NCCCO Certification of Crane Operators - 2024 Exam Review Questions and Answers, Exams of Mechanics

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NCCCO Certification of Crane Operators

2024 Exam Review Questions and Answers

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Administrator [Date] [Course title]

1. A frequent inspection is: Daily to monthly 2. 1. What action does a signal per- son intend the operator to per- form if he extends his arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? 3. 2. When hoisting personnel, within what percentage of level must a telescopic boom crane be in order for the gross ratings in the load chart to remain valid? 4. 3. The load line of the crane you're operating contacts an en- ergized power line. There's no sign of any other danger, such as fire. What should you do? Boom Up (Appendix A to Subpart CC of Part 1926--Standard Hand Signals) 1% (1926.1431(c) (1) The equipment must be uniformly level, within one percent of level grade, and lo- cated on footing that a qualified person has determined to be sufficiently firm and stable.) Stay in the cab until the lines are de- en- ergized.
2. 4. According to OSHA 1926.1413, 2 broken wires in 6 rope diameters how many randomly distributed broken wires in rotation-resis- tant rope are cause for replace- ment of the rope? 6. 5. What is the net capacity of a crane on main boom unless the manufacturer states otherwise? 7. What may happen to a proper- ly rigged load when lifted off the ground unless the operator takes account of boom deflec- tion

The capacity listed in the load chart minus the weight of the rigging and all attach- ments It could swing out away from the crane

8. Anyone

Who should an operator re- spond to a "stop" signal from?

9. Which area do truck cranes with- out a 5th outrigger generally have no lifting capacity unless the manufacturer states other- wise? 10. What is the definition of "operat- ing radius?" 11. What applies to the capacities below the bold line shown on a load chart? 12. In which quadrant are rough ter- rain crane capacities generally greater? 13. According to federal require- ments, under what conditions is it okay for a person to ride the headache ball? 14. By what percentage do most manufacturers require a crane's load chart capacity to be re- duced by for duty cycle opera- tions such as high- volume con- crete placement? 15. From which two points should the boom be measured? 16. What is the preferred method of installing wire rope from a reel onto a hoist drum?

The front The distance from the center of rotation of the crane to the center of gravity of the load They are based on the stability of the crane Over the front It is never okay 20% From the boom hinge pins to the center of the boom tip sheave The rope runs from the top of the reel to the top of the drum

17. Over which quadrant are truck crane capacities usually greater? 18. 18. According to OSHA, which accessible area of an operating crane must always be barricad- ed? 19. What is the OSHA regulation governing cranes in construc- tion? 20. Under which circumstance is a crack in the windshield of a crane cab okay? 21. Under which circumstance does OSHA permits hoisting of per- sonnel by crane? 22. Unless the manufacturer states otherwise, what crane capaci- ty chart is appropriate when a crane is set up with 3 of its 4 out- riggers extended and the fourth is retracted? 23. According to OSHA, while hoist- ing personnel, the total load must not exceed what percent- age of the crane's rated capaci- ty?" 24. When is side loading of crane booms permitted? 25. What is indicated if an operator makes two audible signals when moving a crane? Over the rear. The swing radius of the rear of the rotating superstructure 1926. As long as it causes no visible distortion that would interfere with safe operations As long as there is no less hazardous or practicable way On-rubber chart 50% Only with freely suspended loads He/she intends to go

ahead

26. When may blocking (cribbing) be placed under outrigger beams? 27. What is the result of placing tim- ber blocking under the tips of the tracks on a crawler crane? 28. According to ASME, what per- centage of the manufacturer's crane rating must not be exceed- ed if a load test is done on a repaired crane? 29. Where is the tipping axis of a crawler crane located? 30. What should be done with mate- rials placed under overhead en- ergized power lines? 31. Where should the crane's out- rigger pads or tracks be placed when working at ground floor level near a cellar wall? 32. How should the wheels of a crane be positioned when it is set up for working on outrig- gers? 33. What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? 34. When may a swivel be used with rotation resistant wire rope?

Never Makes the crane more stable 110% It depends if the idler or sprocket are in line or offset from the track rollers Not be lifted by crane At least as far back as the depth of the wall below ground Just high enough off the ground to relieve the tires of crane weight It increases If the rope manufacturer approves

35. Keep the boom as short as possible

What should you do on pick and carry operations?

