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NCCCO Tower Exam 2024 Questions And Answers Graded A+
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NCCCO Tower Exam 2024 Questions And Answers Graded A+...
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NCCCO Tower Exam 2024 Questions And Answers Graded A+When tower crane is erected/dismantled, written instructions must be - Answer On site
Tower crane erection/dismantling shall be performed under direct supervision of the -
Answer Designated person
What is the minimum clearance from obstruction when the tower crane freely rotates
360•? - Answer 6 ft 6 in
What must the crane operator do when a load is suspended - Answer Remain at the
controls
How often should the hoist rope be lubricated? - Answer Every 200 hours
If block is twisted, it may be necessary to fix the ______________ and make a few empty
runs with the hook and trolley and then reopen - Answer Twist compensator
How many wraps shall be on the drum when the block is at its lowest point - Answer 3
Radius on a crane chart refers to - Answer Center of rotation to center of gravity of load
or hook
What would call for a running rope to be taken out of service - Answer 12 randomly
distributed broken wires in one lay or 4 in one strand in one lay
maintainence personnel are only permitted to operate crane when - Answer Only when
performing the maintenance duties
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