4. Regular constructed crane hoist wire rope shall be taken out of service when any of the following conditions exist - ANSWERa. In running ropes, six randomly distributed broken wires in one lay b. Three broken wires in one strand in one lay C. Wear of one-third the original diameter of outside in...
4. Regular constructed crane hoist wire rope shall be taken out of service when any of the following
conditions exist - ANSWERa. In running ropes, six randomly distributed broken wires in one lay b.
Three broken wires in one strand in one lay C. Wear of one-third the original diameter of outside
individual wires d. All of the above (answer: d)
6. What is the safety factor for regular lay hoist wire rope? - ANSWER3.5 to 1
10. What is the SWL of RRL 6x25 IWRC Hoist Wire Rope? - ANSWER3.5 to 1
5. What is the safety factor for rotation resistant hoist wire rope? - ANSWER5.0 to 1
11. What is the SWL of boom hoist wire rope? - ANSWER3.5 to 1
14. Standing wire ropes must be replaced if they have more than how many broken wires in one
stand? - ANSWERA. Three
B. Five
C. Four
D. All of the above ( answer: D)
20. What is the minimum design factor required for right regular lay main, boom or auxiliary hoist
rope? - ANSWER3.5 to 1
81. Wire rope slings must be taken out of service when: - ANSWERFive our more broken wires are
found in one strand of one rope lay.
92. what is the correct procedure when placing a shackle on a crane hook? - ANSWERPlace the
shackle pin in the hook
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