NCCCO TELESCOPIC CORE REVIEW

NCCCO TELESCOPIC CORE REVIEW

QUESTIONS AND CORRECT DETAILED

ANSWERS WITH RATIONALES (VERIFIED

ANSWERS) / | ALREADY GRADED

A+ When lifting from the main boom, how is the effective weight of the fly/jib different in the erected position from that of the stowed position?

• Effective weight increases
• Effective weight decreases
• Effective weight is reduced 85%
• Effective weight is reduced 75% --PRECISE ANS--A. Effective weight

increases

Who must determine maximum speed for a mobile crane to travel with a suspended load?

• The competent person
• The job site
• The superintendent
• The craft foreman --PRECISE ANS--A. the competent person

How does the effective weight of a stowed extension relate to the actual weight of the extension?

• Lower than the actual weight
• Depends on the boom angle
• Higher than the actual weight
• Same as the actual weight --PRECISE ANS--C. higher than the actual weight 1 / 2

Using a telescopic mobile crane and lifting off the jib with the main boom partially extended, you should use to determine gross capacity

• Jib length
• Boom angle
• Radius

Boom length --PRECISE ANS--B. boom angle

If not listed in the load\capacity charts or notes for a telescopic boom crane

and you are between boom lengths, you should:

• Use the next longer length
• Use the next shorter length
• Use the closest to the actual length
• Use the next longest or the next shortest boom capacity, whichever is the

lower in capacity. --PRECISE ANS--D. Use the next longest or the next shortest boom capacity, whichever is the lower in capacity.

Which of the following is required to be on a mobile telescopic crane in order to lift a personnel platform?

• Boom length indicator
• Radio communication
• Free fall capability
• Two operators --PRECISE ANS--A. boom length indicator

When operating a rough terrain crane and extending the outrigger beams from the upper cab, you should?

• Boom up to 50 degrees
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