36. What boom position would cause the greatest ground pres- sure when lifting with crawler cranes? 37. Where should the hook be posi- tioned when preparing to hoist a light load? 38. According to OSHA 1926.1408, what minimum clearance must be maintained between any part of the crane/load and 850kV en- ergized overhead power lines. 39. How many parts of line are re- quired to hoist a 36,500 lb. load if the maximum allowable line pull is 9,000 lbs.? 40. What determines the amount of deduction required for an erect- ed jib that is not being used? 41. What capacity should you use when the boom length of the crane falls between the lengths listed in the load chart? 42. When is it okay to temporarily bypass a crane's overload warn- ing system? 43. What happens to the leverage of the load on a crane as the boom is being lowered? Over the corner Directly above the load's center of gravity 45 ft. 5 The effective weight of the jib The next longest or the next shortest boom length, whichever is the lower ca- pacity During assembly/disassembly operations It increases

44. Where^ are^ the^ Standard^ Method hand signals found? a. OSHA Subpart CC
45. What should an operator do if Cease crane operations and report the a crane's load moment indicator condition to the supervisor (LMI) malfunctions?
46. When may a swivel be used with rotation resistant wire rope?
47. According to OSHA, while hoist- ing personnel, the total load must not exceed what percent- age of the crane's rated capaci- ty?"
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50. The primary purpose for a roost- Separate the hoist lines er sheave or Auxiliary boom point sheave is to:
51. What is the minimum allowable 10 ft. distance from the crane and power lines under 50k
52. When an operator leaves the ANSI B30.5-3.1.2, Put the load on the crane, he must first: ground and put all dogs or pawls in.
53. According to OSHA 20 MPH 1926.1431(k)(8)(i) personnel 1926.1431(k)(8)(i) platform lift shouldn't be made Wind. When wind speed (sustained or with wind in excess of: gusts) exceeds 20 mph at the personnel platform, a qualified person must deter-

mine if, in light of the wind conditions, it is not safe to lift personnel.

54. over the side

When operating a crawler crane, what is the most unstable allow- able quadrant of operation

55. When should a tagline be used When rotation of load would be danger- ous 1926.1417(w)&1910.180(h) (3)(xvi) A tag or restraint line must be used if necessary to prevent rotation of the load that would be hazardous. 56. What is the minimum design fac- tor required for a right regular lay main, boom or auxiliary hoist rope 57. How does the operator verify the LMI's boom length or load radius reading 58. If the rated capacity of the crane is above the solid line or within the shaded areas or has an as- terisk next to it, this means the capacity is based on: 59. What are the inspection criteria for running ropes where broken wires are concerned? 60. What are the inspection crite- ria for rotation resistant ropes where broken wires are con- cerned? 61. What are the inspection criteria for standing or pendant ropes

Actual measurements The crane capacities in the shaded areas above the bold lines, are based on struc- tural strength or hydraulic limitations. The cranes capacities below the bold lines are based on stability ratings. 1926.1413(a)(2)(ii)(A)(1) Six randomly distributed broken wires in one rope lay or three broken wires in one strand in one rope lay 1926.1413(a)(2)(ii)(A)(2) Two randomly distributed broken wires in six rope diameters or four randomly dis- tributed broken wires in 30 rope diame- ters. 1926.1413(a)(2)(ii)(A)(3) More than two broken wires in one rope lay located in rope beyond end connec-

where broken wires are con- cerned?

62. A diameter reduction of more than from nominal diame- ter. 63. In a range diagram, boom length and angle can be used to deter- mine 64. If a crane is not set up level, and the operator swings a load from the high side to the low side, the load radius will 65. Most crane manufacturers re- duce load capacity for duty- cy- cle operations because: 66. Only approved attachments or extra counterweights made by the manufacturer should be place on the rear if the crane be- cause 67. When working on outriggers, the only time they should be less than fully extended is when: 68. Backward stability of the crane is tested with: 69. When using load capacity charts, what does the term " jib angle to ground" refer to 70. When testing a man-basket, how long must the test pick be main- tained

tions and/or more than one broken wire in a rope lay located at an end connection. 1926.1413(a)(2)(ii)(B) 5% load radius increase Side loading, forces may occur they could cause a backward stability problem there is a load chart for this operation Basic boom at maximum angle with no load over the side Main boom angle minus the jib's offset 1926.1431(j)(2) The platform must be lowered by con- trolled load lowering, braked, and held

71. All sheaves used in the boom hoist reeving system must have a rope pitch diameter of not less than times the nominal diam- eter of the rope used if rotation resistant rope is used. 72. What is the minimum pitch diam- eter for load hoisting sheaves 73. What is the minimum pitch diam- eter for boom hoisting sheaves 74. What is the minimum pitch diam- eter for load block sheaves 75. Outrigger blocking should be at least 76. LMI shall be installed on cranes with a lifting capacity of: 77. When lifting personnel, the crane's hook must be the type that: 78. Allowable jib backlash is how much 79. Crane must be level within what % upgrade in a suspended position for a minimum of five minutes with the test load evenly distributed on the platform. 1926.1414(e)(4)(ii)(D) 18 not less than 18 times rope diameter not less than 15 times rope diameter not less than 16 times rope diameter 3X pad size 3 tons and above can be closed and locked 5 degrees 1%

80. A periodic inspection is: Monthly to annually

81. Test loads shall not exceed what % of manufacturer's load ratings

110%

82. Cranes idle for more than 6 months must have what inspec- tions performed 83. T or F; Rotation resistant ropes may be used as boom hoist reev- ing when load hoists are used as boom hoists for attachments such as luffing attachments or boom and mast attachment sys- tems. 84. What is the safety factor of ro- tation resistant rope while lifting personnel? Frequent, periodic, and wire rope 1926.1414(e)(4) (ii) T 10: