:
a) abrasion of the outer surface
b) deformation of the ropec) too low elasticity of the strandsd) too low elasticity of the core
297. The drawing shows the foundation of the crane
a) on the track
b) on the cross framec) on the lost anchord) the drawing does not show the foundation of the crane
298. The drawing shows the foundation of the crane
a) on the track
b) on the cross frame
c) on the lost anchord) the drawing does not show the foundation of the crane
299. The drawing shows the foundation of the crane
a) on the trackb) on the cross frame
c) on the lost anchor
d) the drawing does not show the foundation of the crane300. The self-returning of the control lever in the crane causes:
a) automatic return of the control lever to the last controlled position
b) automatic return of the control lever to the zero position
c) automatic return of the control lever to the minimum speed positiond) none of the answers is correct301. The way the crane is positioned results from:
a) building law regulationsb) internal regulations of the construction managerc) a person with qualifications to assemble cranes
d) assembly guidelines contained in the crane operation manual
302. Checking the limits of working movements consists of:
a) verifying their interaction with cooperating elements (cams, buffers, levers), their closed and open statesb) checking their operation at a speed appropriate for the given mechanism without loadc) verifying whether their activation will cause the appropriate movements to stop
d) all answers are correct
303. Functional control levers of the tower crane with safety devices:
a) protect against unintended movement of the craneb) require confirmation of movement controlc) the crane's movement is performed after tilting the lever without any button combinations
d) answers a and b are correct
304. The stabilizer of the hook block is:
a) a properly selected balancing mass
b) an additional rope securing against the rotation of the block with a tilting boom
c) rigid guidance of the loadd) a stabilizing element mounted in the crane's travel mechanisms305. The technical condition of the hook is determined based on:
a) production dateb) number of notches
c) inspections and measurements
d) number of operating cycles306. The stability of a tower crane is ensured by:
a) lower ballastingb) boom ballastingc) the ground in which the anchor is embedded
d) all answers are correct
307. Control of tower cranes can be realized:
a) wirelesslyb) from a control platformc) from the operator's cabin
d) all answers are correct
308. Controllers are elements of the crane:
a) used for indirect control of the crane mechanisms
b) monitor the correct operation of the load limiterc) used for direct control of the crane mechanismsd) only found in wirelessly controlled cranes309. Plates indicating the crane's lifting capacity along the boom are mounted:
a) every 5 mb) every 10 m
c) at locations specified by the lifting diagram or the crane's technical documentation
d) at the junctions of individual boom sections310. The term "splotka" means:
a) the way of finishing the free end of the rope
b) a structural part of the steel rope
c) a multi-core electric cabled) the way of connecting the free end of the rope through its braid311. The so-called counterweights can be found in cranes:
a) anchored to the building
b) rail-mounted
c) installed using lost anchorsd) none of the above answers is correct312. The lifting capacity of a bottom-swing tower crane
a) decreases with increasing reach
b) is constant throughout the working areac) increases with increasing reachd) decreases with increasing lifting height313. The lifting capacity of a tower crane is
a) constant throughout the entire working range of the crane
b) decreases with increasing radius of reach
c) depends on wind speedd) all answers are correct314. The lifting capacity of a crane changes depending on:
a) the length of the reachb) the type of riggingc) the angle of inclination of the boom
d) all answers are correct
315. Control devices for crane movements
a) must require holding, and in case of their release, they must automatically return to the neutral position
b) do not require holding as long as the crane is controlled from the working levelc) must require holding, and in case of their release, they must remain in the position set by the operatord) do not require holding, and in case of their release, it is not required to return to the neutral position316. The device for caging can be mounted:
a) on a boomb) in the operator's cabinc) on a counterboom
d) on a tower element
317. The safety device protecting the crane from overload is:
a) limit switchb) STOP switch
c) load limiter
d) all answers are correct318. In the construction of which mechanisms of tower cranes are limit switches installed/used?
a) lifting mechanism
b) luffing/hoisting mechanism
c) answers A and B are correctd) None of the answers is correct319. For the regeneration of the hook, it is permissible to:
a) weld cracksb) build up small defectsc) heat and straighten
d) grind off burrs
320. In which mechanisms are limit switches present in a tower crane?
a) liftingb) luffingc) traveling
d) all of the above answers are correct
321. Based on the presented image, indicate the correct answer:
a) open brake
b) direction of slewingc) direction of rotationd) direction of travel
322. Based on the presented image, indicate the correct answer:
a) direction of rotationb) direction of slewingc) direction of travel
d) closed brake
323. Based on the presented drawing, indicate which method of hoisting has the highest lifting speed:
a) Fig 1
b) Fig 2c) Fig 3d) Fig 4
324. Based on the presented drawing, indicate which method of hoisting has the highest lifting capacity:
a) Fig 1b) Fig 2c) Fig 3
d) Fig 4
325. In the case of lifting people in a basket, the safety factor for slings should be:
a) for rope slings - 10, for chain slings - 8
b) for rope slings - 6, for chain slings - 10c) for rope slings - 8, for chain slings - 10d) for rope slings - 10, for chain slings - 6326. The rotation mechanism of a tower crane includes:
a) electric actuator along with limit switchesb) electric motor, gear transmissionc) gear ring along with gear wheel
d) answer b and c is correct
327. The load limiter in a rail crane includes:
a) force limiter and lifting force moment limiter
b) force limiter and anemometerc) lifting force moment limiter and counterweight massd) force limiter and ballast mass328. In tower cranes, the minimum reach:
a) is always 0m
b) depends on the construction of the crane's boomc) is always 10% of the maximum reachd) depends on the construction of the crane's tower329. The size of the central ballast of an overhead crane depends on:
a) the number of strands of the block rope
b) the length of the crane's boom
c) the working speed of the crane's rotation mechanismd) the size of the cross base of the crane's foundation330. The size of the counterbalancing ballast of an overhead crane depends on:
a) the height of the crane's tower
b) the length of the crane's boom
c) the local wind zoned) the type of the crane's foundation331. The wreath is part of the mechanism:
a) drive
b) rotation
c) liftingd) change of reach332. Tower cranes:
a) are built as a single element, the length of which depends on the height of lifting
b) consist of connected sections, and their assembly is carried out based on operating instructions
c) are a welded truss structure, and the connection of individual sections is done by weldingd) are a welded truss structure, and the connection of individual sections is done by riveting333. The water head is part of:
a) the reach change mechanism
b) the drive mechanismc) the lifting mechanismd) does not occur in cranes334. We call the water head:
a) a crane element that performs the reach change
b) a crane element that performs the boom movement in luffing cranesc) a crane winch element responsible for the proper arrangement of the rope during winding on the drumd) an element responsible for controlling the rotation angle in low-speed cranes
335. Indicate what the drawing represents:
a) ballastb) cross
c) counterweight
d) answer A and c is correct336. Indicate the description of the correct way to secure ropes to the rope drum:
a) pressing the rope using at least 2 covers screwed to the drum casingb) in the drum socket using a self-locking wedgec) in the drum socket using a tip insert, pressed by at least two screws
d) all of the above answers are correct
337. The deflection of the lever in direction A causes:
a) activation of the drive mechanism of the operatorb) activation of the crane's drive mechanismc) activation of the crane's rotation mechanism
d) activation of the crane's hook lowering mechanism
338. The deflection of the lever in direction B causes:
a) activation of the drive mechanism of the operator
b) activation of the crane's hook lifting mechanism
c) activation of the mechanism for changing the reach upwardsd) activation of the crane's drive mechanism
339. The deflection of the lever in direction B causes:
a) activation of the drive mechanism of the operator
b) activation of the crane's hook lowering mechanismc) activation of the mechanism for changing the reach upwardsd) activation of the crane's drive mechanism340. The crane's load capacity chart shows the relationship:
a) mass of the lifted load and wind speed
b) mass of the lifted load and reach
c) height of the lifted load and reachd) reach and wind speed341. Limit switches in the lifting/lowering mechanism of a quick-mount crane limit:
a) the speed of lifting and lowering movements of the hook
b) the movements of the lifting and lowering mechanism of the hook
c) no answer is correctd) answers a and b are correct342. List the electrical protections present in a tower crane
a) limit switch for lifting and lowering the hookb) crane travel switchesc) limit switches for the trolley travel
d) all answers are correct
343. The reach of a tower crane is:
a) the absolute length of the boom expressed in metersb) the horizontal distance measured from the outermost point of the crane tower to the end of the boomc) the horizontal distance measured in meters, which the operator is allowed to transport all loads
d) the horizontal distance measured from the axis of rotation of the crane to the extreme position of the hook at the moment of activation
344. The lifting height of a tower crane is:
a) the absolute height of its tower expressed in meters
b) the vertical distance measured in meters, which the operator is allowed to transport all loads
c) the vertical distance measured from the level of the crane's setup to the gripping device located in the extreme upper positiond) the vertical distance measured from the lowest level that can be serviced by the crane to the lower edge of the crane's boom345. The activation (triggering) of the load limiter in a crane:
a) disables all movements of the crane
b) disables all movements that increase the overturning moment of the crane
c) disables the main contactor of the craned) disables the downward movement in the crane
346. From the diagram of the crane's lifting capacity below, it follows that:
a) it is possible to use 2, 3, and 4-part rigging
b) the highest lifting capacity at the end of the boom is achieved with a boom length of 35m
c) the type of rigging does not affect the lifting capacityd) the central ballast is 16t
347. From the drawing of the crane below, it follows that:
a) the minimum reach is 19.5mb) the nominal lifting capacity is 3.5t
c) the length of the counterboom measured from the axis of rotation is 15.1m
d) the length of the boom measured from the axis of rotation is 60m
348. From the drawing of the crane below, it follows that:
a) the minimum reach is 2.3m
b) the nominal lifting capacity is 3.5tc) the height of the operator's cabin is 4.3md) the length of the boom measured from the axis of rotation is 60m349. The safety devices used in tower crane hooks are:
a) lifting limiters, height limit switches, hook nut safety devicesb) safety locks, lifting mechanism limit switches
c) hook latches, hook nut safety devices against unscrewing
d) all answers are correct350. The electrical safety devices used in tower cranes are:
a) inverters, reducers, resistance legs, fusesb) end switches, windproof clamps, couplings, bearings
c) limit switches, load limiters, 'stop' switches
d) contactors, relays, controllers, actuators351. Mechanical safety devices used in tower cranes are:
a) protective barriers, anemometers, reducers, limit switchesb) windproof clamps, support legs, couplings, bearings
c) bumpers, buffers, shields, hook throat protections
d) curbs, rail scrapers, end connectors, load limiters352. The protection against the effects of cable breakage is located in the mechanism of:
a) rotation
b) lifting
c) traveld) guiding353. The purpose of the load limiter is:
a) to protect the crane from structural overloadb) to protect the crane from loss of stabilityc) to protect the crane from dangerous movements
d) all answers are correct
354. A hook block is:
a) an element of the traverse or rigid suspension of the loadb) a mechanical lock preventing the suspension from slipping off the hookc) a mechanical device preventing the hook from rotating during lifting of loads
d) none of the answers is correct
355. The compliance of the number and type of central ballast blocks at the base of the crane tower depends on?
a) the assembly version of the crane in accordance with its operating manual
b) changes with the change in the weight of the transported loadc) does not affect the correct operation of the crane in any wayd) results from calculations made by the operator356. The change of the reach in a tower/rail crane is carried out by:
a) the boom tilting mechanism or the trolley drive mechanism
b) the crane drive mechanism and the rotation mechanismc) the hoisting block mechanism and the trolley drive mechanismd) all answers are incorrect357. The change of the reach of tower cranes is carried out by:
a) the trolley driveb) changing the angle of the boomc) the crane drive
d) answers a and b are correct
358. The reduction of the outer diameter of the lifting rope may be caused by:
a) too low elasticity of the strandsb) too low elasticity of the corec) breaking of the outer wires
d) damage to the core of the rope
359. Increasing the reach can be achieved by:
a) the hoisting and lowering mechanism of the boomb) the rotation mechanismc) the trolley drive mechanism
d) answers a and c are correct
360. A tower crane should be equipped with limit switches:
a) of the hook lifting mechanismb) of the reach changing mechanismc) of the anemometer mechanism
d) answers a and b are correct
361. The tower crane installed with a so-called sacrificial anchor is:
a) a crane whose tower has been placed on a steel structure designed for this purpose, partially embedded in the foundationb) a tower crane whose tower, due to its great height, is always anchored to the building being constructed with additional anchorsc) a crane with a tower made of a truss, moving on a track anchored to the ground
d) a stationary crane for which no disassembly and reassembly at a new workplace is planned
362. Prohibited activities that must not be performed during the operation of cranes include, among others:
a) lifting a load of unknown weightb) transporting a load over peoplec) operating the crane without a current decision allowing for operation
d) all answers are correct
363. Which of the listed instructions must be agreed upon with the technical supervision unit?
a) Collision work instruction
b) Instruction for lifting people in a basket
c) Crane operation instruction near overhead power linesd) Crane operation instruction near excavations364. Ad-hoc control tests are conducted:
a) after changing the crane's workplaceb) after replacing the lifting mechanism ropec) after modernizing the crane
d) all answers are incorrect
365. Ad-hoc operational testing is performed:
a) after changing the crane's location
b) after replacing the window in the cabinc) after replacing the contactor in the control cabinetd) all answers are correct366. The safe distance when working with a crane (horizontally) from high voltage power lines on a construction site is determined by establishing:
a) the distance between the neutral wire of this line and the axis of rotation of the crane hookb) the distance between the nearest extreme wire of the line under voltage and the end of the boom
c) the distance between the nearest extreme wire of the line under voltage and the nearest element of the crane or the load being lifted
d) the distance between the neutral wire of this line and the nearest element of the crane or the load being lifted367. The safe working distances for cranes from power lines specified in national regulations are:
a) vertical
b) horizontal
c) diagonald) resultant368. The cross lock protects against:
a) the simultaneous operation of two mechanisms
b) the unintended activation of the working mechanism after voltage lossc) the effects of atmospheric dischargesd) voltage loss369. The zero lock of the control system is:
a) setting all mechanisms outside the limit zone
b) the inability to control the lifting mechanism set on the limit switch
c) the inability to control the boom extension mechanism set on the limit switchd) none of the answers is correct370. The zero lock protects against:
a) the simultaneous operation of two mechanisms
b) the unintended activation of the working mechanism after voltage is restored
c) the effects of atmospheric dischargesd) voltage loss371. The pneumatic gripper allows lifting a load thanks to:
a) the overpressure in the gripping elements of the gripperb) the change of polarity of the magnetic field of the gripperc) the magnetic flux acting on the lifted element
d) the vacuum in the gripping elements of the gripper
372. What does the gesture made by the signalman in the drawing mean?
a) Start. Attention! Beginning of direction
b) Stop. Break – end of movementc) End. Stopping actiond) Stop! Emergency stop
373. What does the gesture made by the signalman in the drawing mean?
a) Start. Attention! Beginning of direction
b) Stop. Break – end of movement
c) End. Stopping actiond) Stop! Emergency stop
374. What does the gesture made by the signalman in the drawing mean?
a) Start. Attention! Beginning of directionb) Stop. Break – end of movement
c) End. Stopping action
d) Stop! Emergency stop
375. What does the gesture made by the signalman in the drawing mean?
a) horizontal distance
b) correct distance
c) Start. Attention! Beginning of directiond) Stop. Break – end of movement
376. What does the gesture made by the signalman in the drawing mean?
a) movement to the right of the signalmanb) movement to the left of the signalman
c) movement forward
d) movement backward
377. What does the gesture made by the signalman in the drawing mean?
a) movement forwardb) movement to the right of the signalmanc) movement to the left of the signalman
d) movement backward
378. What does the gesture made by the signalman in the drawing mean?
a) movement forward
b) movement to the right of the signalman
c) movement to the left of the signalmand) movement backward
379. What does the gesture made by the signalman in the drawing mean?
a) movement forwardb) movement backwardc) movement to the right of the signalman
d) movement to the left of the signalman
380. What does the gesture made by the signalman in the drawing mean?
a) horizontal distance
b) correct distancec) Start. Attention! Beginning of directiond) Stop. Break – end of movement
381. What does the gesture made by the signalman in the drawing mean?
a) Start. Attention! Beginning of directingb) Stop. Break – end of movementc) End. Stopping action
d) Stop! Emergency stop
382. What does the signal made by the rigger or signalman mean?
a) movement to the right of the signalman
b) movement to the left of the signalmanc) WATCH OUT - there is an obstacle on the left sided) WATCH OUT - there is an obstacle on the right side
383. What does the signal made by the rigger or signalman mean?
a) attention to structures located above
b) activate the lifting mechanism upwards
c) attention to gusts of windd) attention to the adjacent crane
384. What does the signal made by the rigger or signalman mean?
a) activate the lifting mechanism upwards
b) END - stopping action
c) activate the lifting mechanism downwardsd) attention to the adjacent crane
385. What does the signal made by the rigger or signalman mean?
a) activate the lifting mechanism upwardsb) attention to gusts of wind
c) STOP - end of movement
d) attention to the adjacent crane
386. What does the signal made by the hook operator or signalman mean?
a) STOP - stop in case of emergency
b) start the lifting mechanism upwardsc) caution for wind gustsd) caution for the adjacent crane387. What contributes to the assessment of the technical condition of the hook?
a) checking for wear and the opening of the hook throatb) checking compliance with the conditions stated in the operating manual
c) answers a, b, and d are correct
d) checking the free rotation of the hook in the block and the condition of the nut securing it388. Are windproof clamps a cooperating element with:
a) the crane rotation mechanismb) the trolley travel mechanismc) the boom tilting mechanism
d) the track of the rail crane
389. Is it possible to pull the sling from under the load using the crane?
a) yes, with caution
b) no, it is prohibited
c) the hook operator decidesd) the signalman decides390. Can there be items loosely placed on the load being hooked?
a) no, it is prohibited
b) yes, after placing them in the center of the loadc) yes, when the load is positioned horizontallyd) yes, when there is no "swaying" of the load391. Can the operator check the load limiter on a tower crane?
a) no, because it involves overloading the technical deviceb) yes, but only in the presence of a safety inspector
c) yes, according to the operating instructions
d) yes, but only in the presence of a supervisor392. Is the tower crane operator allowed to lift a load frozen to the ground?
a) yes, at the explicit request of the designated signalmanb) yes, if the designated signalman assists in lifting by, for example, prying the load with a lever (wooden block)
c) no
d) yes, if the forklift operator helps lift the load393. Can the sling be left on the crane hook after work is finished?
a) yesb) yes, after obtaining permission from the construction managerc) yes, after maintaining an appropriate distance from collision elements
d) no
394. Is it possible to lift a load with two or more tower cranes according to the applicable regulations?:
a) nob) yes, the method of lifting the load is determined by the crane operators among themselves and they proceed to perform the task
c) yes, the operator develops detailed operating conditions, describing organizational and technical activities undertaken to minimize the risk associated with such an operation
d) the operator agrees on detailed operating conditions with the relevant technical supervision authority and informs the crane operators involved in the operation about the details395. According to the regulations, can a sling be left on the hook after work is finished?
a) yes, but only chain slings
b) it is not allowed
c) yes, but only if the hook is in the highest position and closest to the towerd) yes, it is not dangerous396. Can a crane whose boom extends beyond the construction site fence work?
a) yes, if warning signs are placed on the fenceb) yes, if red warning lights are placed on the fence
c) yes, if there is a work instruction for collision conditions
d) Answers a, b, and c are correct397. Prohibited actions are:
a) dragging loads resting on the ground with the craneb) leaving loads, slings, and other equipment suspended on the crane hook after work is completedc) operating the crane in weather conditions that limit visibility, at dusk or at night without sufficient lighting for the crane's working range
d) all answers are correct
398. The decision allowing operation loses validity in the case of:
a) replacement of control equipment components
b) replacement of the hook
c) replacement of the slingd) replacement of the construction distribution board supplying the crane399. What is the purpose of the emergency stop button 'STOP'?
a) to emergency stop all mechanisms
b) to turn off the crane's power supplyc) to turn off the power supply to the main contactor coild) all of the above answers are correct400. Danger zones, i.e., places where crane operation is prohibited, include:
a) construction site service containersb) toilet cabinsc) public roads
d) all answers are correct
401. Damage disqualifying the use of the hoisting rope includes:
a) sinking of the strandb) significant deformation of the ropec) breakage of the strand
d) all of the above answers are correct
402. The operator's duties do not include:
a) performing minor repairs of the crane within the scope of their education and skills
b) following the operating instructions regarding the handling of the technical devicec) familiarizing themselves with the work plan and the size of the loads being transportedd) assessing the condition of the crane before starting work403. The maximum allowable wind speed during operation has been set by the crane manufacturer at 20 m/s, which converts to:
a) about 50 km/hb) about 60 km/h
c) about 72 km/h
d) these units cannot be converted404. DOR refers to:
a) sling
b) hookc) roped) load405. The operation of the crane's movement limiters should be checked
a) with nominal load
b) without load
c) at nominal speed with nominal loadd) answers a and c are correct406. The operation of a crane in the case of a conflicting location is:
a) possible after developing detailed technical and organizational conditions minimizing the risk of danger occurrence
b) possible after agreeing on the developed instruction with the UDT authorityc) unacceptabled) possible without additional requirements407. When it is impossible to safely descend from the upper part of the crane using ladders, the crane operator in a situation threatening safety should:
a) remain in the crane cabin
b) leave the cabin using special rescue equipment available on the crane
c) make an emergency call to 112d) notify the construction manager (supervisor)408. Where are the duties of the crane operator described:
a) in the workplace instructionb) in the crane operation instruction in the case of a conflicting location
c) in the crane operating manual
d) all of the above answers are correct409. A hook operator is a person who:
a) should have appropriate knowledge and experience in the operation of slingsb) should be distinguishable by their attire from other workers at the working levelc) should have appropriate authorization issued by the employer to perform the function of a hook operator
d) answers a, b, and c are correct
410. Counter-current braking of the boom rotation mechanism:
a) is not allowed in any case
b) is allowed if provided for in the crane operation instruction
c) allowed only in emergency situationsd) does not occur in the rotation mechanisms of tower cranes411. The brake of the lifting mechanism is functional if:
a) the braking distance is within the range of 300-500mm
b) the load remains in position without dropping or sliding suddenly after the hook movement stops
c) the braking force is equal to the product of the load capacity and the lifting heightd) answers b and c are correct412. Information about the maximum wind force at which a crane can operate is contained in:
a) the Act on Technical Supervisionb) the regulation of the Minister of Entrepreneurship and Technology of October 30, 2018, on the technical supervision conditions for the operation, repair, and modernization of technical devices for close transport
c) in the crane operation manual
d) in the maintenance log413. The crane operation manual in collision conditions includes:
a) boundaries and marking of work zones and possible collisionsb) information about work zones only during free movementsc) the method of coordinating crane operations
d) all answers are correct
414. How should a load be suspended on a two-horn hook?
a) the method of attaching the sling does not matterb) so that one "horn" is loaded
c) so that both "horns" are evenly loaded
d) so that the load distribution on the "horns" is 70/30 %415. What is the role of the mechanical lock of the control levers?
a) it prevents the deflection of the control levers without prior unlocking of the lock
b) it prevents accidental deflection of the control levers
c) it prevents uncontrolled activation of the mechanismd) all of the above answers are correct416. What is the maximum wind speed allowed by law for moving oversized loads with a crane?
a) 15 m/sb) 15 km/h
c) 10 m/s
d) 10 km/h417. What impact do weather conditions have on the operation of a tower crane?
a) none if the crane is properly ballastedb) they can contribute to the loss of stability of the cranec) they can cause the anemometer to activate
d) answers b and c are correct
418. What mechanism implements the change of reach in a luffing crane?
a) luffing mechanism
b) lifting mechanismc) rotation mechanismd) travel mechanism419. What actions should be taken before checking the limit switches of the crane's travel?
a) measure the braking distance of the crane in the middle of the trackb) assess whether the roller of the limit switch extends beyond the cam on the trackc) measure whether the length of the cam is sufficient for the crane to stop, the roller not to fall off the cam, and the crane to hit the buffer
d) answers a, b, and c are correct
420. What action should the operator take if they notice a break in the rope's strand or a permanent bend in the rope during operation?
a) notify the supervisor and continue workingb) wrap the rope with tape and work until the technician arrivesc) continue working with a lower load on the hook until the end of the shift
d) gently lower the load to a safe place, stop work, and notify the supervisor
421. What maneuvers can cause excessive torsional (rotational) moment of the crane tower:
a) too rapid lifting of a load equal to the crane's capacity
b) too rapid starting and stopping of the rotation mechanism
c) too rapid lowering of a load equal to the crane's capacityd) too rapid change of the reach by the slewing mechanism with a load422. What are the criteria for assessing the correct operation of the limit switch of the slewing mechanism?
a) it stops the slewing mechanism in a specified directionb) it reduces speed and after reducing speed, it stops the movement of the slewing mechanismc) the operation of the limit switch must not allow the bumper to hit the buffer
d) all of the above answers are correct
423. What safety measures are used in cranes where there is a risk of the boom being swung back?
a) mechanical limiter (bumper)b) operational upper tilt limit switchc) safety limit switch for upward tilt
d) all answers are correct
424. If a load weighing 20 tons is lifted on four rope strands, the load on each strand is:
a) 10 tonsb) 20 tons
c) 5 tons
d) 2.5 tons425. If the crane load moment indicator is malfunctioning, the operator should:
a) cease operation of the crane and report this fact to the supervisor
b) disable the limiter and continue as if the indicator was not installedc) attempt to repair the fault independentlyd) report this fact to the supervisor and continue working with caution426. If the seat in the operator's cabin is equipped with seat belts, they should be fastened:
a) only in windy weatherb) when lifting loads close to rated loads
c) always
d) when it is necessary to continuously turn 180 degrees
427. If no other signals have been established, according to the applicable regulations, in the case of, for example, loss of voice communication, the hand signal shown in the drawing given to the crane operator by the signalman refers to:
a) LIFT UP
b) START Attention! Beginning of directingc) STOP Break - end of movementd) END Stopping operation
428. If no other signals have been established, according to the applicable regulations, in the case of, for example, loss of voice communication, the hand signal shown in the drawing given to the crane operator by the signalman refers to:
a) STOP Break - end of movementb) HORIZONTAL DISTANCE
c) START Attention! Beginning of directing
d) MOVE FORWARD
429. If no other signals have been established, according to the applicable regulations, in the case of, for example, loss of voice communication, the hand signal shown in the drawing given to the crane operator by the signalman refers to:
a) MOVE FORWARDb) START Attention! Beginning of directingc) STOP Break - end of movement
d) STOP Emergency stop
430. If no other signals have been established, according to the applicable regulations, in the case of, for example, loss of voice communication, the hand signal shown in the drawing given to the crane operator by the signalman refers to:
a) START Attention! Beginning of directing
b) LOWER DOWN
c) LIFT UPd) MOVE FORWARD
431. If no other signals have been established, according to the applicable regulations, in the case of, for example, loss of voice communication, the hand signal shown in the drawing given to the crane operator by the signalman refers to:
a) END Stop operationb) STOP Emergency stop
c) STOP Break - end of movement
d) START Attention! Beginning of direction
432. If no other signals have been established, according to the applicable regulations, in the case of, for example, loss of voice communication, the hand signal shown in the drawing given to the crane operator by the signalman refers to:
a) END Stop operation
b) STOP Emergency stopc) STOP Break - end of movementd) MOVEMENT BACKWARD433. If after the loss of power supply to the crane, a load remains suspended on the hook, then:
a) it cannot be left unattendedb) access to the danger zone must be preventedc) ensure that the load is suspended and held safely
d) all answers are correct
434. Each time before starting work, the crane operator should:
a) cordon off the crane's work areab) call the maintenance technician to perform a crane inspection
c) check the proper functioning of the crane's safety devices
d) proceed to work immediately after taking position in the cabin435. When is it possible to use the blocking of the device's lifting limiter (turning off the lifting limiter)?
a) when about 20 cm remains to the load storage areab) when about 50 cm remains to the load storage areac) at the clear command of the designated signalman
d) none of the above
436. When should a functional test of the crane mechanisms be conducted without a load:
a) always before starting operation
b) after lifting the rated load for the first time to warm up the mechanismsc) only when required by the maintenance instructionsd) never, such a test is not recommended for tower cranes437. When can the operator leave the crane cabin:
a) for communication with the signalman
b) after finishing work and securing the crane against wind influence
c) when lifting the load to a safe heightd) to remove faults in the control cabinet438. Combining the movements of the rotation and slewing mechanism
a) is prohibitedb) is possible and speeds up the workc) causes overload of the mechanisms
d) is only possible under the supervision of the signalman
439. Combining the movements of rotation and travel of the entire crane on the track
a) is unacceptableb) is possible and speeds up the workc) is allowed in good track condition
d) is only possible under the supervision of the signalman
440. The visual inspection of the condition of the load-bearing cables and gripping devices should be conducted by the crane operator:
a) once a yearb) with the rated load or, if not available, with any available load not exceeding the rated capacityc) does not conduct it at all, as it is the responsibility of the maintenance person
d) before each start of work
441. The criteria for the proper operation of electrical connectors in a tower crane are defined by:
a) crane manufacturer
b) crane ownerc) crane maintainerd) crane operator442. Who has the right to show the emergency stop signal STOP
a) designated signalmanb) any signalmanc) construction manager
d) any person
443. Which of the following drawings indicates the command “STOP”:
a) DRAWING 1
b) DRAWING 2
c) DRAWING 3d) DRAWING 4444. Which of the following actions should be performed by the operator of a rail crane:
a) verification of the interaction of the cam with the limit switch of the drive mechanismb) inspection of the condition of bumpers, rail clamps, support jaws, and rail scrapersc) checking the proper operation of the cable reel
d) all answers are correct
445. Which of the listed damages/deformations qualify the rope for immediate replacement:
a) breaking of the strand or pressing of the strandb) reduction of the rope diameter caused by core breakagec) deformation in the shape of a basket, knots, loops, or tightened loops
d) all of the above answers are correct
446. Which symptom is a sign of the steel rope core breaking?
a) leaking lubricant
b) local reduction of the rope diameter
c) imprint of the strands in the groove of the pulleyd) lumps forming on both sides of the damaged area447. The rope of the winch mechanism should be replaced when:
a) the core of the rope breaksb) one strand breaksc) the rope is crushed
d) all of the above answers are correct
448. We loosen the brake of the rotation mechanism
a) always after finishing workb) only in calm weather
c) in situations specified by the manufacturer
d) never449. The load can be placed outside the reach of the crane:
a) by pulling the load with an appropriate steel ropeb) by swinging the load and quickly lowering it to the unloading sitec) by pulling the load with an appropriate synthetic rope
d) all answers are incorrect
450. A load suspended on a hook:
a) can be left unattended by the crane operator provided that the appropriate height is maintained above collision elementsb) can only be left under the supervision of the hook operatorc) can be left unattended by the crane operator in calm weather
d) cannot be left unattended by the crane operator
451. The upper limit switch of the lifting mechanism in a tower crane:
a) stops the hook movement upwards
b) simultaneously stops the hook movement upwards and the boom in the direction of increasing reach
c) simultaneously stops the hook movement upwards and the boom in the direction of decreasing reachd) simultaneously stops the hook movement upwards and the rotation mechanism452. We check the limit switch of the hook lifting mechanism:
a) with nominal loadb) with any load
c) without load
d) we do not check as its activation requires intervention from the maintenance technician453. The limit switch of the lifting mechanism:
a) means the same as the emergency stop switch "STOP"b) causes the crane's dangerous movements to stop after the load limit switch is activatedc) is a working element of the lifting mechanism
d) serves as a safety device in the extreme position of the hook
454. The limit switch for lifting the hook in a crane with a tilting boom:
a) only stops the hook movement upwardsb) only stops the boom movement downwards
c) simultaneously stops the hook movement upwards and the boom movement downwards
d) simultaneously stops the hook movement upwards and the boom movement upwards455. The limit switch in the lifting mechanism in the downward direction should be checked:
a) with a load equal to the crane's lifting capacityb) with the permissible load at the end of the boom
c) without load to the lowest level serviced by the crane (e.g., the bottom of the excavation)
d) always at maximum reach456. The anemometer switch installed in the safety circuit causes:
a) disconnection of the main contactor after the wind exceeds the allowable speedb) signaling the exceedance of the allowable wind speed by an audible signalc) signaling the exceedance of the allowable wind speed by a light signal
d) All of the above answers are correct
457. The emergency stop switch should:
a) disconnect the power supply of the crane
b) remain locked in the on positionc) be located at the crane's blockd) be located on the hoist458. The mechanical protection of the hoist serves to:
a) stop the hoist in case of loss of the power supply voltage to the craneb) stop the hoist in case of the load limiter activation
c) stop the hoist in case of the rope of the extension mechanism breaking
d) stop the hoist in case of the rope of the lifting mechanism breaking459. The guiding mechanism in a tower crane:
a) ensures proper winding of the load rope on the drum of the lifting mechanism
b) allows for changing the value of the extension
c) enables winding the power cable while the crane is movingd) allows for changing the configuration of the boom460. The mechanism for changing the value of the extension in a tower crane with a hoist:
a) is activated automatically after controlling the movement of the lifting mechanismb) is activated automatically after controlling the movement of the crane's rotation mechanismc) such a mechanism occurs only in a tower crane with a tilting boom
d) is activated by the operator using the appropriate lever of the controller and operates independently of the crane's rotation mechanism
461. Mounting advertising banners on the crane structure is:
a) always prohibited
b) allowed in places and sizes specified by the crane manufacturerc) allowed only with the consent of the crane userd) allowed only after written agreement with UDT462. The ability to associate the working movements of the crane depends on:
a) the technical condition of the crane
b) the provisions in the operating instructions of the technical device
c) the provisions in the device testing protocold) the skills of the operator
463. Based on the diagram below, determine the total mass of the crane's central ballast:
a) 12480kgb) 23520kg
c) 32000kg
d) 8520kg
464. In the presented pictogram, the command "End Stop action" is represented by a person:
a) A
b) B
c) Cd) D465. In the presented pictogram, the command "Stop Break - end of movement" is represented by a person:
a) A
b) Bc) Cd) D
466. In the presented pictogram, the meaning of the signal "Horizontal distance" is represented by a person:
a) Ab) B
c) C
d) D467. In the presented pictogram, the meaning of the signal "STOP emergency stop" is represented by a person:
a) Ab) Bc) C
d) D
468. The stability of a tower crane is not affected by:
a) the weight of the craneb) the weight of the lifted loadc) wind pressure
d) the type of hoist lifting mechanisms
469. In the work area of the crane, under limited visibility, it is ensured that:
a) lighting of appropriate intensity providing proper visibility to the crane operator at every load pickup point
b) lighting of appropriate intensity providing proper visibility to the signalman at the load pickup pointc) outline lighting providing proper visibility of the crane structured) none of the answers is correct470. Excessive operational wear of the crane hook is:
a) the widening of the hook throat above 5% of the nominal value,b) the wear of the hook below 10% of the nominal value,c) the absence of a pawl on the throat
d) all of the above answers are correct
471. The following defect may threaten the safety of the crane's operation:
a) inactive sound signalb) torque limiter operating under excessive loadc) missing rung in the ladder
d) all mentioned in points a, b, c
472. The following defect may threaten the safety of the crane's operation:
a) significant number of broken wires on the lifting mechanism lineb) loose nut of the bolt connecting the tower elementsc) loud operation of the motor rotation fan
d) answers a and b are correct
473. An unfavorable influence on the stability of the crane is the parameter:
a) increase in reach
b) decrease in reachc) decrease in lifting heightd) increase in lifting height474. Unless the manufacturer specifies otherwise, the dynamic brake test of the lifting mechanism hook system should be performed:
a) with nominal load and at minimum reachb) lowering the load several times stopping the movement with the STOP buttonc) gradually reducing the lowering speed from the smallest to the largest
d) all answers are correct
475. Unless the manufacturer specifies otherwise, the test of the crane's overload limiter should be performed:
a) with a load of 125% massb) at a reach consistent with the lifting capacity diagram in the area of the limiter's operationc) with a load consistent with the lifting capacity diagram for a given reach
d) answers b and c are correct
476. Unless the manufacturer specifies otherwise, we check the correctness of the operation of the limit switches of the extension mechanism:
a) with maximum loadb) with nominal loadc) with minimum load according to the lifting diagram
d) without load
477. Unless the manufacturer specifies otherwise, the static test of the brake system of the hook lifting mechanism should be performed:
a) by lifting and holding a load of 125% for 1 hour
b) by lifting and holding a load of 100% at the minimum extension
c) by lifting and holding a load of 110% at a distance according to the lifting diagramd) by lowering the load several times, stopping the system by releasing pressure on the control lever478. Unless the manufacturer specifies otherwise, we check the limit switch of the hook lifting mechanism upwards:
a) with nominal weight
b) without weight
c) first without weight, and then with weightd) with the largest available weight, not less than 50% of the nominal lifting capacity479. The duties of the tower crane operator are found in:
a) in the regulation of the Minister of Entrepreneurship and Technology of May 21, 2019
b) in the operation manual of the technical device
c) in the health and safety instructions of the construction managerd) answers A and B are correct480. Operating the crane during thunderstorms:
a) is permissible with wind speeds in gusts below 15 m/sb) is permissible if there is a collision work instructionc) is permissible if visibility is sufficient
d) is prohibited
481. The operator, before starting work, checks the brake of the hook winch:
a) without loadb) always with the rated loadc) there is no obligation to check the brake
d) with the first load lifted that day
482. The assessment of the technical condition of the ropes is carried out by:
a) only the maintenance technician during maintenance inspections
b) the operator as part of the activities before starting work
c) only the UDT inspector during the performed activitiesd) ropes are subject to periodic replacement - there is no need for assessment483. Bumpers in a tower crane occur in:
a) the travel mechanism
b) the rotation mechanismc) the lifting mechanismd) the lowering mechanism484. The load limiter in the event of crane overload causes:
a) only the lowering movement of the hookb) the shutdown of the movement to reduce the outreach
c) the shutdown of the lifting movement of the hook
d) the shutdown of all working movements485. The operator, when finishing work with the crane:
a) acts in accordance with the crane's DTR and the Safe Work instruction for the crane
b) informs only the site managerc) informs only their supervisord) no requirements are specified486. The operator is obliged to refuse work in the case of:
a) malfunction of the lifting or guiding mechanism brake
b) ambient temperature below 0°Cc) loud operation of the engine rotation fand) all answers are correct487. The operator is obliged to respond to the STOP signal which is triggered by:
a) the riggerb) the site managerc) the construction worker
d) all answers are correct
488. The operator is obliged to familiarize themselves with:
a) the work instruction in collision conditionsb) the assembly instruction of the operated cranec) the operating manual of the operated crane
d) answers a and c are correct
489. After finishing work, the operator should:
a) set the block in the upper position at the tower, release the rotation brake - according to the operating instructions
b) set the block along with the slings at half the height of the tower, release the rotation brake only in case of expected bad weatherc) lock the rotation braked) set the block along with the slings at the end of the boom in the quick-mounting crane490. Upon noticing a damaged power supply cable of the crane, the operator should first:
a) turn off the manual switch of the crane
b) isolate the damaged section of the cablec) turn off the manual power switchd) move away from the crane to inform the supervisor491. The operator during the daily operation of the crane noticed cracks in the concrete ballast of the crane. How should he behave?
a) he should consider the crane as defective and stop working with it
b) he can continue working with the crane because the concrete ballast is internally reinforced, so the cracks in the concrete do not reduce the weight of the ballastc) he should inform the device's maintenance technician about this and record it in the crane's maintenance logd) he should report this fact to the site manager, and if the manager considers the changes to be harmless, then at his command the operator may continue working with the crane; this fact is recorded by the site manager in the construction log492. The operator noticed a deformation of the lifting mechanism rope in the shape of a basket (very large loosening of the outer strands). In this situation:
a) work can be done with a reduction of the load capacity to halfb) work can only be done on the written order of the site managerc) work can only be done until the end of the shift
d) none of the answers is correct
493. The crane operator - during work - follows the commands of:
a) the signalman
b) the signalmanc) the site managerd) his superior494. The crane operator should react to the 'stop' signal coming from:
a) only the designated signalmanb) only the site managerc) only the inspector
d) any signaling person
495. Before using the special rescue equipment that is part of the crane's equipment, the crane operator should:
a) check the date of approval for use of the rescue equipmentb) familiarize himself with the operating instructions of the rescue equipmentc) assess the technical condition of the rescue equipment
d) all answers are correct
496. The tower crane operator should refuse to perform work in a situation when:
a) the wind speed exceeds the threshold value of 10 m/s
b) there is no proper communication with the signalman located at the working levelc) they do not know the weight of the lifted loadd) answers b and c are correct497. The tower crane operator working on a construction site during the load lifting operation collaborates with:
a) the rebar workerb) the bricklayer
c) the signalman and the signaler
d) the construction manager498. Before starting work, the tower crane operator should:
a) check the operation of the zero lock with a load equal to the rated lifting capacity
b) check the operation of the zero lock without a load
c) check the operation of the limit switch of the lifting mechanism in the "up" direction with a load equal to the rated lifting capacityd) check the operation of the limit switch of the lifting mechanism in the "down" direction with a load equal to the rated lifting capacity499. The operator is prohibited from:
a) coordinating movements as specified in the operating instructions
b) lifting loads with a weight equal to the rated lifting capacity
c) working during raind) checking limit switches with a load500. The person directly collaborating with the operator during loading operations is:
a) the signalmanb) the construction managerc) the signaler
d) answer a and c is correct
501. The person authorized to give the command 'STOP' while operating the crane is:
a) only the signalmanb) only the project managerc) only the construction manager
d) none of the answers is correct
502. A broken strand of the crane's rope causes that:
a) the operation of the crane must be immediately stopped
b) it is possible to work only until the rope is replaced with a new onec) it is possible to work only on the condition that the remaining strands are not damagedd) it is possible to work on the condition of reducing the weight of the lifted loads by half503. The priority of work in collision conditions of two tower cranes located at different heights is:
a) the crane located higherb) such work is not permitted
c) the crane located lower
d) the construction manager decides504. After adding a segment of the boom resulting in a change in the reach of the tower crane, it is necessary to:
a) report the device for acceptance testingb) report the device for emergency operational testingc) report the device for emergency control testing
d) there is no obligation to perform technical testing
505. After what action is it necessary to apply to UDT for a re-examination of the tower crane?
a) after changing the work location of the tower crane, which required disassembly and reassembly of the craneb) after replacing the load rope of the tower crane winchc) after repairing the limit switch of the tower crane's trolley
d) answers a and b are correct
506. After exceeding the resource of the extension mechanism:
a) a special inspection of the crane's extension mechanism must be performedb) the crane can be further operatedc) the crane can be operated under the supervision of the conservator
d) the crane will automatically disable the extension mechanism
507. After identifying which discrepancies will the operator not operate the crane:
a) damaged concrete block of the central ballastb) malfunctioning warning signal of the load limiterc) weather conditions hindering crane operations, e.g. fog
d) all answers are correct
508. After a failure of the hoist mechanism, the operator:
a) can work with special caution
b) should lower the load and turn off the crane
c) should immediately turn off the crane regardless of whether there is a load on the hook or notd) can continue working as the technical condition of the hoist does not affect safety509. After the limit switch for the hook lifting is activated, the following movements are disabled:
a) lowering the hook
b) lifting the hook
c) rotating the craned) all answers are correct510. After finishing work, the operator's duty is:
a) to press the safety switch "STOP"b) to raise the hook block to a height of no less than 5 m above the highest collision elementc) to engage the free-wind position (not applicable to cranes with a boom in collision with an obstacle)
d) to anchor the crane
511. After finishing work, the operator's duty is:
a) to raise the hook to the highest possible position without hitting the limit switch of the lifting mechanismb) to set the hook in the minimum outreach positionc) to secure the cabin against access by unauthorized persons
d) all answers are correct
512. After finishing work, the operator is obliged to
a) release the rotation brake to allow the crane to align freely with the windb) turn on the cabin heatingc) turn off the main contactor
d) answers a and c are correct
513. After finishing work, the crane operator:
a) leaves the hook block in any position
b) winds the crane
c) always attaches the hook to the tower or a heavy element to secure it against rotationd) does not have to perform any operations514. After finishing work, the operator's duties include:
a) calling a technician to perform an inspection of the crane
b) providing information about any malfunctions of the crane
c) loading the hook with a load of about 10% of the rated capacity to prevent swinging of the hook blockd) absolutely turning off all electrical energy receivers installed on the crane515. After changing the location of the quick-mount crane:
a) the device must always be reported for inspection by the UDT authority
b) it is not necessary to report the crane for inspection, it can be operated provided there is a valid decision allowing operation
c) the UDT authority must be notified by phoned) answers a and c are correct516. After changing the workplace of the mobile quick-assembly crane, it is necessary to conduct:
a) operational inspectionb) periodic inspectionc) acceptance inspection
d) maintenance review
517. After changing the height of the tower crane through so-called "caging", it is necessary to:
a) report the device for acceptance inspectionb) report the device for operational inspectionc) report the device for ad-hoc control inspection
d) there is no obligation to perform a technical inspection
518. Taking loads from a location outside the construction site is:
a) prohibitedb) allowed
c) allowed provided that the instructions describing such a situation are followed
d) allowed provided that loads weighing 50% of the nominal capacity are carried519. During the assessment of the technical condition of the crane structure, the operator checks:
a) the condition of non-detachable connectionsb) the condition of detachable connectionsc) whether there are any deformations and other mechanical damages on the structure
d) all answers are correct
520. During the assessment of the technical condition of the tower crane's rotation mechanism, the operator checks:
a) whether all bolts and nuts have a mark indicating their grade
b) whether all bolted connections show no damage or deformations
c) whether the tightening torque of the bolts is in accordance with the manufacturer's instructionsd) all answers are correct521. During the assessment of the technical condition of the crane tower's bolted connections, the operator checks:
a) the torque value of the tightened boltsb) whether the installed bolts and nuts are of the appropriate strength class
c) the completeness of the connections
d) all answers are correct522. During the assessment of the technical condition of tower cranes, the operator:
a) checks the correctness of the tower installation in accordance with the post-installation documentation
b) the condition of the bolted connections of the individual sections of the crane towerc) measures the height of the towerd) answers a and b are correct523. When lifting the block, the operator set the control lever to the neutral position and the mechanism continues to move. In this situation:
a) the emergency STOP switch should be pressedb) the crane's operation should be stopped, this fact reported to the supervisor, and a request for the crane to be checked by the maintenance technician should be made, as this is a fault that threatens safetyc) no answer is correct
d) answers a and b are correct
524. During operation, loud knocks suddenly appeared in the lifting mechanism. The operator should:
a) continue working without changes if lifting is possible
b) stop work, report the fault to the site manager, and request the mechanism to be checked by the maintenance technician
c) continue working, report the fault to the site manager, and request the mechanism to be checked by the maintenance techniciand) continue working but at reduced speeds, if lifting is possible525. During work after dark
a) the entire work area of the crane should be illuminated
b) only the loading and unloading points may be illuminatedc) only the communication routes in the crane's work area may be illuminatedd) lighting is not required if the transport of the load is secured by the hook operator using a rope526. During operation, in the event of a power failure, the crane's rotation brake:
a) engagesb) loosensc) remains in the state prior to the power failure
d) must loosen automatically so that the crane can rotate freely depending on the wind direction
527. During operation, sudden strong vibrations appeared in the lifting mechanism. The operator should:
a) continue working without changes if the mechanisms are functioningb) continue working, report the malfunction to the site manager, and request the mechanism to be checked by the maintenance technician
c) stop working, report the malfunction to the site manager, and request the mechanism to be checked by the maintenance technician
d) none of the answers are correct528. During operation, it is prohibited to:
a) lift loads of unknown weight
b) all answers are correct
c) lift frozen and covered loadsd) lift loads with the rope positioned at an angle529. During the movement of the winch along the boom, it suddenly stopped and the rope is seen loosening. This fact may indicate that:
a) the transferred weight is too large
b) the guiding mechanism's rope is too loose or broken, and the mechanical safety device has activated
c) the boom extension mechanism brake has failedd) the lifting mechanism brake has failed530. When checking the correct operation of the limit switch of the tower crane's travel mechanism, the buffer:
a) should hit the stop placed at the end of the track to check its correct setting
b) should not hit the stop
c) may hit the stop in such a way that it does not lead to its complete compressiond) may hit the buffer only at half the nominal speed531. When using radio control, the operator:
a) should signal the start of movement with an audible signalb) should be at a safe distance from the loadc) can leave the load unattended while moving from the loading place to the unloading place
d) all answers are correct
532. During wind speeds exceeding those permitted by the crane manufacturer, the operator should:
a) stop working with the crane and set it to a free-wind position
b) stop working with the crane and lock the rotation mechanism brakesc) continue working, remembering not to lift loads heavier than 50% of the rated capacityd) continue working, informing the supervisor of the above fact533. When loading/unloading a truck using a crane, the vehicle driver should be:
a) in the vehicle cabinb) on the vehicle's loading platform
c) outside the loading/unloading zone
d) in the operator's cabin534. Lifting and moving loads by two or more cranes is:
a) prohibitedb) allowed with the participation of two hook operatorsc) allowed under the supervision of a designated health and safety employee
d) allowed after the operator has developed detailed operating conditions
535. Lifting people in a basket using a tower crane
a) is always completely prohibitedb) is allowed, as long as we have a fully enclosed basket available
c) is allowed after agreement, conducting UDT testing, and obtaining a decision for using the crane with a basket for lifting people
d) allowed without restrictions536. Lifting loads permanently attached to the ground or frozen to it:
a) may cause the crane to tip over due to the sudden release of the lifted load
b) is allowed but only if the value of 100% of the lifting capacity is indicated by the load limiter in the operator's cabinc) is always allowedd) answers a and c are correct537. Lifting loads using two or more technical devices:
a) is permissible, provided that the operator develops detailed operating conditions describing organizational and technical activities that minimize risk
b) is always permissible if the weight of the load does not exceed the sum of the lifting capacities of the devices usedc) is permissible after agreement with the crane operatorsd) is always not permissible538. Lifting loads connected to the ground:
a) is allowed after determining the degree of soil compaction in advanceb) is allowed with the participation of a riggerc) is allowed with the participation of a signalman
d) is prohibited
539. Lifting a load between a rising building and the construction fence is permissible:
a) if the fence has warning signsb) if a safety zone of at least 2 m distance from the construction fence is maintained
c) if a safety zone of at least 6 m distance from the construction fence is maintained
d) no answer is correct540. Lifting frozen loads:
a) is allowed after determining the degree of soil freezing in advanceb) is allowed with the participation of a riggerc) is allowed with the participation of a signalman
d) is prohibited
541. Electrical measurements for tower cranes are performed:
a) in accordance with the regulation of the Minister of Entrepreneurship and Technology of October 30, 2018, on the technical conditions for technical supervision in the field of operation, repair, and modernization of technical devices for close transport
b) every 5 yearsc) only when the control panel has been replacedd) in accordance with the Regulation of the Council of Ministers of December 7, 2012, on the types of technical devices subject to technical supervision542. A properly functioning limit switch of the lifting mechanism of the hook of a gantry crane in the upward direction should:
a) disable the movements of the outreach change mechanismb) disable the rotation mechanismc) disable the lifting mechanism in the upward direction
d) answers a and c are correct
543. A properly functioning limit switch of the lifting mechanism of the hook of a crane with a tilting boom in the upward direction should:
a) disable the lifting mechanism of the hook in the upward directionb) disable the movement of the outreach change mechanism in the direction of increasing outreachc) disable the lifting mechanism of the boom
d) answers a and b are correct
544. A properly functioning limit switch of the outreach change mechanism of a gantry crane should:
a) disable the trolley movement before it approaches the crane structure at a distance in accordance with the operating instructions
b) disable the lifting mechanism of the hookc) disable the rotation mechanism of the craned) all answers are correct545. A properly functioning limit switch of the outreach change mechanism of a crane with a tilting boom in the upward direction should:
a) disable the lifting mechanism of the hook
b) disable the lowering mechanism of the hookc) disable the movement mechanism of the gantryd) disable the rotation mechanism546. Above what height should access to the tower crane cabin be ensured by means of a lift (elevator) or another technical device facilitating access
a) 60mb) 70m
c) 80m
d) 90m547. Leaving slings and other equipment suspended on the crane hook after work is finished:
a) is permissible
b) is prohibited
c) is permissible as long as the sling or equipment will be used during work the next dayd) is permissible as long as the sling or equipment is not in the danger zone of work548. Leaving a load suspended on the crane hook
a) is allowed, because the load will never fallb) is allowed when the hook operator gives consent and designates a safe zone
c) is prohibited
d) is allowed provided that the load mass does not exceed 50% of the crane's lifting capacity549. Free wind position:
a) activates automatically when the crane is startedb) can only be activated by the crane maintainerc) can only be activated during strong winds
d) allows the crane to freely position itself in the direction of the wind
550. Working after dark is possible if:
a) there is lighting on the construction site that allows work and ensures full visibility
b) working after dark is prohibitedc) if the operator installs additional lighting on the craned) at least the communication routes on the construction site are illuminated551. Work at a distance less than permissible from the overhead power line is allowed under the condition
a) of agreeing on work conditions with the technical supervision authoritiesb) of exercising special caution during work
c) of obtaining the owner's consent for the overhead power line
d) None of the above answers is correct552. Work near overhead power lines
a) can take place without additional formal requirements if the nature of the work does not require approaching the line (they run outside the construction site fence) and the distance from the crane tower to the nearest line wire is greater than 30 mb) can take place without additional formal requirements if the crane is equipped with a collision detection system that disconnects all crane movements towards the linec) can only take place based on an agreement with the technical supervision office instruction and conditions
d) can only take place based on an instruction prepared by the operator, e.g., the Safe Work Execution Instruction (IBWR), which is an annex to the Safety and Health Protection Plan (Plan Bioz)
553. Work with a basket for lifting people
a) can only take place based on an agreement with the technical supervision office instruction and conditions, only if the crane's operating manual contains provisions regarding work with a basket for lifting people
b) can only take place based on an agreement between the basket manufacturer, the crane servicing company, and the operator's instruction and conditionsc) can only take place based on an agreement with the technical supervision office instruction and conditions, even if the crane's operating manual does not contain any provisions regarding work with a basket for lifting peopled) can only take place based on an instruction prepared by the operator, e.g., the Safe Work Execution Instruction (IBWR), which is an annex to the Safety and Health Protection Plan (Plan Bioz)554. Work with a service bypass (unlocking) of the moment limiter
a) is allowed when transporting loads of known mass (e.g., concrete rings) not exceeding the minimum mass (at the end of the boom) handled by the craneb) is prohibited when the crane is in operation mode (transporting loads)
c) is allowed, but only for the purpose of transporting or retracting the load in case of overload detection
d) is allowed but only at the explicit request of the site manager and solely for the purpose of completing the unloading of a delivery batch, and on the condition of working at the lowest operational speeds555. The operation of cranes in a collision location is:
a) possible based on the appropriate work instruction
b) prohibitedc) possible under the supervision of a designated health and safety employeed) possible only in calm weather556. The operation of a crane near an overhead power line with a rated voltage of 110 kV is:
a) permissible with a distance of no less than 5m
b) permissible with a distance of no less than 10m
c) permissible with a distance of no less than 15md) permissible with a distance of no less than 30m557. The operation of a crane in the absence of the operator's ability to observe the entire path taken by the load is:
a) permissible after agreement with the rigger on the transport route of the load
b) prohibited
c) permissible only based on instructions agreed upon in the appropriate technical supervision unitd) permissible provided that the operator develops detailed operating conditions describing organizational and technical activities to minimize risk558. The operation of a tower crane is prohibited:
a) at temperatures below 0°C
b) during a storm with atmospheric discharges
c) at temperatures above 30°Cd) all answers are correct559. The operation of a crane with a basket for transporting people
a) is allowed after obtaining written consent from the construction managerb) is prohibited in all cases
c) is allowed after agreeing on the operating instructions with UDT
d) is allowed unless the wind speed exceeds 5m/s560. The operation of a crane without a valid decision allowing for exploitation is:
a) permissible with the owner's consent
b) prohibited
c) permissible only in exceptional situationsd) decided by the crane operator each time561. Working with a tower crane powered by an electric generator:
a) is prohibited
b) is allowed, but due to the increased risk of electric shock the operator should work in insulating footwearc) is allowedd) is allowed, but due to the reduced power supply the load should be reduced by half562. Wind speed of 18 km/h corresponds to a value of:
a) 6 m/sb) 18 m/s
c) 5 m/s
d) 10 m/s563. Wind speed of 36 km/h corresponds to a value of:
a) 8 m/s
b) 10 m/s
c) 12 m/sd) 6 m/s564. Wind speed of 54 km/h corresponds to a value of:
a) 5.4 m/s
b) 15 m/s
c) 10.8 m/sd) 12 m/s565. The brake test of the lifting mechanism of the tower crane should be performed:
a) at any point of the boom according to the load diagram
b) according to the load diagram as close to the crane tower as possible
c) with a load of 110% of the lifting capacityd) with the maximum load specified in the manufacturer's documentation566. The brake test of the rotation system is performed:
a) without load at nominal speed
b) according to the guidelines contained in the operating manual
c) at the minimum lifting heightd) all answers are correct567. Overloading the crane during operation
a) is prohibited
b) is permissiblec) is permissible but only up to 125% of the allowable loadd) is permissible but only up to 110% of the allowable load568. Overloading the crane means:
a) exceeding the allowable load for a given reach
b) exceeding the allowable wind gust on the cranec) lifting a load not exceeding the nominal weightd) answers a and b are correct569. Before starting work, the limit switches of individual mechanisms should be checked:
a) without load
b) with nominal loadc) checking the operation of limit switches is not the operator's responsibilityd) with 110% overload570. Before starting work with the device, it is necessary to conduct:
a) static testb) dynamic test
c) activities related to checking the control system
d) entry in the device maintenance log571. Before starting work in collision conditions with another crane, the operator is obliged to familiarize themselves with:
a) the instruction for working in collision conditions
b) the crane maintenance instructionc) the BIOZ pland) the noise directive
572. The presented table describes the technical parameters of the mechanism:
a) of the boom liftingb) of the crane travelc) of the trolley travel
d) of the hook lifting
573. Traveling with a hook block with a load outside the work zone / construction site
a) is only possible in the case of technical tests at the request of the UDT inspector
b) is prohibited
c) is possible when the hook is in the upper position and the crane is windedd) is possible under the supervision of the construction manager574. Traveling with a hook block with a load outside the work zone / construction site:
a) is only possible in the case of technical tests at the request of the UDT inspector
b) is prohibited
c) is possible when the hook is in the upper position and the crane is windedd) is possible under the supervision of the construction manager575. Lifting loads is not prohibited over:
a) office roomsb) the armory
c) the structure being erected
d) all answers are correct576. Lifting loads using a crane is allowed:
a) over office buildings on the construction siteb) over construction workers as long as the safety factor of the rope is greater than 8c) outside the construction site if there is a need
d) all answers are incorrect
577. When attempting to lift a bundle of steel with a weight close to the rated capacity, it turned out that the brake of the lifting mechanism is unable to hold such a large load. In this situation, the operator should:
a) lift only loads weighing no more than half of the capacityb) immediately adjust the brake
c) stop work and request the brake to be adjusted by the maintenance technician
d) continue working and request the brake to be adjusted by the maintenance technician578. At negative temperatures, when starting the crane for the lifting mechanism, the first movement we make is:
a) hook down
b) hook upc) hook in any directiond) answers a and c are correct579. Holding the load by the hook operator during its transfer:
a) is permissible
b) is not permissible
c) is permissible if the load or sling is equipped with designated gripsd) is permissible but only with the use of means allowing the load to be given580. Starting the lifting movement
a) should be done at high speed to ensure efficient work execution
b) should be done at minimal speed until the load is lifted off the ground to avoid excessive loads on the structure
c) should be done at minimal speed until a height of 2 m is reached to avoid excessive loads on the structured) can be done at any speed581. The abbreviation DOR stands for:
a) Dedicated Working Equipmentb) Permissible Arm Rotation
c) Permissible Working Load
d) Organizational Documentation of Works582. Checking the zero lock of the control system involves:
a) turning off the line contactor, moving the lifting mechanism lever upwards in all gears and attempting to turn on the contactor
b) setting all mechanisms outside the limit zones, turning off the line contactor, sequentially moving the lever of all mechanisms in all gears and attempting to turn on the contactor
c) turning off the line contactor, moving the rotation mechanism lever to the right and attempting to turn on the contactord) turning off the line contactor, moving the drive mechanism lever to the right and attempting to turn on the contactor583. Functional control levers:
a) should return to neutral positions automatically after releasing pressureb) may not have markings if the operator knows their purposec) should have discernible position indicators
d) answers a and c are correct
584. An anti-collision system is a system:
a) of crane bumpersb) of fencing dangerous zonesc) electronically checking the crane's state after a collision
d) a system preventing collisions
585. Transporting loads exceeding the permissible lifting capacity of the crane is:
a) permissible only towards the crane towerb) permissible only up to 125% of the lifting capacityc) prohibited directly above people
d) prohibited
586. Transporting cargo above people is:
a) allowed with special cautionb) allowed using the instruction for strict working conditionsc) prohibited in the absence of a rigger or signalman
d) always prohibited
587. Transporting people on cargo is:
a) prohibited
b) allowed with the consent of the construction managerc) allowed under the supervision of a designated health and safety employeed) allowed after the operator has developed detailed operating conditions588. The maximum lifting capacity of a crane is a parameter of the technical device directly related to:
a) the maximum reach of the craneb) the maximum volume of the lifted cargo
c) the minimum reach of the crane
d) the product of the mass and volume of the lifted cargo589. A fault threatening safety, during which it is forbidden to operate the crane is:
a) ineffectiveness of the lifting mechanism brakeb) ineffectiveness of the slewing mechanism brakec) lack of an audible signal
d) all answers are correct
590. During construction work using a crane, the minimum distance from the furthest point of the technical device along with the cargo must be maintained as follows:
a) 30m from the overhead power line with a rated voltage above 110kVb) 5m from the conductor of the traction network of the PKP railway line with a voltage of 3000V direct currentc) 3m from the conductor of the traction network of the tram line with a voltage of 660V direct current
d) all answers are correct
591. How can a pin be secured against falling out:
a) using cotter pins, nuts, dowels or rings
b) does not require securingc) using a welded connectiond) using a riveted connection592. How does an increase in the number of rope strands affect the operating characteristics of a crane?
a) reduces the crane's lifting capacity and simultaneously reduces the speed of the moved block
b) increases the crane's lifting capacity and simultaneously reduces the speed of the moved block
c) reduces the crane's lifting capacity and simultaneously increases the speed of the moved blockd) increases the crane's lifting capacity and simultaneously increases the speed of the moved block593. In which cases is it required to anchor the crane after finishing work:
a) always after finishing work
b) collision of the crane's boom with an obstaclec) rotation of the boom over a power lined) answer b and c is correct594. In which position should the block be left after finishing work during winter?
a) at the upper limit switch of the lifting mechanism and at the limit switch of the boom away from it,
b) half a meter from the upper limit switch of the lifting mechanism and the limit switch at the beginning of the boom or as stated in the operating instructions
c) at the lower limit switch of the lifting mechanism in the middle of the boom, hook attached to the nominal load on the ground,d) in any position, provided a white warning flag is placed on the hook
595. Based on the presented table, indicate the maximum speed of the hook lifting mechanism:
a) 10.6 m/minb) 35.0 m/min
c) 70.0 m/min
d) 17.5 m/min
596. Based on the presented table, indicate the maximum lifting speed of the hook mechanism:
a) 35 m/minb) 16 m/minc) 31 m/min
d) 65 m/min
597. Based on the presented table, indicate in which configuration of the crane the lifting speed of the hook mechanism is the highest:
a) block with fourfold wrapping
b) diameter of the rope drum 240 mm
c) weight of the lifted load 1 td) all answers are incorrect598. Based on the presented table, indicate in which configuration of the crane the lifting speed of the hook mechanism is the highest:
a) block with double wrappingb) operation in any assembly version of the boomc) weight of the lifted load 1.5 t
d) all answers are correct
599. Based on the presented diagram, determine at what outreach the load limiter of the crane with a boom length of 50 m and a load of 5570 kg will disable so-called dangerous movements:
a) 15 mb) 17 m
c) 23 m
d) 27 m
600. Based on the presented diagram, determine at what outreach the load limiter of the crane with a boom length of 50 m and a load of 4630 kg will disable so-called dangerous movements:
a) 32 m
b) 27 m
c) 20 md) 11 m
601. Based on the presented drawing, determine what the maximum speed of the unloaded lifting mechanism is with quadruple rigging
a) 30 m/min
b) 15 m/minc) 3 m/mind) 6 m/min602. Based on the presented drawing, determine what the maximum speed of the unloaded lifting mechanism is with double rigging
a) 30 m/minb) 15 m/minc) 20/40 m
d) 60 m/min
603. Based on the presented drawing, indicate which rigging method has the lowest lifting speed:
a) Fig 1b) Fig 2c) Fig 3
d) Fig 4
604. Based on the presented drawing, indicate which rigging method has the lowest lifting capacity:
a) Fig 1
b) Fig 2c) Fig 3d) Fig 4605. In the event of a brake failure of the lifting mechanism and uncontrolled descent of the load, the operator should:
a) engage the lifting mechanism upwards and activate the sound signal warning of dangerb) press the STOP button
c) engage the lifting mechanism downwards and activate the sound signal warning of danger
d) activate the zero lock606. In the absence of manufacturer guidelines regarding the preparation of the ground for a quick-assembly crane, attention should be paid to:
a) the possibility of the crane's foot sinking (the ground should be hardened to ensure its stability)b) consider the possibility of the crane moving and use anti-slip ground or padsc) the crane is adapted to work in any terrain
d) answers a and b are correct
607. If the construction does not provide the safety measures listed in the work instruction in a conflicting location (e.g.: safety lines, radios), the crane operator should:
a) refuse to operate the crane
b) continue working as this document does not apply to him – it is a matter for the health and safety inspectorc) continue working if he believes it does not threaten safetyd) continue working and notify health and safety or the construction manager608. In the event of a load falling due to a sudden brake failure of the lifting mechanism, one should:
a) activate the lifting mechanism upwardsb) press the emergency stop switch
c) activate the lifting mechanism downwards
d) none of the answers is correct609. In the case of conflicting work of two cranes on the construction site, priority of work is given to:
a) always the higher craneb) the crane indicated in the protocol by the UDT inspector
c) the crane indicated in the safe work instruction
d) always the lower crane610. In the case of conflicting work of two cranes on the construction site, priority of work is given to:
a) always the higher craneb) the crane indicated in the protocol by the UDT inspector
c) the crane indicated in the safe work instruction
d) always the lower crane611. In the case of swinging the load, the operator should:
a) press the STOP buttonb) ask the rigger to catch the loadc) cease operation of the technical device
d) make movements aimed at damping the load's swings
612. In the case of excessive broken wires in the power line, the operator:
a) can continue working provided that the weight of the lifted loads is reducedb) stops the crane operationc) informs the supervisor about the identified non-compliance
d) answers b and c are correct
613. In the case of soil loss due to rainfall under one of the support points of the cross base of the tower crane, the operator should:
a) take no action as the crane is still supported on three points ensuring its stability and continue working
b) immediately stop work and report the situation to the operator and the site manager
c) fill the voids with available rubble and continue workingd) continue working by directing the boom in the opposite direction to the undermined support point614. In the case of damage to a fragment of the crane's lightning protection system, the operator is obliged to:
a) stop the crane operationb) inform the employer about the damage to the aforementioned elementc) inform the site manager about the suspension of crane operation
d) all answers are correct
615. In the case of a leak from the actuator used for deploying the tower of the hydraulic quick-mounting crane, the operator:
a) ceases operation as the crane is inoperativeb) reports this fact to the maintenance personnel and continues working with the crane but only until the end of the current shiftc) continues working with the crane as the leak from the actuator used for raising the tower does not affect the safety of the already set up crane
d) continues working while paying attention to whether the leak poses a threat
616. In the event of immobilization (failure) of a technical device with a raised load, one should:
a) immediately leave the operator's cabin to inform the supervisor
b) take actions to secure the device and the load, considering the danger zone within the load outline
c) independently determine the cause of the failure and make repairsd) inform the technical supervision authority617. In the event of loss of communication between the operator and the hook operator, one should:
a) immediately stop workb) immediately lower the loadc) not take further actions until communication with the hook operator is reestablished
d) answers a and c are correct
618. In the case of agreed movement of a concrete container with a platform for the operator with the appropriate technical supervision unit, the total mass of the lifted load (including people) should not exceed:
a) 1/2 of the crane's lifting capacity under planned working conditionsb) 1/3 of the crane's lifting capacity under planned working conditions
c) 2/3 of the crane's lifting capacity under planned working conditions
d) the nominal lifting capacity of the crane619. In the case of agreed use of baskets for transporting people with the appropriate technical supervision unit, the total mass of the lifted load (including people and equipment) should not exceed:
a) 1/4 of the crane's lifting capacity under planned working conditions
b) 1/2 of the crane's lifting capacity under planned working conditions
c) 1/3 of the crane's lifting capacity under planned working conditionsd) the nominal lifting capacity of the crane620. In the case of agreed use of baskets for transporting people with the appropriate technical supervision unit, what is the permissible wind speed during the operation of the basket:
a) 7 m/s (25km/h)
b) 10 m/s (36 km/h)c) 12 m/s (43 km/h)d) 15 m/s (54 km/h)621. In the event of precipitation preventing the safe transport of the load, the operator should:
a) immediately stop workb) secure the crane according to the operating instructionsc) not take any further actions until visibility improves
d) all answers are correct
622. In the event of gusts of wind preventing the safe transport of the load, the operator should:
a) immediately stop workb) secure the crane according to the operating instructionsc) not take any further actions until conditions improve
d) all answers are correct
623. In the event of pendulum movement of the load attached to the tower crane with a hoist, one should:
a) lower the load to the ground
b) perform movement of the mechanism in accordance with the direction of load movement to reduce the amplitude of oscillations
c) perform lifting movement in the direction of "up" to reduce the amplitude of oscillationsd) in every case, one should wait until the oscillations of the load cease624. In the event of atmospheric discharges preventing the safe transport of the load, the operator should:
a) only perform urgent transport workb) secure the crane according to the operating instructionsc) not take any further actions until conditions improve
d) answers b and c are correct
625. In the event of noticing a crack in the steel structure of the crane, the operator should:
a) stop work, notify the supervisor and the National Labor Inspectorate
b) stop work, notify the supervisor and request an inspection of the crane's condition by the maintenance technician
c) continue working at minimal working speedsd) stop work, notify the supervisor and request welding of the crack626. In the case of a change in the length of the tower crane's boom
a) UDT inspection is not necessary
b) the crane can only be operated after UDT inspection and obtaining a decision allowing operationc) the previous decision loses validityd) the operator should document it in the maintenance log627. In the case of increased brake slip in the lifting mechanism, the operator should:
a) stop working with the crane
b) correct the gap between the disc and the friction liningc) operate with a reduced load capacity of 50%d) none of the answers is correct628. As part of the assessment of the correctness of the crane's positioning, the operator checks:
a) the hardness of the groundb) the type and kind of cross member (for compliance with the assembly protocol)c) whether there have been changes in the crane's positioning caused by variable atmospheric factors
d) answers b and c are correct
629. As part of the assessment of the correctness of the ballast, the crane operator checks:
a) the weight of the ballast (for compliance with the assembly protocol)b) the correctness of the arrangement and securing of the ballastc) the condition of the ballast for cracks and damages
d) all answers are correct
630. As part of the assessment of the technical condition of the crane's control box, the operator should check:
a) whether all control buttons for the crane's movements are white
b) whether all control buttons for the crane's movements return to the starting position after pressure is released
c) whether all self-returning control buttons protrude above the control box housingd) all answers are correct631. As part of the assessment of the technical condition of the crane control panel, the operator should check:
a) the maximum deflection value of the control levers
b) the correctness of the markings of the control panel elements
c) the setting values of the time switches that activate individual speedsd) all answers are correct632. In a situation where the lifted load is slightly frozen to the ground, the crane operator:
a) gently jerks to try to lift the load until it detaches from the groundb) lifts the load at the highest lifting speedc) moves the crane's boom sideways to detach it from the ground
d) refuses to lift the load frozen to the ground
633. In a situation where the movements of the crane are opposite to the markings of the control levers, the operator:
a) can continue working by remembering the control directions but not longer than until the end of the shift
b) should refuse to work until the crane maintainer brings the movements in line with the markings of the levers
c) should change the order of the power supply phasesd) should make changes to the markings of the control panel634. Under operating conditions, the load on the ground on which the crane is set depends on:
a) the self-weight of the crane, the weight of the ballast, the diameter of the rope, the length of the boom
b) the self-weight of the crane, the weight of the ballast, the weight of the load, dynamic forces caused by the movement of the crane and the lifted load
c) depends on the density of the ground/soild) the self-weight of the crane, wind load during operation, the size of the hook block635. Large-sized load oscillations should be prevented by:
a) using safety ropes attached to the load
b) directly holding the load by several peoplec) transporting the load in direct contact with surrounding elementsd) using machines working on the construction site636. The safe working distance of cranes from power lines specified in national regulations depends on:
a) rated voltage of the line
b) current of the linec) power of the lined) resistance of the line wires637. The operator when approaching the tower or the end of the boom:
a) can hit the buffer at low speed
b) should stop at a distance from the buffer according to the operating instructions
c) should hit the buffer if not loadedd) all answers are correct638. Entries in the crane maintenance log are made by:
a) UDT inspector after conducting a periodic inspectionb) the maintainer only after inspecting the cranec) the operator after inspecting the crane
d) the maintainer after performing any action on the crane
639. Identify the correct description of the below drawing
a) 1 - turn right, 2 - turn left, 3 - slowly, 4 - quickly, 5 - just above the ground, 6 - stopb) 1 - turn left, 2 - turn right, 3 - just above the ground, 4 - quickly, 5 - to the right, 6 - stopc) 1 - lift, 2 - rotate, 3 - to the right, 4 - quickly, 5 - just above the ground, 6 - stop
d) 1 - up, 2 - down, 3 - slowly, 4 - move away, 5 - stop, 6 - STOP "danger"
640. The safety switch "STOP" is used for:
a) sudden safe stopping of the crane operationb) normal stopping of the engine operationc) protects against starting the crane by unauthorized persons
d) all answers are incorrect
641. Removing elements from the ground using a tower crane is:
a) allowedb) allowed only with special gripping slings
c) allowed with the consent of a geologist familiar with the anchoring depth of the removed object
d) prohibited642. What documentation should the operator familiarize themselves with regarding the operational possibilities of the crane
a) valid UDT decisionb) crane operation manualc) health and safety instructions applicable on the construction site
d) all answers are correct
643. From the table presented below, it follows that:
a) the lifting mechanism's hook working speed is constantb) the lifting mechanism's hook working speed depends solely on the weight of the load suspended on the hook
c) the hook lifting mechanism is four-speed
d) the length of the lifting mechanism's rope is more than 440m644. The correct way to hook the load is the responsibility of:
a) crane operator
b) hookman
c) signalmand) construction manager645. Securing the throat of the hook:
a) is used depending on the needs
b) is the basic protection against the accidental unhooking of the sling
c) is the basic protection against excessive bending of the hookd) is the basic protection against excessive wear of the gripping part of the hook646. The protection of the hook nut against unscrewing can be:
a) expansion pin
b) groin weldc) butt weldd) the hook nut does not require protection647. The operation of the limit switch of the lifting mechanism upwards during the lifting of a load means:
a) reaching the highest possible position of the hook blockb) exceeding the permissible load capacity of the cranec) does not allow the lifting mechanism to operate in the opposite direction
d) answers a and c are correct
648. The operation of the moment limiter in a gantry crane should cause:
a) the shutdown of all working movements
b) the shutdown of the movement of the gantry in the direction of increasing reach
c) the shutdown of the movement of the gantry in the direction of decreasing reachd) the shutdown of the lowering movement of the hook649. The operation of the limit switch upwards in the lifting mechanism of the crane means:
a) the end of the rope on the winch drumb) the maximum number of layers of rope on the winch drum
c) the hook block reaching the extreme upper position
d) the inability to lower the load650. Assuming that the load capacity of the crane is 8 tons, and the threshold for the operation of the load limiter is 110% of the rated load, at what load mass will the load limiter operate?
a) 8 tb) 7.2 t
c) 8.8 t
d) 8.1 t651. The scope of daily maintenance of the crane before starting work is determined by:
a) the construction managerb) the UDT inspector
c) the crane manufacturer
d) the operator652. Ensuring proper operation and maintenance of the crane is the responsibility of:
a) the construction manager at which the crane is workingb) the construction supervision inspector at which the crane is workingc) the crane operator
d) the crane operator
653. Indicate the correct meaning of the signal presented by the signalman:
a) start – attention beginning of directing
b) stop, pause – end of movement
c) lift upd) movement to the right of the signalman
654. Indicate the correct meaning of the signal presented by the signalman:
a) stop – halt in case of emergency
b) lift upc) stop, pause – end of movementd) start – attention beginning of directing655. Changing the number of rope strands of the hook block of the tower crane from 2 strands to 4 strands of rope will result in:
a) increasing the maximum lifting speed
b) decreasing the maximum lifting speed
c) will not cause a change in maximum lifting speedd) will decrease the rated load656. Changing the number of rope strands of the hook block of a tower crane from 2 strands to 4 strands will result in:
a) increasing the maximum working load
b) decreasing the maximum working loadc) will not cause a change in the working loadd) increasing the maximum lifting speed657. Changing the rope arrangement from 2 to 4 strands causes
a) only an increase in load capacityb) a decrease in load capacityc) does not cause changes in the parameters of the technical device
d) an increase in load capacity with a simultaneous decrease in the lifting/lowering speed of the block
658. The change in the reach of tower cranes can be achieved by:
a) the crane rotation mechanism
b) the mechanism for changing the angle of the boom position
c) the crane travel mechanismd) the hook lifting mechanism659. The change in the reach of the upper rotating tower crane occurs through:
a) the boom tilting
b) the travel of the trolleyc) the travel of the craned) changing the rigging660. Reducing additional inertia forces affecting the stability of the crane can be achieved by:
a) oblique pulling of lifted loadsb) introducing swinging loads on the hook
c) gradual, gentle, smooth way of engaging individual working movements of the crane
d) lifting loads with a reduced number of lifting ropes of the lifting mechanism661. The quick-mount tower crane requires after changing location:
a) UDT inspection
b) appropriate entry by the conservator in the maintenance log allowing operation at the given location
c) health and safety permission and the construction manager's approval to workd) answers A and B are correct662. Cranes equipped with more than one control station should:
a) allow simultaneous operation from only two stations
b) have appropriate means to prevent simultaneous control from two stations
c) allow simultaneous control from the cabin and remotelyd) allow simultaneous control from all stations
663. Based on the presented load diagram, indicate the maximum load mass that can be lifted at a distance of 23 m with a boom length of 40 m:
a) 4.76 tb) 5.57 tc) 5.72 t
d) 5.88 t
664. Based on the presented load diagram, indicate the maximum reach of the crane with a load mass of 6910 kg with a boom length of 50 m:
a) 19 m
b) 23 mc) 27 md) 15 m
665. For a four-rope block rigging and a boom length of 50m, the distance to which a load of 16t can be moved away from the tower is:
a) 20.0 m
b) 21.5 m
c) 25.0 md) 16.0 t can only be lifted when the hook is in the position closest to the tower
666. What is the reach value [m] of the crane in the configuration of a 60 m boom and with a four-part rigging that has a nominal load capacity of 10t?
a) 9.21
b) 20
c) 3.40d) 23.27
667. What is the load capacity [kg] of the crane at a reach of 30 m for a crane with a maximum boom length of 60.05 m?
a) 11000
b) 3500c) 10400d) 12000668. What is the load capacity [t] of the crane at a reach of 30 m for a crane with a maximum load capacity of 10 t and a boom length of 55 m?
a) 4.10b) 9.85
c) 7.99
d) 24.68669. What are the configurations of boom lengths provided by the manufacturer for this crane?
a) 28.30 m / 32.80 m / 34.80 m
b) 40.64 m / 50.50 m / 60.05 m
c) 40 m / 50 m / 60 md) 10400 m / 7000 m / 3500 m670. If the visualization of the load limiter status is realized by indicator lights and an acoustic signal, then:
a) overload is indicated in the range of 90 - 95% of the load capacity by a yellow indicator light and an intermittent acoustic signal
b) overload is indicated in the range above 100% of the load capacity by a red indicator light and a continuous acoustic signal
c) overload is indicated in the range above 100% of the load capacity by a yellow indicator light and an intermittent acoustic signald) overload is indicated in the range of 90 - 95% of the load capacity by a red indicator light and a continuous acoustic signal671. If the visualization of the load limiter's state is realized by indicators and an acoustic signal then:
a) overload warning is indicated in the range of 90 - 95% of the capacity by a yellow indicator and intermittent acoustic signal
b) overload warning is indicated in the range above 95 - 100% of the capacity by a red indicator and continuous acoustic signal
c) overload warning is indicated in the range above 95 - 100% of the capacity by a yellow indicator and intermittent acoustic signald) overload warning is indicated in the range of 90 - 95% of the capacity by a red indicator and continuous acoustic signal
672. Based on the diagram below, provide the length of the boom and the maximum load that can be lifted at its end by the crane in the version with a boom assembled from four inserts:
a) length 45.0 m - load capacity 1.4 t
b) length 40.0 m - load capacity 1.8 t
c) length 35.0 m - load capacity 2.4 td) length 30.0 m - load capacity 2.9 t
673. Based on the diagram below, indicate what weight the crane can lift in the version with a 65-meter boom at a reach of 52 meters with double reeving:
a) 5.32 t
b) 5.0 tc) 5.57 td) 5.65 t
674. Based on the presented diagram, determine the maximum load capacity of the crane:
a) 1900 kgb) 8000 kgc) 12000 kg
d) 16000 kg
675. Based on the presented load diagram, determine the actual load capacity of the crane for the configuration: rigging 1 strand, boom 45 m, working reach 25 m:
a) 6840 kg
b) 8000 kg
c) 10880 kgd) 16 000 kg
676. Based on the presented lifting diagram, determine the actual lifting capacity of the crane for the configuration: rigging 1 line, boom 55m, working reach 30m:
a) 7160 kg
b) 8000 kgc) 7300 kgd) 12000 kg677. Based on the presented lifting diagram, determine the actual lifting capacity of the crane for the configuration: rigging 2 lines, boom 45m, working reach 25m:
a) 6840 kgb) 8000 kg
c) 10880 kg
d) 16 000 kg678. Based on the presented lifting diagram, determine the actual lifting capacity of the crane for the configuration: rigging 2 lines, boom 55m, working reach 30m:
a) 7160 kgb) 8000 kg
c) 7300 kg
d) 12000 kg
679. Based on the presented lifting characteristics:
a) the maximum reach of the crane is 45 m
b) the maximum reach of the crane is 46.7 mc) the maximum reach of the crane is 40.9 md) the maximum lifting height is 10 m680. Based on the presented lifting characteristics:
a) the maximum lifting capacity of the crane is 5600kg
b) the maximum lifting capacity of the crane is 5400kgc) the maximum lifting capacity of the crane is 2800kgd) the maximum lifting capacity of the crane is 3000kg
681. the below drawing shows a crane:
a) low-rotation, water crane
b) high-rotation, with a luffing boom
c) high-rotation water craned) tower crane in the assembly phase
682. The lifting capacity of the crane with a boom length of 50m at a radius of 30m is:
a) 11.3t
b) 12.0tc) 5.3td) none of the above answers is correct
683. Based on the presented drawing, indicate the correct technical parameters of the crane:
a) lifting capacity - 2125kg; radius - 56m; lifting height - 37.2m
b) lifting capacity - 5t; lifting height - 36.7m; radius - 40m
c) lifting capacity - 5.6t; lifting height - 37.2m; boom - 47.9md) lifting capacity - 5.6t; lifting height - 56m; radius - 7.9m
684. Based on the below drawing, determine the length of the counter boom:
a) 13.2 mb) 5.8 m
c) 10 m
d) 2.5 m
685. Based on the below drawing:
a) the maximum load we can lift is 10 tb) the maximum radius of the crane is 30 mc) the maximum lifting height is 30 m
d) the maximum radius of the crane is 55m
686. Based on the presented table, determine what is the maximum allowable load weight lifted by the crane at a reach of 30 m, if the crane has a boom length of 40 m:
a) 1300 kgb) 1650 kg
c) 1825 kg
d) 1685 kg687. Based on the presented table, determine what is the maximum allowable load weight lifted by the crane at a reach of 31 m, if the crane has a boom length of 35 m:
a) 1800 kgb) 1990 kgc) 2200 kg
d) no possibility to lift weight for such a crane configuration
688. Based on the presented table, determine what is the maximum allowable load weight lifted by the crane at a reach of 33 m, if the crane has a boom length of 35 m:
a) 1600 kg
b) 1800 kg
c) 1990 kgd) 2200 kg689. Based on the presented table of lifting capacities, state what is the maximum load that can be lifted by the crane with a boom length of 37 m, at a reach of 34 m
a) 1600 kg
b) 1700 kg
c) 1800 kgd) no possibility to lift weight for such a crane configuration
690. Based on the presented table of lifting capacities, state what is the maximum load that can be lifted by the crane with a boom length of 47 m, at a reach of 35 m
a) 1940 kgb) 1800 kgc) 1970 kg
d) 2095 kg
691. Based on the presented load table, what is the maximum load that can be lifted by a crane with a boom length of 52m, at a reach of 35m?
a) 1155kgb) 1500kg
c) 1750kg
d) 1240kg
692. Based on the presented load table, at what reach will a properly functioning load limiter of a crane with a boom length of 25m and a load of 1667kg stop so-called dangerous movements:
a) 15 m
b) 17 m
c) 19 md) 16 m693. Based on the presented load table, at what reach will a properly functioning load limiter of a crane with a boom length of 45m and a load of 2.49t stop so-called dangerous movements:
a) 45mb) 35m
c) 32m
d) 30m694. Based on the presented load table, at what reach will a properly functioning load limiter of a crane with a boom length of 50m and a load of 1960kg stop so-called dangerous movements:
a) 45m
b) 35m
c) 32md) 30m
695. Based on the presented table, indicate what the rotation speed of the crane is:
a) 2 r/minb) 1 r/min
c) 0.58 r/min
d) 0.26 r/min696. Based on the presented table, for a crane equipped with a boom length of 35 m, a load capacity of 2000 kg applies to a reach not greater than:
a) 31.87 mb) 26.06 m
c) 30 m
d) 31 m697. Based on the presented table, for a crane equipped with a boom length of 35 m, a load capacity of 2500 kg applies to a reach not greater than:
a) 25 m
b) 26 mc) 26.06 md) 31.87 m698. Based on the presented table, for a crane equipped with a boom length of 40 m, a load capacity of 2000 kg applies to a reach not greater than:
a) 22.48 mb) 25 m
c) 27 m
d) 27.5 m699. Based on the presented table, for a crane equipped with a boom length of 40 m, a load capacity of 2500 kg applies to a reach not greater than:
a) 22 m
b) 22.48 mc) 20.54 md) 27.5 m
700. Based on the presented diagram, determine the maximum load at a 25m reach for a tower crane with a boom length of 45m:
a) 2 t
b) 3.570 t
c) 3.75 kgd) 6000 kg
701. Based on the presented diagram, determine the maximum load at the end of the reach for a tower crane with a boom length of 35.5m:
a) 1.25 t
b) 1160 kgc) 2500 kgd) 2.5 t
702. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 45 m will turn off the so-called dangerous movements with a load of 4760 kg:
a) 15 mb) 25 mc) 23 m
d) 27 m
703. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 40 m will turn off the so-called dangerous movements with a load of 3050 kg:
a) 21 mb) 29 mc) 37 m
d) 40 m
704. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 40 m will turn off the so-called dangerous movements with a load of 6510 kg:
a) 17 m
b) 21 m
c) 25 md) 29 m705. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 45 m will turn off the so-called dangerous movements with a load of 4040 kg:
a) 21 mb) 27 m
c) 31 m
d) 43 m706. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 45 m and a load of 6340 kg will disable so-called dangerous movements:
a) 17 m
b) 21 m
c) 27 md) 31 m707. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 50 m and a load of 6910 kg will disable so-called dangerous movements:
a) 19 m
b) 27 mc) 31 md) 43 m708. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 50 m and a load of 7830 kg will disable so-called dangerous movements:
a) 17 m
b) 21 mc) 29 md) 35 m709. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 55 m and a load of 2670 kg will disable so-called dangerous movements:
a) 23 mb) 29 m
c) 37 m
d) 43 m710. Based on the presented diagram, determine at what reach the load limiter of the crane with a boom length of 55 m and a load of 3080 kg will disable so-called dangerous movements:
a) 17 mb) 25 m
c) 33 m
d) 40 m
711. Based on the presented diagram, specify for what length of the boom the maximum lifting capacity of the crane is available at a distance of 26 meters:
a) 40 mb) 45 m
c) 50 m
d) 55 m712. Based on the presented diagram of lifting, indicate the maximum mass of the load that can be placed at a distance of 22 m (hook block with 4-part rigging):
a) 2200 kg
b) 1723 kg
c) 2106 kgd) 1340 kg
713. Based on the presented diagram of lifting, indicate the maximum mass of the load that can be placed at a distance of 22 m with a boom length of 37 m (hook block with 4-part rigging):
a) 2.2 tb) 2.5 t
c) 2.8 t
d) 2.3 t
714. Based on the presented diagram of lifting, indicate the maximum mass of the load that can be placed at a distance of 30 m with a boom length of 55 m:
a) 3.93 t
b) 5.72 t
c) 3.80 td) 3.33 t715. Based on the presented diagram of lifting, indicate the maximum mass of the load that can be placed at a distance of 33 m with a boom length of 55 m:
a) 3.93 t
b) 2.86 t
c) 3.80 td) 3.33 t716. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 40 m (hook block with 4-part rigging):
a) 957 kg
b) 852 kgc) 800 kgd) all answers are incorrect717. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 40 m with a boom length of 50 m:
a) 3.49 t
b) 2.87 t
c) 5.20 td) 5.72 t718. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 40 m with a boom length of 50 m:
a) 3.49 tb) 2.87 tc) 5.20 t,
d) 4.56 t
719. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 40 m:
a) 2 tb) 3 t
c) 1 t
d) 4 t
720. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 25 m with a boom length of 50 m and 4-part rigging:
a) 3.15 t
b) 3.80 tc) 3.00 td) the distance is beyond the crane's working range721. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 30 m with a boom length of 50 m:
a) 3.15 t
b) 2.50 t
c) 3.00 td) the distance is beyond the crane's working range722. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 35 m with a boom length of 30 m:
a) 2.96 tb) 2.91 tc) 3.00 t
d) the distance is beyond the crane's working range
723. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 35 m with a boom length of 40 m:
a) 3.00 tb) 2.29 t
c) 2.36 t
d) the distance is beyond the crane's working range724. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 35 m with a boom length of 40 m:
a) 3.00 t
b) 2.16 t
c) 2.36 td) the distance is beyond the crane's working range725. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 35 m with a boom length of 45 m:
a) 3.00 t
b) 2.26 t
c) 2.19 td) the distance is beyond the crane's working range726. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 40 m with a boom length of 50 m and a 2-part rigging:
a) 1.70 t
b) 1.77 t
c) 1.99 td) 1.92 t727. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 40 m with a boom length of 50 m:
a) 1.70 t
b) 1.77 tc) 1.99 td) 1.92 t728. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 45 m with a boom length of 55 m:
a) 3.00 tb) 1.17 t
c) 1.26 t
d) the distance is beyond the crane's working range729. Based on the presented lifting diagram, indicate the maximum lifting capacity of the crane for a boom length of 40 m:
a) 3.00 t
b) 6.00 t
c) 4.57 td) 1.99 t730. Based on the presented lifting diagram, indicate the maximum lifting capacity of the crane with a boom length of 55 m and two parts of the block rope:
a) 3.00 t
b) 3.77 tc) 6.00 td) 0.93 t731. Based on the presented lifting diagram, indicate the maximum lifting capacity of the crane:
a) 3.00 tb) 5.00 t
c) 6.00 t
d) 12.00 t732. Based on the presented lifting diagram, indicate the maximum reach of the crane with a nominal load of 8 t at a boom length of 55 m:
a) 15.0 m
b) 14.5 m
c) 16.6 md) 17.4 m733. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 1.34 t (hook block with 2-part rigging):
a) 22 mb) 24 mc) 28 m
d) 30 m
734. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 2.5 t at a boom length of 42 m (hook block with 2-part rigging):
a) 22 m
b) 24 mc) 28 md) 17 m
735. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 2500 kg (hook block with 2-part rigging):
a) 14 mb) 20 mc) 24 m
d) the indicated value is greater than the permissible lifting capacity of the crane
736. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 2790 kg at a boom length of 40 m (hook block with 2-part rigging):
a) 20 mb) 25 m
c) 30 m
d) 35 m737. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 3000 kg at a boom length of 45 m (hook block with 2-part rigging):
a) 20 mb) 27.85 m
c) 25 m
d) a load of 3000 kg is greater than the permissible lifting capacity of the crane738. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 3490 kg at a boom length of 45 m:
a) 43 mb) 33 mc) 40 m
d) 35 m
739. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 3700 kg at a boom length of 42 m (hook block with 2-part rigging):
a) 17 mb) 22 mc) 27 m
d) a load of 3700 kg is greater than the permissible lifting capacity of the crane
740. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 4000 kg:
a) 12.42 mb) 8.26 m
c) 10.96 m
d) 20.00 m
741. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 5.40 t at a boom length of 50 m (hook block with 3-part rigging):
a) 30.0 m
b) 35.0 m
c) 40.0 md) 45.0 m742. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 6.18 t at a boom length of 40 m (hook block with 4-part rigging):
a) 43 m
b) 35 m
c) 40 md) 33 m
743. Based on the presented lifting diagram, indicate to what value of reach maximum lifting capacity can be achieved. Crane configuration: four-part rigging, boom 60m:
a) 60mb) 30mc) 20m
d) 19.51m
744. Based on the presented lifting diagram, indicate what maximum load mass can be lifted with quadruple rigging of the hook block:
a) 8 tb) 12 t
c) 16 t
d) 15 t745. Based on the presented lifting diagram, indicate what maximum load mass can be lifted with double rigging of the hook block:
a) 8 t
b) 12 tc) 16 td) 15 t
746. Based on the presented lifting diagram, indicate the maximum load weight that can be lifted with double rigging of the hook block:
a) 3.5b) 3 tc) 4 t
d) 2.5 t
747. Based on the presented lifting diagram, indicate the maximum load weight that can be lifted with double rigging of the hook block:
a) 3.5b) 3 tc) 4 t
d) 2.0 t
748. Based on the presented lifting diagram, indicate the maximum load weight that can be lifted with triple rigging of the hook block:
a) 8 t
b) 12 t
c) 16 td) 15 t749. Based on the presented lifting diagram, indicate the maximum load weight that can be lifted with quadruple rigging of the hook block:
a) 3.5
b) 4 t
c) 3 td) 2.5 t750. Based on the presented lifting diagram, indicate the maximum load weight that can be delivered over a distance of 19 m with a boom length of 45 m:
a) 5.93 tb) 6.91 t
c) 7.1 t
d) 8.0 t751. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 25 m with a boom length of 50 m:
a) 8.0 t
b) 5.06 t
c) 4.5 td) 5.2 t752. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 27 m with a boom length of 55 m:
a) 4.76 t
b) 3.94 t
c) 3.33 td) 2.67 t753. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 31 m with a boom length of 45 m:
a) 3.33 tb) 3.93 t
c) 4.04 t
d) 4.16 t754. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 31 m with a boom length of 50 m:
a) 3.93 t
b) 3.33 tc) 3.08 td) 3.39 t755. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 35 m with a boom length of 55 m:
a) 3.61 tb) 3.08 t
c) 2.86 t
d) 2.41 t756. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance of 37 m with a boom length of 40 m:
a) 2.67 tb) 3.17 tc) 3.26 t
d) 3.36 t
757. Based on the presented lifting diagram, indicate the maximum load mass that can be lifted at maximum reach:
a) 970 kgb) 1100 kg
c) 790 kg
d) 620 kg758. Based on the presented lifting diagram, indicate the maximum load mass that can be lifted with quadruple rigging of the hook block:
a) 3.5b) 3 t
c) 4 t
d) 2.5 t
759. Based on the presented lifting diagram, indicate the maximum load mass that can be transported at a distance of 10 m, with a boom length of L6. The load transport is carried out using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) load transport in this range is not possibleb) 4772 kg
c) 4500 kg
d) 4272 kg
760. Based on the presented lifting diagram, indicate the maximum load mass that can be transported at a distance of 15 m, with a boom length of L4. The load transport is carried out using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 5000 kg
b) 4500 kg
c) 4772 kgd) none of the answers is correct761. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 18 m, with a boom length of L4. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 5000 kgb) 4000 kg
c) 4500 kg
d) 4202 kg762. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 18 m, with a boom length of L6. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 4772 kgb) 4372 kg
c) 3000 kg
d) 2600 kg763. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 18 m, with a boom length of L6. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 4500 kgb) 4000 kg
c) 4272 kg
d) 4772 kg764. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 19 m, with a boom length of L1. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 5000 kgb) 4000 kg
c) 4500 kg
d) transporting the load over this distance is not possible765. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 19 m, with a boom length of L4. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 4925 kgb) 4425 kgc) 5000 kg
d) 4500 kg
766. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 20 m, with a boom length of L5. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3400 kgb) 4167 kgc) 4567 kg
d) 3000 kg
767. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 20 m, with a boom length of L6. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 4230 kg
b) 3730 kg
c) 4000 kgd) 3500 kg768. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 21 m, with a boom length of L1. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 5000 kg
b) 4500 kg
