General-purpose overhead cranes
Study mode
Question of 261
1. A technical device subject to technical supervision may be operated on the basis of:
a) oral or written permission issued by an authorized conservator
b) a valid decision allowing operation issued by the relevant technical supervision authority
c) CE marking placed on the deviced) declaration of conformity issued by the manufacturer2. Which of the listed activities do 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 operation instructions regarding the operation of UTBc) familiarizing themselves with the work plan and the size of the loads being transportedd) all answers are correct3. The terms of maintenance inspections of technical devices:
a) are included in the operation manual of the device
b) are determined by the device conservatorc) are specified in the protocol by the inspector conducting the examinationd) all answers are correct4. Technical supervision is called:
a) specific actions defined by law aimed at ensuring the safe operation of technical devices and devices for recovering fuel vapor, as well as actions aimed at ensuring public safety in these areas
b) institutions controlling the technical condition of devicesc) The Office of Technical Supervisiond) UDT, WDT, TDT5. Technical supervision over technical devices is performed by:
a) The Office of Technical Supervision and specialized technical supervision units
b) The Office of Technical Supervision and organizations authorized by UDTc) The Office of Technical Supervision and foreign technical supervision unitsd) all answers are correct6. Changing the technical parameters or changing the construction of a technical device is considered 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 device7. 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 extent8. 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, TDT9. The decision allowing the operation of a technical device is issued by:
a) the conservator after performing an inspection with a positive resultb) the relevant technical supervision authority or the operator of the technical device authorized by the relevant technical supervision authorityc) the relevant technical supervision authority or the public administration authority authorized by the relevant technical supervision authority
d) the relevant technical supervision authority
10. The operator of the technical device can undertake work when:
a) the device has a valid decision allowing operation, if required by the relevant regulationsb) has a qualification certificate of the appropriate categoryc) the device has a current positive result of the maintenance inspection
d) all of the above conditions must be met simultaneously
11. The operator of the technical device may undertake work when:
a) the device has a valid decision allowing for its operation if required by the relevant regulationsb) has a qualification certificate of the appropriate categoryc) the device has a current positive result of the maintenance inspection
d) all of the above conditions must be met simultaneously
12. In the event of non-compliance with the technical supervision regulations by the operator, 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 correct13. In the event of a threat to human life or health, as well as property and the environment, the inspector:
a) issues a decision to suspend the operation of the technical device
b) issues a penalty ticketc) formally instructs the operatord) all answers are correct14. In the case of dangerous damage to the technical device or an accident, the operator:
a) immediately notifies UDT of the incident
b) informs the manufacturer of the device about the causes of the incidentc) immediately repairs the device and returns it to further operationd) reports the device for repair15. The qualification certificate for operation may 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 Inspectorate16. Technical devices not subject to technical supervision are:
a) cranes with a load capacity of up to 3.2 tb) hoists and winches as well as overhead cranesc) lift trucks and mobile platforms
d) transport slings
17. Technical devices subject to technical supervision are:
a) cabin and chair liftsb) warehouse stackers and devices for disabled personsc) freight lifts and ship lifts
d) all answers are correct
18. A dangerous malfunction of a technical device is:
a) any defect of the technical deviceb) an unforeseen malfunction, as a result of which the device is suitable for partial operationc) an unforeseen malfunction, as a result of which it is suitable for operation only under reduced conditions
d) an unforeseen malfunction, as a result of which the device is unsuitable for operation or its further operation poses a threat
19. 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 cause20. Lifting and transporting persons by a technical device intended solely for the transport of loads requires:
a) agreement with the relevant technical supervision authority
b) agreement with the supervisorc) agreement with the occupational health and safety serviced) it is possible with special caution and under the supervision of an inspector21. The person 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 inspector22. The required maintenance inspections mandated by law are performed by:
a) a person holding a qualification certificate for maintenanceb) an employee of the authorized service of the device manufacturer (provided they have qualification certificates for maintenance)c) in-house maintenance services
d) answers a and b are correct
23. The maintenance log of the technical device is kept by:
a) UDT inspector in the device's audit bookb) authorized operatorc) designated employee of the operator
d) maintenance technician of the technical device
24. Acceptance tests are conducted for technical devices:
a) within the timeframes consistent with the provisions of the regulation on technical supervision conditions
b) before issuing the first decision allowing for operation
c) after the repair of the technical deviced) after each change of the operator25. Periodic tests are conducted for technical devices under supervision:
a) limited
b) full
c) simplifiedd) all answers are correct26. The absence of the conservator during the examination of the technical device requires at least:
a) prior agreement of this fact with the authority of the relevant technical supervision unit
b) submission of a written justification for the conservator's absencec) submission of a medical certificate confirming the conservator's inability to workd) all answers are correct27. 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 correct28. The operator of a technical device is obliged to stop work when:
a) their physical and mental condition on the day of work is inappropriateb) they find that further operation of the device poses a threatc) the device is malfunctioning
d) all answers are correct
29. The terms of maintenance inspections of the device may be specified:
a) in the operation manual of the deviceb) in the act on technical supervisionc) in the regulation specifying the technical conditions of technical supervision
d) answers a and c are correct
30. The terms of periodic and ad-hoc inspections of UTB are specified:
a) in the act on technical supervision
b) in the regulation specifying the technical conditions of technical supervision
c) in the design documentation of the deviced) in the maintenance log31. The operator of the technical device is obliged to:
a) follow the operating instructions regarding the operation of the device
b) follow the operating instructions regarding the maintenance of the devicec) perform repairs of the deviced) all answers are correct32. The technical device can be operated based on:
a) the current sticker from the relevant technical supervision authority indicating 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 inspection33. After performing activities on the technical device, the inspector prepares:
a) operating instructions for the device
b) decisions and a protocol of the performed activities
c) CE declarations of conformityd) all answers are correct34. The repair and modernization of the technical device is performed by:
a) the operator within their skillsb) the conservator
c) an authorized establishment
d) the operator35. 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 workplace health and safety inspectord) the UDT inspector36. Information regarding the rules for the safe operation of the technical 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 inspector37. As part of the activities before starting work, the operator:
a) checks the technical condition of the device through inspectionb) performs static and dynamic testsc) performs operational tests of the device
d) answers a and c are correct
38. 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
39. Overloading the UTB during operation:
a) is prohibited
b) is permissiblec) is permissible but only up to 125% of the rated loadd) is permissible but only up to 110% of the rated load40. Ad-hoc operational tests are performed, among others:
a) after each fault removal by the maintenance technician
b) after replacing the load cables
c) once a yeard) after an accident on the device41. The duties of the operator are specified in:
a) the operation manual of the technical device
b) the maintenance logc) the technical supervision actd) all answers are correct42. Periodic inspections of the technical device are carried out by:
a) a conservator with the appropriate qualification certificate
b) an inspector from the relevant technical supervision authority
c) a manufacturer service employeed) the operator43. The technical supervision unit is:
a) The Office of Technical Supervisionb) Military Technical Supervisionc) Transport Technical Supervision
d) all answers are correct
44. Qualification certificates authorizing the operation of technical devices are valid in the area of:
a) the Republic of Poland
b) the European Unionc) have no defined area of validityd) Schengen zone countries45. The obligation to use personal protective equipment by operators of technical devices arises from:
a) the manufacturer's operation manualb) health and safety regulationsc) internal company regulations
d) all answers are correct
46. 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
47. The operating instructions may not contain:
a) information about the dates and scope of maintenance inspections of technical devicesb) basic parameters and purpose of technical devices
c) dates of technical examinations carried out by the inspection unit
d) information on how to operate the device48. The revision book of the device must contain:
a) a collection of protocols from examinations carried out by the inspection unit
b) a document in which maintenance inspections are recordedc) the content of current legal actsd) a list of authorized operators49. 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 incorrect50. A person who can take the qualification verification exam is:
a) who submitted an application for qualification verificationb) who is at least 18 years oldc) who has no health contraindications to operate technical devices
d) all answers are correct
51. After the technical inspection with a positive result, the UDT inspector:
a) extends the validity of the operator's qualification certificateb) marks the device with a sticker that is a permit for the use of 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 operation
52. 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 years53. Making modifications to a technical device without agreement with the competent technical supervision authority:
a) is subject to a fine or restriction of freedom
b) is subject to a penalty ticketc) is not subject to a penaltyd) all answers are incorrect54. 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 imprisonment55. The operation manual is:
a) a collection of information necessary for the safe operation of the device provided by the manufacturer
b) a collection of recommendations issued by the Technical Supervision Officec) a manual that must be created by the device userd) all answers are correct56. No qualifications are required to operate:
a) if the machine 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 age57. A person holding qualifications 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 t58. The obligation of the operator of a technical device is:
a) to refuse to operate the device if the decision allowing the operation of this device has expiredb) to always comply with the supervisor's orders regarding the operation of the devicec) to comply with the provisions contained in the operating instructions
d) answers a and c are correct
59. 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 correct60. 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
61. The operator is not allowed to:
a) lift loads whose weights he cannot determine
b) check the technical condition of the technical devicec) comply with the provisions contained in the operating instructionsd) perform external inspections of the device62. 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 correct63. Lifting people with devices that have been designed and manufactured solely 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 the detailed operating conditions
d) is permissible once on a written order from a superior64. Lifting loads using two or more UTB:
a) is permissible, provided that the operator develops detailed operating conditions describing organizational and technical activities to minimize risk
b) is always permissible if the load weight does not exceed the sum of the lifting capacities of the devices usedc) is permissible if the load weight does not exceed half the lifting capacity of each of the devices usedd) is never permissible65. Being under a 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 766. Lifting 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 devicesc) allowed provided that people are notified and equipped with personal protective equipment
d) all answers are incorrect
67. 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 incorrect68. The examination board informs the interested person of 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 date69. The maintenance log should be kept:
a) only in paper form
b) in electronic or paper form
c) only in electronic formd) by the operator70. The workplace instruction:
a) is always provided along with the operating instructions by the device manufacturerb) is an unwritten collection of customs adopted in the workplace
c) is issued by the employer and contains detailed instructions regarding health and safety at the workplace
d) does not apply to operators of mobile devices71. After the expiry date of the qualification certificate for operating the technical device, the operator:
a) can operate the technical device as long as they continue working for the same employerb) can operate the technical device as long as they submit an application for the issuance of another certificate
c) can operate the technical device only after obtaining a new qualification certificate
d) submits an application for the extension of the validity period of the qualification certificate72. The extension of the validity of the qualification certificate occurs:
a) upon a written request from the operator
b) automatically after the expiry date of the certificatec) upon a written notification from the employer of the operatord) after a prior telephone notification73. 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 load74. The net mass of 1000 l of water is approximately:
a) 800 kgb) 900 kg
c) 1000 kg
d) 1100 kg75. The mass of a load consisting of 40 packages of 25 kg each is:
a) 800 kg
b) 1000 kg
c) 1100 kgd) 900 kg76. The mass of 60 cartons weighing 20 kg each is:
a) 800 kgb) 1000 kgc) 1100 kg
d) 1200 kg
77. The mass of the lifted load can be determined based on:
a) the collective tag on the transported loadb) calculating considering the specific weight and volumec) transport and warehouse documentation
d) all answers are correct
78. Information regarding the lifting capacity of the device may be included:
a) in the operating manualb) on the nameplatec) on the technical device
d) all answers are correct
79. The correct unit of lifting capacity is:
a) kg
b) Pac) mthd) mm80. The connector of the crane:
a) should be located on the crane bridgeb) can be replaced by an emergency stop connector "STOP"c) should have the ability to be locked in the ON position
d) should have the ability to be locked in the OFF position
81. Support legs are:
a) elements used to prevent foreign objects from getting under the wheels of the crane
b) elements protecting against the effects of a broken wheel of the crane or its axle
c) elements used to secure the crane against unintended movementd) elements protecting the track structure82. Scrapers are:
a) elements used to prevent foreign objects from getting under the wheels of the crane
b) elements protecting against the effects of a broken wheel of the cranec) elements used to secure the crane against unintended movementd) elements protecting the track structure83. Rail clamps are:
a) elements used to prevent foreign objects from getting under the wheels of the craneb) elements protecting against the effects of a broken wheel of the crane
c) elements used to secure the crane against unintended movement
d) elements protecting the track structure84. What are the differences between a hoist and a winch?
a) hoist – compact design, winch – mounted on a frame, visible components
b) hoist - mounted on a frame visible components, winch – compact designc) there is no difference, they are the same technical devicesd) all answers are incorrect85. The electrical protections used in the construction of cranes are:
a) rail scrapersb) support legsc) crane mechanism motors
d) limit switches
86. The mechanical safeguards used in the construction of cranes are:
a) support legs
b) starting resistorsc) STOP switchesd) safety brakes87. Which load-bearing structure element connects the end carriages?
a) reducerb) hoistc) winch
d) beam
88. Where are the support legs mounted?
a) on the crane platform
b) to the lower flange of the end carriage
c) at the ends of the trackd) on the resistors/starting resistors89. How many elements pressing the rope should be installed on the rope drum?
a) according to the manufacturer's documentation
b) at least 4c) more than 3d) 4 over a section of at least 1.5 turns of the rope on the drum90. The main switch should not disconnect the circuits:
a) powering the drive motorsb) controlling the cranec) powering the crane
d) lighting the crane
91. The main elements of the crane's load-bearing structure are:
a) end carriages and girders
b) buffers and girdersc) load ropes and hook blockd) none of the above answers is correct92. What is the purpose of the zero lock?
a) prevents the main contactor from being turned on when at least one of the actuators is not in the neutral position
b) cuts off the power supply to the crane in an emergency situationc) prevents the position of the control lever from being changed when the main contactor is not turned ond) ensures proper zeroing of the crane's steel structure93. In lifting mechanisms of general-purpose cranes, brakes should be used:
a) automatic
b) tapec) three drum brakesd) at least two disc brakes94. The STOP switch:
a) completely disconnects the power supply to the crane
b) is a safety switch
c) disconnects the circuit of the electromagnetic gripperd) must return automatically to the initial position after being released95. The 'crane switch' should be located:
a) on the crane bridgeb) in the control cabin
c) in a generally accessible place, at the working level
d) in the immediate vicinity of the control cabinet96. Mechanical safety elements are:
a) bumpers, buffers, windproof clampsb) bumpers, buffers, rail scrapersc) bumpers, buffers, protective barriers
d) all answers are correct
97. Which of the elements listed below are mechanical safety devices?
a) bumpers, buffers, windproof clamps, support legs, hook throat protection, lifting limitersb) bumpers, buffers, windproof clamps, main switch, hook throat protection, shields
c) bumpers, buffers, windproof clamps, support legs, hook throat protection, shields
d) bumpers, buffers, windproof clamps, end and limit switches98. Unless the manufacturer specifies otherwise, what is the permissible wear of the hook throat of a general-purpose crane?
a) 5%b) 3%
c) 10%
d) 7%99. Unless the manufacturer specifies otherwise, what is the permissible opening of the hook throat?
a) 2%
b) 5%
c) 7%d) 10%100. What mechanical safety devices are located on the front panel?
a) bumpers, windproof clamps, support legs
b) buffers, windproof clamps, support legsc) bumpers, support legs, brakesd) bumpers, buffers, support legs, rail clamps101. Unless the manufacturer specifies otherwise, what is the permissible reduction in the diameter of the rope due to the wear of the outer layer of wires?
a) up to 3%b) 10% but not more than 5mmc) up to 15%
d) up to 7%
102. Should every crane operating outdoors be equipped with an anemometer?
a) yes
b) no
c) depends on the type of control (from the cabin or from the working level)d) no, if it has wind clamps103. Should every crane operating outdoors be equipped with wind clamps?
a) yes
b) noc) yes, if its span exceeds 25 md) only gantry and semi-gantry cranes are equipped with wind clamps104. Must every crane controlled from the cabin have a zero lock?
a) always when using controllers or driversb) a zero lock is not required when the main contactor automatically disconnects after a power failure
c) always when using controllers or drivers without return springs
d) only with the inverter drive of all crane mechanisms105. The safety switch "STOP" is used for:
a) securing the crane against unauthorized use after work is completed
b) immediate stopping of the device in emergency situations
c) in case of failure of the main brake, it activates the emergency brakesd) all of the above answers are correct106. The bumpers of the crane are:
a) immovable safety elements located at the end of the track
b) mechanical safety elements placed on the front face
c) both elements placed at the ends of the tracks and installed on the front facesd) none of the above answers is correct107. A complete check of the lifting mechanism brake consists of:
a) lifting a load with a mass not greater than the rated load of the device to a height of 2 m, then lowering it down and stopping suddenly
b) lifting a load with a mass not greater than the rated load to a small height, so that the load loses contact with the ground and observing whether the load does not fall on its own, then lifting it, lowering it, and stopping suddenly
c) controlling the lowering mechanism without a suspended load downwards and observing whether the block stops before it touches the working leveld) controlling the lowering mechanism without a suspended load upwards and observing whether the block stops before it touches the working level108. The task of the holding claw is:
a) to stop the crane in case the bridge crane limit switch does not operateb) to protect the gantry crane from the effects of strong wind gustsc) to protect the hoist or winch from falling in case of rope breakage
d) to protect the crane from the effects of a wheel breakage
109. The zero lock of cranes controlled from the cabin prevents:
a) the operation of the device by unauthorized persons
b) the automatic operation of the device after voltage appears in the control system
c) the disconnection of the crane control system in case of the activation of the windproof clampsd) the crane from operating in case of detecting a lack of zeroing110. What are wind protection devices for?
