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NCCCO test Answers
- Regular constructed crane hoist wire rope shall be taken out of service when
- Wear of one-third the original diameter of outside individual wires d. All of the
any of the following conditions exist - ANSWER-a. In running ropes, six randomly distributed broken wires in one lay b. Three broken wires in one strand in one lay
above (answer: d)
- What is the safety factor for rotation resistant hoist wire rope? - ANSWER-5.0
- What is the safety factor for regular lay hoist wire rope? - ANSWER-3.5 to 1
- What is the SWL of RRL 6x25 IWRC Hoist Wire Rope? - ANSWER-3.5 to 1
- What is the SWL of boom hoist wire rope? - ANSWER-3.5 to 1
- Standing wire ropes must be replaced if they have more than how many broken
- Five
- Four 1 / 2
to 1
wires in one stand? - ANSWER-A. Three
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D. All of the above ( answer: D)
- What is the minimum design factor required for right regular lay main, boom
- According to ASME B30.5 mobile crane standard, how many randomly
or auxiliary hoist rope? - ANSWER-3.5 to 1
distributed broken wires in rotation-resistant hoist wire rope is cause for considering replacement of the rope? - ANSWER-2 broken wire in 6 rope diameter
67. The rated capacity indicator has been designed to: - ANSWER-Provide the
operator with information regarding the boom length, boom angle, boom tip height, working radius, rated load and total calculated weight being lifted by the crane.
- What is the safety factory required when using rotating resistant wire rope and
- A stable load is one in which the center of gravity of the load is directly below
lifting a personal platform? - ANSWER-10
the main hook and is: - ANSWER-Below the lowest point of attachment of the
slings.
81. Wire rope slings must be taken out of service when: - ANSWER-Five our more
broken wires are found in one strand of one rope lay.
- what is the correct procedure when placing a shackle on a crane hook? -
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ANSWER-Place the shackle pin in the hook
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