c) 4111 kgd) 4611 kg769. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 23 m, with a boom length of L4. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3000 kg
b) 3802 kgc) 3400 kgd) 4202 kg770. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 23 m, with a boom length of L4. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 4500 kgb) 4000 kgc) 4202 kg
d) 3702 kg
771. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 23.5 m, with a boom length of L1. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 4100 kg
b) 3000 kg
c) 4500 kgd) 2600 kg772. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 23.5 m, with a boom length of L1. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 4500kg, mass of the traverse - 500 kg):
a) 4000 kg
b) 4500 kgc) 4611 kgd) 4111 kg773. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 25 m, with a boom length of L2. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3668 kgb) 4068 kgc) 3400 kg
d) 3000 kg
774. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 28 m, with a boom length of L2. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3173 kg
b) 3000 kg
c) 2600 kgd) 3573 kg775. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 28 m, with a boom length of L3. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3101 kg
b) 3000 kg
c) 2600 kgd) 3501 kg776. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 28 m, with a boom length of L4. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3352 kg
b) 2952 kg
c) 3000 kgd) 2600 kg777. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 28 m, with a boom length of L5. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3100 kgb) 3000 kgc) 2600 kg
d) 2700 kg
778. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 28 m, with a boom length of L6. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 2462 kg
b) 2862 kgc) 3000 kgd) 2600 kg779. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 30 m, with a boom length of L2. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3300 kgb) 3000 kg
c) 2900 kg
d) 2600 kg780. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 30 m, with a boom length of L3. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 3233 kgb) 3000 kg
c) 2833 kg
d) 2600 kg781. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 33 m, with a boom length of L3. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 2700 kgb) 2893 kg
c) 2493 kg
d) 3000 kg782. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 35 m, with a boom length of L4. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 2200 kgb) 2581 kg
c) 2181 kg
d) 1800 kg783. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 40 m, with a boom length of L5. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 2025 kg
b) 1625 kg
c) 1750 kgd) 3000 kg784. Based on the presented lifting diagram, indicate the maximum load mass that can be transported over a distance of 45 m, with a boom length of L6. The load is transported using a beam traverse suspended on the crane hook (DOR of the traverse - 3000 kg, mass of the traverse - 400 kg):
a) 1604 kgb) 3000 kg
c) 1204 kg
d) 1400 kg
785. Based on the presented lifting diagram, indicate the maximum load mass that can be delivered over a distance (reach) of 15 m. Crane configuration: boom 30m:
a) 10t
b) 5.5tc) 3td) 1.6t
786. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 15 m. Crane configuration: boom 40m:
a) 10t
b) 5.5tc) 3td) 1.6t
787. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 15 m. Crane configuration: boom 45m, four-part rigging:
a) 8tb) 5tc) 3.45t
d) 0 - there is no possibility to work with any load
788. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 20 m. Crane configuration: boom 55m, four-part rigging:
a) 8t
b) 7.02t
c) 4td) 2.4t789. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 20 m. Crane configuration: boom 55m, two-part rigging:
a) 8tb) 7.02t
c) 4t
d) 2.4t790. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 20 m. Crane configuration: boom 65m, four-part rigging:
a) 6tb) 5.15t
c) 4.70t
d) 3t791. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 25 m. Crane configuration: boom 40m:
a) 10t
b) 5.5t
c) 3td) 1.6t792. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 25 m. Crane configuration: boom 55m:
a) 10tb) 5.8t
c) 5t
d) 1.6t
793. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 25 m. Crane configuration: boom 60m, four-part rigging:
a) 16t
b) 11.45t
c) 8td) 3.78t794. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 25 m. Crane configuration: boom 60m, two-part rigging:
a) 16tb) 11.45t
c) 8t
d) 3.78t
795. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 25 m. Crane configuration: boom 65m, four-part rigging:
a) 6tb) 4.70t
c) 3.61t
d) 2.89t796. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 26 m. Crane configuration: boom 35m, four-part rigging:
a) 6t
b) 5.14t
c) 4.3td) 3t797. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 26 m. Crane configuration: boom 35m, two-part rigging:
a) 6tb) 5.14tc) 4.3t
d) 3t
798. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 28 m. Crane configuration: boom 60m, four-part rigging:
a) 8t
b) 4.38t
c) 4td) 2t799. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 30 m. Crane configuration: boom 45m, four-part rigging:
a) 8t
b) 4.97t
c) 4td) 3.45t800. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 30 m. Crane configuration: boom 50m, four-part rigging:
a) 8t
b) 4.71t
c) 4td) 2.90t801. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 30 m. Crane configuration: boom 60m, four-part rigging:
a) 8t
b) 4t
c) 2td) 0 - no possibility to work with any load802. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 35 m. Crane configuration: boom 50m, four-part rigging:
a) 16t
b) 8.41t
c) 8td) 5.50t803. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 35 m. Crane configuration: boom 50m, two-part rigging:
a) 8t
b) 4t
c) 3.46td) 2.90t804. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 35 m. Crane configuration: boom 50m, two-part rigging:
a) 16tb) 8.41t
c) 8t
d) 5.50t805. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 40 m. Crane configuration: boom 55m, two-part rigging:
a) 8tb) 4t
c) 3.46t
d) 2.40t806. Based on the presented lifting diagram, indicate the maximum load mass that can be provided at a distance (reach) of 50 m. Crane configuration: boom 55m, two-part rigging:
a) 8tb) 4tc) 3.46t
d) 2.68t
807. Based on the presented lifting diagram, indicate the maximum load mass that can be moved at a distance of 35 m with a boom length of 40 m:
a) 3050 kgb) 1750 kg
c) 1590 kg
d) 1350 kg808. Based on the presented lifting diagram, indicate the maximum lifting capacity of the crane with two-part rigging:
a) 6tb) 5.15t
c) 3t
d) 1.15t
809. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load mass of 1.6 t:
a) 18 mb) 20 m
c) 25 m
d) 28 m
810. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load mass of 2 t:
a) 21 m
b) 25 mc) 24 md) 18 m811. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 2190 kg at a boom length of 55 m:
a) 40 m
b) 43 m
c) 45 md) 47 m812. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 3260 kg at a boom length of 45 m:
a) 33 mb) 35 m
c) 37 m
d) 40 m813. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 3330 kg at a boom length of 55 m:
a) 25 mb) 29 m
c) 31 m
d) 33 m814. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 4500 kg at a boom length of 40 m:
a) 27 m
b) 29 m
c) 31 md) 33 m815. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 5060 kg at a boom length of 50 m:
a) 23 m
b) 25 m
c) 29 md) 31 m816. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 6340 kg at a boom length of 45 m:
a) 21 m
b) 19 mc) 23 md) 27 m817. Based on the presented lifting diagram, indicate the maximum reach of the crane with a load of 6510 kg at a boom length of 40 m:
a) 17 mb) 19 m
c) 21 m
d) 23 m818. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) rated lifting capacity 10t and minimum reach 2.5m
b) rated lifting capacity 10t and minimum reach 14.3,c) rated lifting capacity 5t and maximum reach 15.9md) rated lifting capacity 5t and maximum reach 55m
819. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) answers B and C are correct
b) maximum reach 70m
c) maximum lifting capacity 6 td) minimum reach 12m
820. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum reach of the crane 45 mb) maximum lifting capacity 5600 kgc) operation in full rotation range
d) all answers are correct
821. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum achievable assembly reach 55 m
b) maximum lifting capacity 3 tc) maximum lifting capacity with double rigging of the hook blockd) all answers are correct822. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum achievable assembly reach 40 m
b) maximum lifting capacity 8 t
c) working in the rotation range r = 56.4°d) all answers are correct823. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum achievable assembly reach 55 mb) maximum lifting capacity 8 tc) maximum lifting capacity with quadruple rigging of the hook block
d) all answers are correct
824. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum lifting capacity 8 tb) maximum lifting height 23.4 m
c) maximum achievable assembly reach 55 m
d) all answers are correct825. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum achievable assembly reach 50 m
b) maximum lifting capacity 16 t
c) maximum lifting capacity with double rigging of the hook blockd) all answers are correct826. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum achievable assembly reach 55 m
b) maximum lifting capacity 4 t
c) maximum lifting capacity with quadruple block riggingd) all answers are correct827. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum lifting capacity 4 tb) maximum lifting capacity with quadruple block riggingc) maximum achievable assembly reach 42 m
d) all answers are correct
828. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum reach 45 m
b) maximum lifting capacity of the crane 4000 kg
c) maximum lifting capacity with double block riggingd) all answers are correct829. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum reach 47 mb) maximum lifting capacity 4 tc) maximum lifting capacity with quadruple block rigging
d) all answers are correct
830. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum reach 50 mb) maximum lifting capacity 2 tc) maximum lifting capacity with double block rigging
d) all answers are incorrect
831. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum reach 45 m
b) maximum lifting capacity of the crane at a reach of 10.96 m
c) maximum lifting capacity with double rigging of the hook blockd) all answers are correct
832. Based on the presented lifting diagram of the crane, indicate the correct answer:
a) for a boom of 65m, at a distance of 60 m, we can lift 3500kgb) for a boom of 75m, at a distance of 75 m, it is not possible to lift 1700kgc) for a boom of 55m, at a distance of 25m, we can lift 12000kg
d) for a boom of 50m, at a distance of 24.5m, we can lift 12000kg
833. Based on the presented lifting diagram, indicate the correct working parameters of the crane:
a) maximum reach of the crane 30 mb) maximum lifting capacity is achieved with double rigging of the hook block
c) maximum lifting capacity 4 t
d) all answers are correct
834. Based on the presented lifting diagram, indicate the correct parameters of the crane:
a) for a boom of 55m, the maximum lifting capacity is 8000 kg,
b) for a boom of 50m, at a distance of 17m, the maximum lifting capacity is 8000 kgc) for a boom of 55m, the maximum lifting capacity is 7730 kgd) for a boom of 40m, the maximum lifting capacity at 45m is 2550 kg,835. Based on the presented diagram, indicate the maximum load mass that can be provided at a distance of 10 m:
a) 2.8 t
b) 4 t
c) 1.6 td) 1 t836. Based on the presented diagram, indicate the maximum load mass that can be applied at a distance of 15 m:
a) 1.4 tb) 4 t
c) 2.8 t
d) 1.2 t837. Based on the presented diagram, indicate the maximum load mass that can be applied at a distance of 45 m:
a) 0.8 t
b) 1.4 tc) 2 td) 3 t
838. Based on the presented diagram, indicate the maximum load mass that can be applied at a distance of 27 meters with a boom length of 30 meters:
a) 23130 kg
b) 23580 kg
c) 24000 kgd) no data to determine
839. Based on the presented diagram, indicate the maximum load mass that can be applied at a distance of 30 meters with a boom length of 55 meters:
a) 4800 kg
b) 3800 kg
c) 4200 kgd) 4000 kg
840. Based on the presented diagram, indicate the maximum load mass that can be applied at a distance of 40 meters with a boom length of 52.5 meters:
a) 2800 kgb) 3200 kg
c) 3400 kg
d) 3700 kg
841. Based on the presented diagram, indicate the maximum load for the version of the boom L=39.2 m and the number of rope strands n=2 at a reach of 29 m:
a) 1900 kg
b) 2720 kg
c) 3000 kgd) 1770 kg842. Based on the presented diagram, indicate the distance at which a load with maximum lifting capacity can be placed for a crane equipped with a boom of 35 meters in length:
a) 25 m
b) 26.7 mc) 27.2 md) 27.5 m
843. Based on the presented diagram, indicate the distance at which a load with maximum lifting capacity can be placed for a crane equipped with a boom of 55 meters in length:
a) 17 mb) 18 m
c) 20 m
d) no data available to determine844. Based on the presented diagram, indicate the distance at which a load weighing 3800 kg can be placed when the crane is equipped with a 45-meter boom:
a) 34 mb) 36 mc) 40 m
d) 38 m
845. Based on the presented diagram, indicate the distance at which a load weighing 4400 kg can be placed when the crane is equipped with a 50-meter boom:
a) 32.5 m
b) 35 m
c) 37.5 md) 47.5 m
846. Based on the presented drawing, indicate at what reach a properly functioning load limiter of the crane in Variant II with a load of 4000kg will stop so-called dangerous movements:
a) 16.5mb) 30mc) 25m
d) 20m
847. Based on the presented work graph, determine the maximum mass of the load that can be lifted at a distance of 15.0 m from the crane tower:
a) 7.84 tb) 1.9 t
c) 8.0 t
d) 3.4 t
848. Based on the presented work graph, determine the maximum mass of the load that can be delivered at a distance of 40m, with a boom length of 60m:
a) 4.33 t
b) 6.310 t
c) 7.60 td) 6.79 t
849. Based on the presented lifting graph, indicate at what reach a properly functioning load limiter of the crane with a load of 3.0t will stop so-called dangerous movements at a boom radius of 46.4m:
a) 40.0 mb) 32.0 m
c) 37.0 m
d) 43.0 m
850. Based on the presented lifting graph, indicate at what reach a properly functioning load limiter of the crane with a load of 1200kg will stop so-called dangerous movements:
a) 11.8mb) 27m
c) 30m
d) 33m851. Based on the presented load chart, indicate at what reach the properly functioning load limiter of the crane with a load of 1450kg will stop so-called dangerous movements:
a) 11.8m
b) 27m
c) 30md) 33m
852. According to the shown diagram, determine the crane's load capacity at max. reach, for a crane assembled in the version: 4-part rigging, lifting height 33.3 m, boom length 40 m:
a) 16000 kgb) 8.20 t
c) 15.4 t
d) 27.44 t853. The maximum load capacity of the crane indicated in the presented diagram is possible with the crane configured with a boom length of:
a) 45 mb) 50 mc) 55 m
d) all answers are correct
854. The maximum load capacity of the crane indicated in the presented diagram is possible with the crane configured with a boom length of:
a) 45 mb) 50 m
c) 40 m
d) all answers are correct855. The maximum load capacity of the crane indicated in the presented diagram is possible with the crane configured with a boom length of:
a) 45 mb) 50 m
c) 42 m
d) all answers are correct
856. According to the diagram below, the lifting capacity of the crane in the assembly version with a boom length of 33.4m, at a reach of 17m, with two rope strands is:
a) 5390 kg
b) 5600 kgc) 2800 kgd) 2300 kg
857. According to the lifting diagram below, please determine the maximum reach at which we can safely transport a load of mass Q= 1.5 t:
a) 15mb) 20m
c) 21m
d) 30m
858. The tower crane with a luffing boom assembled in version II, according to the diagram below, has the following parameters:
a) lifting capacity 2.5 t at a reach of 25mb) lifting capacity 5.0 t at a reach of 20m
c) lifting capacity 6.5 t at a reach of 10m
d) lifting capacity 5.5 t at a reach of 11m
859. The tower crane was assembled in a stationary version with a height of 40 meters, with a boom of 32.1 meters and double rigging. Determine the maximum weight this crane can lift at a radius of 22 m:
a) 1940 kgb) 1.27 tc) 2000 kg
d) 2330 kg
860. The tower crane was assembled in a stationary version with a height of 40 meters, with a boom of 32.1 meters and double rigging. Determine the maximum lifting capacity of the crane in this version:
a) 2 t
b) 4 tc) 3500 kgd) 3820 kg861. The tower crane was assembled in a stationary version with a height of 40 meters, a boom of 37.5 meters, and a quadruple rigging. Determine the maximum lifting capacity of the crane in this version:
a) 2 tb) 3750 tc) 3500 kg
d) 4000 kg
862. The permissible speed of the crane mechanisms during the movement of its concrete container with a platform for the operator or a basket for transporting people must not exceed:
a) 36 m/min (0.6 m/s)
b) 30 m/min (0.5 m/s)
c) 42 m/min (0.7 m/s)d) 48 m/min (0.8 m/s)863. The permissible wind speed when moving a concrete container with a platform for the operator or a basket for transporting people on the crane hook must not exceed:
a) 7 m/s (25 km/h)
b) 8 m/s (29 km/h)c) 9 m/s (32 km/h)d) 12 m/s (43 km/h)864. The permissible working load DOR is defined by:
a) the maximum mass of the load transported or supported by the sling during operation
b) the maximum lifting capacity of the crane in a given assembly version specified by the manufacturerc) the degree of utilization of the crane's resourced) the permissible number of work cycles specified by the crane manufacturer865. The permissible working load DOR of a two-leg wire sling:
a) increases with the angle of opening of the slingb) is not dependent on the angle of opening of the sling
c) decreases with the angle of opening of the sling
d) depends on the specific weight of the material being lifted using the sling866. The permissible working load DOR of a two-leg wire rope sling:
a) increases with the angle of opening of the slingb) is not dependent on the angle of opening of the sling
c) decreases with the angle of opening of the sling
d) depends on the specific weight of the material being lifted using the sling867. DOR of a web sling can be determined:
a) by testing the strength with a test weightb) by measuring the thickness of the strap
c) by checking the information on the identifier/label
d) all answers are correct868. What is the maximum permissible angle of opening of the chains of a two-leg chain sling when lifting a load?