a) to protect against the effects of lightning strikes on the crane structure
b) to protect against unintended movement of the crane
c) for intended braking of the crane's travel mechanism during operationd) to immobilize the bridge structure for safe operation of the crane during strong winds
111. The picture shows cranes:
a) cantileverb) gantryc) overhead with a boom
d) semi-gantry
112. The limit switch of the lifting mechanism in the direction "up":
a) is responsible for stopping the load during the lifting cycleb) facilitates the work of the operator, who does not have to observe the load in the upper position, as the limit switch will automatically stop the lifting at the right moment
c) is used to protect the crane from damage and cable breakage
d) all of the above answers are correct113. What does the inscription on the crane bridge Q = 10 t + 10 t mean?
a) the crane has a rated load capacity of 10 tb) the crane has a mass of 10 t and a rated load capacity of also 10 t
c) the crane has two lifting mechanisms
d) the load capacity of the crane depending on the number of strands of the lifting cable is 10 t or 20 t114. What is a cross lock in the control cassette?
a) this lock prevents simultaneous activation of opposite directions of the mechanism's movement
b) this lock means that before starting the cassette, the "X" button must be pressedc) a lock preventing the control of the crane from two places simultaneouslyd) a cross lock in the control cassette is equivalent to a zero lock in a cabin crane115. Controllers are elements of the crane used for:
a) setting the crane parallel on the trackb) remote control of the crane mechanismsc) intermediate control of the crane mechanisms
d) direct control of the crane mechanisms
116. The mechanical travel limiter of the crane mounted on the runway is:
a) stop clawb) limit switch
c) buffer
d) bumper117. What is the nominal lifting capacity of a crane marked Q=10/3.2 t?
a) 10 t
b) 13.2 tc) 3.2 td) when connected in star 10 t and in triangle 3.2 t118. The activation of the lifting limiter will cause:
a) the shutdown of all crane mechanismsb) the shutdown of the lifting mechanism in both directions
c) the shutdown of the lifting mechanism movement in the "up" direction
d) none of the above answers is correct119. The front plate is an element of:
a) crane
b) hoistc) winchd) hook block120. Unless the manufacturer specifies otherwise, the limit switches of the crane's travel mechanism are intended to:
a) stop the crane before hitting an obstacle or another craneb) prevent crane overloadc) prevent hitting the buffers at a speed not exceeding 1.5m/s
d) prevent the crane from hitting the buffer at the rated speed
121. The STOP switch at the crane operator's station is used for:
a) stopping the crane movements in end positionsb) stopping the crane during maintenance work
c) immediately stopping the crane in dangerous situations
d) activating the emergency brake122. In the case of two or more cranes operating on the same track, the electrical safety devices preventing cranes from colliding are:
a) limit switches
b) anti-collision system
c) load limitersd) movement release limiters123. The driving directions in a radio-controlled crane should be marked:
a) on the crane structure in a place visible to the operator and on the radio control panel
b) in the crane cabinc) before entering the hall where the crane operatesd) on every visible support column of the track124. The abbreviation GNP stands for:
a) Borderline Nominal Speedb) allowable Working Load in Englishc) Low Current Socket
d) Work Intensity Group
125. The safety device against the load falling from the hook throat is:
a) tying slings to the hook
b) safety latch
c) with proper sling arrangement in the throat, no safety is requiredd) rigid sling, i.e., truss126. What color should the emergency stop switch be marked with?
a) yellowb) any
c) red
d) black-yellow127. The girder of the crane is:
a) the maximum load mass that the crane can lift
b) a beam that is a component of the crane's load-bearing structure
c) a set of levers for controlling the lifting mechanism in a gantry craned) a supporting element of the substructure or track128. What type of hooks can be used in blocks?
a) hooks can be made of plastic
b) hooks should be made as forged or plate
c) hooks can be made of any materiald) crane hooks should be steel castings129. In which cranes is the use of an end switch for the lifting mechanism in the upward direction not required?
a) in cranes with a wire rope winch
b) in cranes with a chain hoist where a friction clutch is used
c) the end switch for the lifting mechanism should be absolutely used in all cranesd) in wire and chain hoists with a lifting capacity of up to 1000 kg130. Unless the manufacturer specifies otherwise, the minimum distance at which the hook block must stop, counting from the lowest positioned elements of the crane, is:
a) 5 cmb) 10 cm
c) 20 cm
d) 15 cm131. The crane bumpers are mounted:
a) at the end of the travel track
b) on the fronts
c) on the girdersd) on the longitudinal beams132. What is the permissible number of visible cracks in the crane hook?
a) 0
b) 1c) 2d) 10%133. A safety element mounted in the lifting mechanism of cranes can be:
a) load limiterb) end switch of the lifting mechanismc) friction overload clutch
d) all answers are correct
134. The designation of the crane's lifting capacity 8t+8t indicates that:
a) the crane can lift a load weighing 16 t on one of the two lifting mechanisms
b) the crane can lift a load not exceeding 16 t assuming that both lifting mechanisms are used simultaneously and neither is overloaded
c) each of the crane's lifting mechanisms can lift a load weighing 16 td) the nominal lifting capacity of the crane is 8 t135. The basic parameters of a hoist include:
a) lifting capacityb) lifting heightc) working speed
d) all answers are correct
136. Checking the zero lock:
a) is carried out with the STOP button pressedb) is carried out with the rated loadc) does not require moving the control lever - the lock is checked in the neutral position of the lever
d) requires moving all actuators in all directions
137. During the zero lock check:
a) the main switch of the crane must be turned on
b) the start button in the cabin must be pressed and lockedc) the load is lifted above the working leveld) the STOP button must be pressed138. Is it permissible for the operator to overload the crane during operation in certain situations?
a) yes, during tests before starting workb) yes, upon written instruction from the supervisorc) yes, but occasionally
d) no, it is prohibited
139. Can the sling be hooked at the end of the hook (at the corner of the hook)?
a) yes, after ensuring that the sling will not fall out
b) no, never
c) yes, if it does not pose a dangerd) only in the case of hooks with a latch safety feature140. Lifting loads through an opening in the ceiling from a lower floor:
a) is permissible after meeting the appropriate conditions
b) is absolutely prohibitedc) is permissible only for cranes with a lifting capacity below 250 kgd) does not ensure kinematic continuity, therefore it is not allowed141. During the loading of a truck using a crane, the driver of the vehicle should be:
a) in the vehicle's cabinb) on the vehicle's loading platformc) anywhere in the workplace
d) outside the crane's work zone
142. In the case of load swaying, one should:
a) wait until the load stops swaying, warning nearby people of the danger of being hitb) at all costs, stop the load manually; if it is a large load, ask for help from other workers
c) extinguish the load swaying through proper crane or hoist movement
d) immediately place it on the ground143. One cubic meter of steel approximately weighs:
a) 1000 kgb) 4.5 - 5.0 tc) 1.0 t
d) 7.5 - 7.9 t
144. A load of steel sheets with a volume of 0.5 cubic meters:
a) we will lift with a crane with a capacity of at least 0.5 t
b) we will lift with a crane with a capacity of no less than 4 tons
c) a special-purpose crane of any capacity should be usedd) none of the above answers is correct145. In the case of lifting a large load and the presence of several signalmen giving commands to the crane operator, one should:
a) the participation of more than one signalman during the load lifting operation is not allowed
b) follow the commands of one previously designated signalman, except for the STOP signal, which can be given by any signalman
c) follow the commands of all signalmen, except for the STOP signal, which can only be given by one previously designated signalmand) follow the commands in the order they are given146. Loads may be stored:
a) in any place, provided that the dimensions of the load allow itb) on transport routes
c) only in designated places
d) in places designated by the UDT inspector147. A crane with a pneumatic gripper can be used for lifting:
a) only ferromagnetic sheetsb) only glass panes
c) sheets made of any material as well as glass panes
d) exclusively plastics with a smooth external surface structure148. The brake test of the lifting mechanism is negative if:
a) the brake shoes and brake disc are not lubricatedb) after loosening the brake, the distance between the friction linings and the brake disc is the same and not greater than specified in the documentationc) with the brake shoes tightened, the stroke of the release lever is utilized at 80%
d) a load with a mass equal to or less than the lifting capacity is not maintained at the specified height
149. Unless the manufacturer has provided otherwise, the limit switch of the lifting mechanism in the "down" direction should be set so that:
a) at least 1.5 m of rope remains on the drumb) at least 2.5 m of rope remains on the drum including the section used for its attachment
c) at least 1.5 turns of rope remain on the drum excluding the section used for its attachment
d) at least half the length of the rope remains on the drum150. An important criterion for hook wear is:
a) crackingb) widening of the hook throatc) reduction of the cross-section in the gripping part
d) all answers are correct
151. The check of the limit switch of the lifting mechanism in the "up" direction is performed:
a) with nominal load
b) without load
c) with a load of 110%d) with the largest available load at that moment not exceeding the crane's lifting capacity152. A broken strand of the crane's lifting rope causes that:
a) work can continue until the end of the current loading/unloading or until the end of the shiftb) work can only continue until the rope is replaced with a new onec) work can only continue on the condition that the remaining strands and the core have not been damaged
d) work must be immediately stopped
153. The following drawing represents a feature:
a) chain sling
b) rope slingc) strap slingd) specialist traverse
154. The following drawing represents a feature:
a) chain sling
b) rope sling
c) strap slingd) specialist traverse
155. The following drawing represents a feature:
a) chain slingb) rope sling
c) strap sling
d) specialist traverse156. The traverse 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 rated capacity of the technical deviced) all answers are correct
157. The minimum lifting capacity of the lifting device for a load of 24 t using the presented traverse is:
a) 20.0 t
b) 25.2 t
c) 30.0 td) all answers are incorrect158. The abbreviation DOR means:
a) permissible working load
b) permissible working load of the sling at a vertex angle alpha of 120°c) allowed manual operationd) technical and operational documentation159. The load on a two-point hook should be suspended:
a) so that both points are equally loaded
b) so that the difference in load between the individual points of the hook does not exceed 30%c) only using a special sling for a two-point hookd) only using chain slings160. The reduction of DOR for a multi-sling is influenced by:
a) The number of slings usedb) additional operational restrictions contained in the sling instructionsc) the angle of divergence of the slings
d) all answers are correct
161. Based on the presented drawing, indicate value A for the wire rope sling:
a) 6.0 tb) 5.0 t
c) 7.0 t
d) 3.5 t
162. Based on the presented drawing, indicate value A for the wire rope sling:
a) 2.0 tb) 5.0 tc) 7.0 t
d) 10.0 t
163. The drawing shows:
a) nameplate of a two-leg chain slingb) nameplate of a chain sling with a maximum load capacity of 2,500 kgc) nameplate of a chain sling with a maximum load capacity of 3,550 kg
d) answers a and c are correct
164. Based on the presented drawing, indicate value A (angle alpha) for the two-leg sling:
a) 100°
b) 90°
c) 70°d) 50°
165. Based on the presented drawing, indicate value A (angle alpha) for the two-leg sling:
a) 120°
b) 90°c) 70°d) 50°
166. Based on the presented drawing, indicate value A (DOR based on angle alpha) for a two-leg sling:
a) 70%
b) 90%c) 110%d) 50%
167. Based on the presented drawing, indicate value A (DOR based on angle alpha) for a two-leg sling:
a) 70%b) 90%c) 110%
d) 50%
168. Based on the presented drawing, indicate value A (DOR based on the method of suspension) for a belt sling:
a) 1b) 1.4c) 0.8
d) 2
169. Based on the presented drawing, indicate value A (DOR based on the method of suspension) for a belt sling:
a) 1b) 1.4
c) 0.8
d) 2
170. Based on the presented drawing, indicate value A (DOR based on the method of suspension) for a belt sling:
a) 1
b) 1.4c) 0.8d) 2
171. Indicate which method of suspending the load is correct:
a) Fig A
b) Fig Bc) Both methods are correctd) Both methods are incorrect
172. Indicate which method of suspending the load using a rope sling is correct:
a) Fig A
b) Fig Bc) Both methods are correctd) Both methods are incorrect
173. The following illustration shows:
a) interchangeable equipment mounted to the heads of lifting devicesb) element of the lifting system of hoisting trolleys
c) specialized sling for transporting loads placed on transport pallets
d) all answers are incorrect
174. The following illustration shows:
a) specialized sling for transporting steel and concrete pipes
b) claw grab for handling scrapc) specialized sling for transporting loads placed on transport palletsd) element of rail clamps
175. 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
176. The specialized sling shown in the drawing is used for:
a) lifting concrete elementsb) lifting plastic elements
c) lifting sheets of steel
d) lifting steel rods177. The correct selection of the sling is the responsibility of:
a) the hook operatorb) the operator (in situations where the operator is responsible for hooking the load)c) the company's health and safety services
d) answers a and b are correct
178. Slings are subject to periodic inspections at intervals of:
a) every 30 daysb) every 2 monthsc) not subject to periodic inspections
d) in accordance with the provisions of the sling operation manual
179. 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) the environmental conditions of the sling's workplace, e.g., temperature, UV radiation, air humidity
d) answers a and c are correct
180. 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
181. A sling is:
a) an element that allows the transport of a loadb) an element placed between the hoist and the loadc) an element whose mass must be taken into account when lifting a load
d) all answers are correct
182. Slings can be divided:
a) based on the material from which they are madeb) based on the number of load-bearing ropesc) based on the type of ropes
d) all answers are correct
183. The WLL of a web sling can be determined:
a) by testing the strength with a test weightb) by measuring the thickness of the web
c) by checking the information on the identifier/label
d) all answers are correct184. 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 inspector185. Chain slings:
a) can only be terminated with a hook
b) can have terminations other than a hook, e.g. shackles
c) can be used in any ambient temperatured) do not require maintenance186. The maximum allowable vertex angle a used in the 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°187. The maximum beta angle in the sling can be:
a) 120°
b) 60°
c) only angle a is consideredd) there are no restrictions, as it is sufficient to reduce the allowable working load of the sling
188. Indicate which of the methods of suspending the load using a rope sling is incorrect:
a) Fig Ab) Fig B
c) Fig C
d) Fig D
189. Indicate which of the methods of attaching the hook is correct:
a) Fig A
b) Fig Bc) Fig Cd) Fig D
190. Indicate which of the methods 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
191. Based on the presented drawing, indicate value A for a two-leg sling:
a) 120%b) 90%
c) 70%
d) 10%
192. Based on the presented drawing, indicate value A for a two-leg sling:
a) 120%b) 90%c) 70%
d) 50%
193. Unless the manufacturer specifies otherwise, the permissible criteria for hook wear in slings are:
a) opening by 5% and wear of the throat by 10%
b) opening by 20% and wear of the throat by 10%c) opening and wear of the throat by 1%d) hook dimensions do not change during operation194. Unless the manufacturer specifies otherwise, the permissible number of wire breaks in a wire rope sling is:
a) 1% of wires in the strand over a length of 6 diameters and 10% over a length of 30 diametersb) 5 wires in the strand over a length of 6 diameters and 10 over a length of 30 diametersc) 10% of strands
d) all answers are incorrect
195. 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
196. As the apex angle alpha 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 hoistd) the apex angle is only significant at a value of alpha=120 degrees197. The angles alpha and beta in relation to slings:
a) are always equal to each otherb) angle a is half of angle þ
c) angle þ is half of angle a
d) all answers are incorrect198. When lifting elements with sharp edges using a web sling, one should:
a) use special protective pads to secure the sling from sharp edges
b) it is prohibited to use web slingsc) the load should be double wrapped to prevent the strap from frayingd) only use polyester web slings199. The DOR value of a multi-leg sling is:
a) a value dependent on the lifting capacity of the hoist
b) a variable value that depends on the angle between the sling legs
c) dependent on the mass of the transported loadd) a constant value200. Using slings at temperatures above 100°C is:
a) permissible but for a short time
b) permissible as long as the sling's instructions allow it
c) prohibitedd) permissible only when using chain slings
201. The below illustration 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 correct
202. The maximum WLL of the presented sling is:
a) 8.4 t
b) 6.0 tc) 10.0 td) 8.0 t203. The maximum WLL of the presented sling at a vertex angle beta of 60° is:
a) 10.0 tb) 8.4 t
c) 6.0 t
d) 4.0 t204. The maximum WLL of the presented sling at a vertex angle beta of 45° is:
a) 8.4 t
b) 8.0 tc) 6.0 td) 4.0 t
205. Based on the presented illustration, indicate the correct way to attach the hook:
a) Ab) B
c) C
d) D
206. The maximum mass of the lifted load at an angle beta of 55° cannot exceed:
a) 12000 kgb) 9000 kg
c) 6000 kg
d) all answers are incorrect207. The maximum mass of the lifted load at an angle beta of 40° cannot exceed:
a) 12000 kg
b) 9000 kg
c) 6000 kgd) all answers are incorrect208. The maximum mass of the lifted load at an angle beta of 50° cannot exceed:
