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Nccco Tower Exam 7.2024 Questions And Answers With Verified Solutions 100% Correct!!!
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Nccco Tower Exam 7.2024 Questions And Answers With Verified Solutions 100% Correct!!!
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Nccco Tower Exam 7.2024 QuestionsAnd Answers With Verified Solutions
100% Correct!!!
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
The radius on a crane chart refers to - ANSWER✔✔Center of rotation to center of
gravity of load or hook
What would cal 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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