a) 60°b) there is no angular limitationc) 90°
d) 120°
869. The operating instructions for moving a concrete container on a crane hook with a platform for the operator or a basket for moving people is agreed upon:
a) for any crane and basketb) for any conditions where work at height is necessaryc) none of the answers is correct
d) only for the construction site
870. What is the name of the deformation of the load-bearing rope shown in the drawing, disqualifying it from further use?
a) distortion in the shape of a corkscrew
b) distortion in the shape of a basket
c) distortion due to flatteningd) delamination of the inner core871. What is the maximum allowable load that can be lifted using the crane-sling system, given the following data: crane lifting capacity 10 t, transport beam with DOR 10 t, weight of the beam 1 t?
a) 20 t
b) 9 t
c) 10 td) 15 t872. What is the maximum allowable load that can be lifted using the crane-sling system, given the following data: crane lifting capacity 15 t, transport beam with DOR 10 t, weight of the beam 1 t?
a) 20 tb) 15 t
c) 10 t
d) 1 t873. What is the maximum allowable load that can be lifted using the crane-sling system, given the following data: crane lifting capacity 20 t, chain sling with DOR 11.2/8 t working at a cable deflection angle from vertical (β) of 60˚?
a) 20 tb) 11.2 t
c) 8 t
d) 4 t874. What is the maximum allowable load that can be lifted using the crane-sling system, given the following data: crane lifting capacity 20 t, chain sling with DOR 21.2/15 t working at a cable deflection angle from vertical (β) of 50˚?
a) 20 tb) 11.1 tc) 5 t
d) 15 t
875. What is the maximum allowable load that can be lifted using the crane-sling system, given the following data: crane lifting capacity 25 t, chain sling with DOR 14/10 t working at a cable deflection angle from vertical (β) of 65˚?
a) 14 tb) 10 tc) 25 t
d) each of the above answers is incorrect
876. What is the maximum allowable load that can be lifted using the crane-sling system, given the following data: crane lifting capacity 5 t, transport beam with a rated capacity of 8 t, weight of the beam 2 t?
a) 3 t
b) 8 tc) 5 td) 6 t877. Angles α and β in relation to slings:
a) are always equal to each otherb) angle α is half of angle β
c) angle β is half of angle α
d) all answers are incorrect878. Which of the following damages disqualifies a wire rope sling from further use?
a) breakage of the strand in the ropeb) local reduction of diameter due to core breakage of the ropec) deformation in the shape of a basket
d) all answers are correct
879. Which of the following conditions must a sling for moving a load absolutely meet:
a) the lifting capacity of the sling must not be less than the weight of the lifted loadb) the length of the sling must ensure that the angle of opening of the sling does not exceed 120°c) the sling must have a readable rated characteristic
d) all answers are correct
880. Which of the presented lifting accessories can be used to lift a sheet of metal in a horizontal position:
a) FIG. 1 and FIG. 2
b) FIG. 2 and FIG. 3c) FIG. 3 and FIG. 4d) FIG. 4 and FIG. 1
881. Which of the presented lifting equipment can be used to lift sheets in a horizontal position:
a) RYS. 1b) RYS. 2
c) RYS. 3
d) RYS. 4
882. Which of the presented lifting equipment can be used to lift I-beams:
a) RYS. 1
b) RYS. 2
c) RYS. 3d) RYS. 4
883. Which of the presented lifting equipment can be used to lift loads stored on transport pallets:
a) RYS. 1b) RYS. 2
c) RYS. 3
d) RYS. 4
884. Which of the presented lifting equipment can be used to lift steel rods of considerable length:
a) RYS. 1b) RYS. 2c) RYS. 3
d) RYS. 4
885. Which of the presented special slings can be used to lift sheets in a vertical position:
a) RYS. 1b) RYS. 2
c) RYS. 3
d) RYS. 4886. The load on a two-point hook should be suspended:
a) yes, so that both points are equally loaded
b) so that the difference in the load of the individual points of the hook does not exceed 30 %c) only using a special sling for a two-point hookd) only using chain slings
887. The maximum weight of the lifted load at an angle β of 40˚ must not exceed:
a) 12000 kg
b) 9000 kg
c) 6000 kgd) all answers are incorrect
888. The maximum weight of the lifted load at an angle β of 50˚ must not exceed:
a) 12000 kgb) 9000 kg
c) 6000 kg
d) all answers are incorrect889. The maximum weight of the lifted load at an angle β of 55˚ must not exceed:
a) 12000 kgb) 9000 kg
c) 6000 kg
d) all answers are incorrect890. The maximum weight of the lifted load at an angle β of 65˚ must not exceed:
a) 12000 kgb) 9000 kgc) 6000 kg
d) lifting is not allowed
891. The maximum weight that we can lift with a lifting device with a capacity of 24 t using the presented spreader is:
a) 24.0 tb) 23.8 tc) 22.8 t
d) 25.2 t
892. The maximum allowable angle between multi-leg slings is:
a) 60˚b) 90˚
c) 120˚
d) 150˚893. The maximum allowable apex angle a used in a sling can be:
a) 120°
b) 100°c) there are no restrictions, as it is sufficient to reduce the allowable working load of the slingd) 90°
894. The maximum DOR of the presented sling at an apex angle β of 45˚ is:
a) 8.4 t
b) 8.0 tc) 6.0 td) 4.0 t895. The maximum DOR of the presented sling at an apex angle β of 60˚ is:
a) 10.0 tb) 8.4 t
c) 6.0 t
d) 4.0 t896. The maximum WLL of the presented sling is:
a) 8.4 t
b) 6.0 tc) 10.0 td) 8.0 t897. The maximum angle β in the sling can be:
a) 120°
b) 60°
c) only angle α is consideredd) there are no restrictions, as it is sufficient to reduce the permissible working load of the sling
898. The minimum lifting capacity of the lifting device for a load of 24 t using the presented spreader is:
a) 20.0 t
b) 25.2 t
c) 30.0 td) all answers are incorrect899. The reduction of the WLL of a multi-leg sling is influenced by:
a) The number of ropes usedb) additional operational restrictions contained in the sling's instructionsc) the angle of divergence of the ropes
d) all answers are correct
900. The drawing shows:
a) the nameplate of a two-leg chain slingb) the nameplate of a chain sling with a maximum lifting capacity of 2,500 kgc) the nameplate of a chain sling with a maximum lifting capacity of 3,550 kg
d) answers a and c are correct
901. In the picture below, symbol a means:
a) the angle of divergence of the suspension cables
b) the maximum vertex anglec) the value determining the load capacity of the suspensiond) DOR of the suspension902. In the picture below, symbol β means:
a) the length of the suspension
b) the angle of deviation of the cables from the vertical
c) two-legged chain suspensiond) all answers are incorrect903. Unless the manufacturer specifies otherwise, the permissible number of wire breaks in a rope suspension is:
a) 1% of the wires in the braid over a length of 6 diameters and 10% over a length of 30 diametersb) 5 wires in the braid over a length of 6 diameters and 10 over a length of 30 diametersc) 10% of braids
d) all answers are incorrect
904. Unless the manufacturer specifies otherwise, the permissible wear criteria for hooks in suspensions are:
a) divergence of 5% and wear of the throat by 10%
b) divergence of 20% and wear of the throat by 10%c) divergence and wear of the throat by 1%d) the dimensions of the hook do not change during operation905. Provide the DOR of the suspension necessary to lift a load of 10 tons, if the angle of divergence of the suspension cables is 110 degrees?
a) 5 tonsb) 10 tons
c) 20 tons
d) 15 tons906. When lifting elements with sharp edges using a sling, one should:
a) use special protective pads to secure the sling from sharp edges
b) slings should not be usedc) the load should be double wrapped to prevent the strap from frayingd) only use polyester slings
907. The illustration below shows a feature:
a) chain sling
b) rope slingc) strap slingd) specialist traverse
908. The illustration below shows a feature:
a) chain sling
b) rope sling
c) strap slingd) specialist traverse
909. The illustration below shows a feature:
a) chain slingb) rope sling
c) strap sling
d) specialist traverse
910. The illustration below shows:
a) interchangeable equipment mounted to the heads of lifting devicesb) lifting system element of hoist trolleys
c) specialist sling for transporting loads placed on transport pallets
d) all answers are incorrect
911. The illustration below shows:
a) specialized sling for transporting steel and concrete pipes
b) claw grab for unloading scrapc) specialized sling for transporting loads placed on transport palletsd) element of rail clamps
912. The illustration below shows:
a) feature of a four-leg chain sling
b) feature of a rope sling with a length of 10 mc) feature of a special slingd) all answers are correct913. Working with a sling without a nameplate:
a) is prohibited
b) is permissible provided that special caution is exercisedc) is permissible provided that the lifting capacity of the slings is determined based on the hook numberd) is permissible with the consent of the conservator914. Before starting work, the operator is obliged to:
a) select a sling with the appropriate DOR based on the weight of the lifted loadsb) select a sling with the proper construction based on the type of lifted loadsc) assess the technical condition of the sling in terms of its wear
d) all answers are correct
915. The specialized sling shown in the illustration is used for:
a) lifting sheets of steel
b) lifting steel rodsc) lifting concrete elementsd) lifting plastic elements
916. The specialized sling shown in the drawing is used for:
a) lifting concrete elementsb) lifting plastic elements
c) lifting sheets of steel plate
d) lifting steel rods917. The abbreviation DOR stands for:
a) permissible working load
b) permissible working load of the cable at a vertex angle alpha of 120°c) allowed manual operationd) technical and operational documentation918. A spreader beam is used for:
a) lifting special loads, e.g. sheets of metal
b) lifting long loads, where the use of ordinary slings is impossible or difficult
c) lifting loads exceeding the nominal lifting capacity of the deviced) all answers are correct919. The maximum lifting capacity of the crane when rigging the block with four rope strands is 8t. After rigging the block with two rope strands, the maximum lifting capacity will be:
a) 16 tb) will not change
c) 4 t
d) none of the answers is correct920. Using slings at temperatures above 100˚C is:
a) permissible but for a short time
b) permissible as long as the sling instructions allow it
c) prohibitedd) permissible only when using chain slings
921. Based on the presented image, indicate the correct answer: The strand of the braid is marked with number
a) 1b) 2c) 4
d) 5
922. Based on the presented image, indicate the correct answer: The core of the rope is marked with number
a) 1
b) 2
c) 3d) 4923. Based on the presented image, indicate the correct answer: The braid of the rope is marked with number
a) 1b) 2
c) 3
d) 4
924. Based on the presented drawing, determine the maximum weight of the load that can be lifted using a 4-part sling:
a) 6 t
b) 8.4 tc) 12 td) all answers are incorrect
925. Based on the presented drawing, determine the maximum weight of the load that can be lifted using a 4-part sling:
a) 6 t
b) 8.4 t
c) 12 td) answers a and b are correct
926. Based on the presented drawing, determine the maximum load mass that can be lifted using a 4-sling hoist:
a) 7 tb) 8.4 tc) 12 t
d) all answers are incorrect
927. Based on the presented drawing, indicate the correct way to attach the hook:
a) Ab) B
c) C
d) D
928. Based on the presented drawing, indicate value A (DOR based on the suspension method) for the sling:
a) 1b) 1.4
c) 0.8
d) 2
929. Based on the presented drawing, indicate value A (angle a) for the two-sling hoist:
a) 100°
b) 90°
c) 70°d) 50°
930. Based on the presented drawing, indicate value A for the two-sling hoist:
a) 120%b) 90%
c) 70%
d) 10%
931. Based on the presented drawing, indicate value A for a two-leg sling:
a) 120%b) 90%c) 70%
d) 50%
932. Based on the presented drawing, indicate value A for a rope sling:
a) 6.0 tb) 5.0 t
c) 7.0 t
d) 3.5 t
933. Based on the presented drawing, indicate value A for a rope sling:
a) 2.0 tb) 5.0 tc) 7.0 t
d) 10.0 t
934. When lifting a basket for transporting people with a crane, the total mass of the lifted load (including the mass of the basket, its rated lifting capacity, slings) should not exceed:
a) 1/3 of the crane's lifting capacity under planned working conditions
b) 1/2 of the crane's lifting capacity under planned working conditions
c) 2/5 of the crane's lifting capacity under planned working conditionsd) 2/3 of the crane's lifting capacity under planned working conditions935. When moving a concrete container with a platform for the operator on the crane hook, the total mass of the lifted load (including the mass of the basket, its rated lifting capacity, slings) should not exceed:
a) 1/3 of the crane's lifting capacity under planned working conditionsb) 1/2 of the crane's lifting capacity under planned working conditionsc) 2/5 of the crane's lifting capacity under planned working conditions
d) 2/3 of the crane's lifting capacity under planned working conditions
936. The value of the DOR of a multi-strand sling is:
a) a value dependent on the lifting capacity of the crane
b) a variable value that depends on the angle between the sling strands
c) dependent on the mass of the transported loadd) a constant value937. As the vertex angle a increases:
a) the permissible working load increases
b) the permissible working load decreases
c) the permissible working load remains unchanged, as the angle only affects the lifting capacity of the craned) the vertex angle is only significant at a value of alpha=120 degrees
938. Indicate the missing value of the correction factor for the multi-strand sling in the table below:
a) 0.75b) 0.8c) 0.85
d) 0.7
939. Indicate which of the methods of suspending the load using a rope sling is correct:
a) Fig A
b) Fig Bc) Both methods are correctd) Both methods are incorrect
940. Indicate which of the methods of suspending the load is correct:
a) Fig A
b) Fig Bc) Both methods are correctd) Both methods are incorrect
941. Indicate which method of suspending a load using a rope sling is incorrect:
a) Fig Ab) Fig B
c) Fig C
d) Fig D
942. Indicate which method of attaching the hook is incorrect:
a) Fig A, B, C
b) Fig A, B, Dc) Fig A, C, Dd) Fig A, B, C, D
943. Indicate which method of attaching the hook is correct:
a) Fig A
b) Fig Bc) Fig Cd) Fig D944. The choice of the type of sling used depends on:
a) the type of material being transportedb) the availability of the sling and the distance between the workplace and its storage locationc) environmental conditions at the sling's workplace, e.g., temperature, UV radiation, air humidity
d) answers a and c are correct
945. The correct selection of the sling is the responsibility of:
a) the hook operatorb) the operator (in situations where the operator is responsible for lifting the load)c) the company's health and safety services
d) answers a and b are correct
946. Chain slings:
a) can only be terminated with a hook
b) can have other terminations than a hook, e.g. a shackle
c) can be used in any ambient temperatured) do not require maintenance947. Slings can be divided:
a) based on the material from which they are madeb) based on the number of load-bearing strandsc) based on the type of strands
d) all answers are correct
948. Slings are subject to periodic inspections at intervals:
a) every 30 daysb) every 2 monthsc) are not subject to periodic inspections
d) in accordance with the instructions for the operation of slings
949. A sling is:
a) an element that allows for the transportation of a loadb) an element placed between the hoist and the loadc) an element whose weight must be taken into account when lifting a load