a) 12000 kgb) 9000 kg
c) 6000 kg
d) all answers are incorrect209. The maximum mass of the lifted load at an angle beta of 65° cannot exceed:
a) 12000 kgb) 9000 kgc) 6000 kg
d) lifting is not allowed
210. Based on the presented drawing, determine the maximum mass 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
211. Based on the presented drawing, determine the maximum load mass that can be lifted using a 4-sling hoist:
a) 6 t
b) 8.4 t
c) 12 td) answers a and b are correct
212. 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
213. Which of the presented special slings can be used for lifting sheets in a vertical position:
a) FIG. 1b) FIG. 2
c) FIG. 3
d) FIG. 4
214. Which of the presented lifting equipment can be used for lifting sheets in a horizontal position:
a) FIG. 1
b) FIG. 2
c) FIG. 3d) FIG. 4
215. Which of the presented lifting equipment can be used for lifting I-beams:
a) FIG. 1
b) FIG. 2
c) FIG. 3d) FIG. 4216. Which of the presented lifting equipment can be used to lift long steel rods:
a) RYS. 1b) RYS. 2c) RYS. 3
d) RYS. 4
217. 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
218. Which of the presented lifting equipment can be used to lift a sheet of metal in a horizontal position:
a) RYS. 1 and RYS. 2
b) RYS. 2 and RYS. 3c) RYS. 3 and RYS 4d) RYS. 4 and RYS 1
219. In the picture below, the alpha symbol means:
a) the angle of divergence of the sling strands
b) the maximum apex anglec) the value determining the lifting capacity of the slingd) DOR of the sling220. In the picture below, the beta symbol means:
a) the length of the sling
b) the angle of deviation of the strands from the vertical
c) two-legged chain slingd) all answers are incorrect221. Which of the following conditions must a sling for load handling absolutely meet:
a) the lifting capacity of the sling cannot be less than the weight of the lifted loadb) the length of the sling must ensure that the angle of the sling opening does not exceed 120°c) the sling must have a legible rated characteristic
d) all answers are correct
222. Before starting work with the crane, the operator should:
a) conduct a dynamic test with a load of 110% of the lifting capacityb) check the stroke of the brake releasec) measure the opening of the hook throat
d) check the operation of the brakes with the load that will be transported
223. In the event of a crane failure with a load on the hook, the operator should perform the following actions:
a) secure the areab) notify the supervisorc) turn off the crane's power supply
d) all of the above answers are correct
224. The operator is prohibited from:
a) using the maximum travel speed of the crane
b) transporting loads over people
c) working during raind) coordinating the working movements as specified in the instructions225. Checking the operation of limit switches:
a) is solely the responsibility of the maintenance technicianb) should only be conducted at the highest travel levelsc) is only performed during UDT inspections
d) should be conducted before starting work
226. The brake test is carried out:
a) before starting the crane operation
b) only during tests conducted by UDTc) only after replacing the roped) only in the presence of the conservator227. In the event that the splice in the rope is pressed:
a) work with the crane must be immediately stopped
b) the rope can be secured with additional elementsc) it can be used, but sudden movements should be avoidedd) it can be operated with a load limited to half the capacity228. When the crane is damaged:
a) work must be stopped
b) work can continue with special cautionc) work can continue but the load must be reduced by halfd) it can be operated on written instructions from the supervisor229. The test of the limit switch of the lifting mechanism in the upward direction is performed:
a) with a load equal to 50% of the rated capacityb) with a load equal to 100% of the rated capacity
c) without weight
d) with the largest currently available weight not exceeding the capacity230. The movement limiters of the crane mechanisms are:
a) load limiterb) emergency stop switch "STOP"c) resistance claw
d) limit switch
231. After finishing work, the hook block:
a) we leave it in the upper extreme position
b) we leave it unloaded and suspended on the hook, at a safe height
c) we can leave it with slings hanging on the hookd) we suspend it on a dedicated hanger in the crane's parking place232. What does the information 20/5 t placed on the crane mean?
a) the crane's lifting capacity is 5 t, and the lifting height is 20 mb) the crane's lifting capacity is 20 t with the possibility of temporarily overloading it by 5 tc) the crane's lifting capacity is a total of 25 t
d) none of the above answers is correct
233. What does the inscription on the crane 25 t + 5 t mean?
a) the crane has two lifting mechanisms, one with a capacity of 25 t, the other 5 t, and they can be operated simultaneously
b) the crane has one lifting mechanism with a capacity of 25 t, which can be overloaded by a maximum of 5 tc) the crane has two lifting mechanisms, one with a capacity of 25 t, the other 5 t, and they cannot be operated simultaneouslyd) none of the above answers is correct234. At what height above people can a load be transported using a crane?
a) up to 1.0 m provided that the person is wearing a helmet
b) this is not permissible
c) as high as possible, so as not to hit the head of a person under the loadd) depending on the instructions for the operation of the technical device235. At what height above obstacles (e.g., machines) is it recommended to transport a load using a crane?
a) at a safe height, provided that there are no people on the route of travel
b) this is not permissiblec) 200 cmd) in every case at the maximum lifting height236. What is the purpose of using a zero lock on the actuators?
a) the zero lock protects the crane from unauthorized useb) the zero lock is used to protect the crane from overloadc) the zero lock protects the crane from strong winds
d) it protects against the automatic start of mechanisms due to the appearance of rated voltage when the control levers are not in the zero position, after its previous disappearance
237. How should one prevent the swaying of large-sized loads?
a) the hook operator holds the load by handb) the operator holds the load by hand
c) using a safety line attached to the load
d) all of the above answers are correct238. When should a spreader beam be used?
a) if we are transporting very long loadsb) if the angle between the slings exceeds 120° when using a multi-leg slingc) if we have too short slings
d) all of the above answers are correct
239. Is it allowed to lift loads that are stuck in the ground or frozen?
a) yes, with the consent of the plant manager
b) no, it is not allowed
c) yes, after consulting with the hook operatord) yes, but first the load should be dragged horizontally240. Can a suspended load be left unattended on the crane hook during operation?
a) yes, because the load will never fallb) yes, if the hook operator gives consent and designates the appropriate danger zone
c) no, it is not allowed
d) this should be done for economically justified purposes241. Is it permissible to lift one load with two or more cranes?
a) under no circumstances is it allowed to lift
b) it is allowed, after the operator has developed detailed operating conditions
c) it is allowed after agreement with the operator of the second craned) it is allowed but only using special purpose cranes242. Transporting people along with the load:
a) is prohibited
b) is allowed with the consent and at the request of the plant managerc) is prohibited when the total weight of the load and person exceeds the crane's lifting capacityd) is allowed only if the lifting capacity reserve exceeds 1 ton and the crane has two independent lifting brakes243. The signal 'STOP', which must be reacted to immediately, can be given by:
a) only the hook operatorb) only the signalman
c) any person
d) only the plant or construction manager244. How should the load be suspended on a two-horn hook?
a) the method of suspension does not matterb) so that one throat is loadedc) so that none of the throats is loaded
d) so that both throats are evenly loaded
245. To pull a load lying outside the crane's working area, you can use:
a) the bridge travel mechanismb) the trolley travel mechanismc) the lifting mechanism
d) none of the above answers is correct
246. The crane operator, seeing people on the path of the transported load, should:
a) lift the transported load to such a height that it does not hit bystanders with the load during its transportb) lift the transported load until the "Up" limit switch activates and check if those people are wearing helmetsc) warn with an acoustic signal the people in the danger zone and continue working
d) stop the operation until the bystanders leave the area
247. In case of improper setting of the limit switch of the lifting mechanism in the upward direction, the operator should:
a) familiarize themselves with the manufacturer's documentation and make adjustments
b) stop work and inform the supervisor about the need for adjustments
c) continue working, the adjustment will be made during the maintenance inspectiond) continue working to maintain the continuity of the technological process of the plant248. After finishing work, the crane should:
a) lower the hook to touch the groundb) raise the hook until the limit switch activates
c) position the crane in its permanent parking place and raise the hook to a height that does not interfere with the transport routes below the activation of the limit switch
d) raise the block hook to a height ensuring proper tension of the load-bearing rope strands249. If during the transport of the load the crane operator notices the load slowly descending by itself, then:
a) it indicates a failure of the lifting mechanism brake
b) it indicates a temporary drop in supply voltage, which will pass by itselfc) it is the effect of the load limiter activatingd) in control systems with setting controls, this is a completely normal situation250. Coordinating the movements of the crane is:
a) an attempt to simultaneously start lifting and lowering the hookb) the ability to stabilize a swaying loadc) a basic mistake of beginner crane operators
d) the simultaneous activation of the movement of two mechanisms
251. To lift a load of unknown mass, one should:
a) check the correctness of the lifting limiter's operation and then lift the loadb) perform transport work at a safe speed, carrying the load as close to the ground as possible
c) estimate the mass of the load
d) ask for help, e.g., from a forklift operator252. The brake test of the lifting mechanism is performed:
a) only after finishing work
b) before the first lift of the load and when lifting a load larger than the previous one
c) each time when lifting a loadd) once before starting a given shift253. How should the operation of limit switches in two-speed cranes be correctly checked?
a) 1x at high speed
b) 2x, (1x slow and 1x fast)
c) there is no need to check the limit switchesd) cranes are not equipped with limit switches254. Can the crane operator, hoist operator, or winch operator leave the sling after finishing work on the lifting mechanism hook:
a) yes, but only chain or strap slings
b) no
c) yes, but only if the hook block lifts it high enoughd) in workplaces with continuous operation, this is recommended255. Can the operator use a device with a damaged brake of the lifting mechanism:
a) yes, but only if the lifted load has a slight massb) yes, but only if the lifted load does not exceed the rated lifting capacity of the devicec) yes, then they use the emergency brake activated by the emergency stop button
d) no, they cannot
256. Can the operator lift the transported load when the lifting mechanism ropes of the hoist, winch, or crane are not vertical:
a) yes, provided that the angle of deviation of the ropes does not exceed 45°b) yes, provided that the angle of deviation of the ropes does not exceed 60°c) yes, because the maximum allowable angle is 120°
d) cannot lift the load
257. The wind protection devices of the crane operator must be activated:
a) only when he has received information from his superior about strong winds or an approaching stormb) always before starting work in strong wind conditionsc) should not be activated, as this is the responsibility of the maintenance worker
d) always after finishing work and/or leaving the control area
258. Above containers where people may be present:
a) it is allowed to transport loads, provided that a vertical distance of 0.5 meters from the container is maintained
b) it is not allowed to transport loads
c) it is allowed to transport loads without stopping above the containers and maintaining a vertical distance of 1 meter from the containerd) none of the above answers is correct259. In case of limited visibility of the loading area, one should:
a) refuse to perform the work
b) use the help of a signalman
c) first try to set down without the help of a signalman, only if unsuccessful ask for helpd) estimate the transport route, and then set down the load independently260. The zero lock will prevent the crane from being turned on in the case of:
a) setting all controllers to the zero position
b) setting any controller outside the zero position
c) a faulty shock protection installationd) poor condition of the electrical insulation of the wires261. The safety zone of a moving crane depends on?
a) the height at which the load is transportedb) the speed at which the load is transported