NCCCO CORE EXAM STUDY

NCCCO CORE EXAM | STUDY

QUESTIONS AND CORRECT

ANSWERS | LATEST /

When lifting on outriggers the floats or pads should always be:

• Correct Answer - Raised to touch the tires firmly on the ground.

What is the minimum design factor required for a regular lay, boom or hoist wire rope?

• Correct Answer - 3.5

It is important to know when lubricating crane hoist wire rope, that the

lubricant must:

• Correct Answer - not hinder visual inspection

How often is the competent person required to inspect the running wire ropes on a mobile crane?

• Correct Answer - Each shift

On mobile cranes, how many broken wires must be present in one strand of one lay for running wire rope to be removed from service? 1 / 3

• Correct Answer - 3

According to OSHA, what is the minimum number of full wraps of wire rope that must remain on hoist drums in all service conditions?

• Correct Answer - 2

On whose recommendations should a mobile crane preventative maintenance program be developed?

• Correct Answer - Crane manufacturer

On a mobile crane, the measurement for the load radius in this distance

from the center of gravity of the suspended load to the:

• Correct Answer - Center of rotation of the crane

On a mobile crane, should the load be applied when determining the proper boom angle?

• Correct Answer - Yes

On a mobile cranes range digram, boom length and boom angle can be used to determine?

• Correct Answer - Load radius 2 / 3

On a mobile crane, what is the weight of the slowed jib that is deducted in load chart calculations called?

• Correct Answer - Effective weight

When determining boom tip elevation for a mobile crane, the user could:

use the range diagram

• Correct Answer - use the range diagram

When lifting off the main boom, how is the effective weight of the flyjib different in the erected position from that of the stowed position?

• Correct Answer - Effective weight increases

Why do most crane manufacturers reduce load capacity for duty-cycle operations?

• Correct Answer - Side loading forces may occur

What is the difference between anti-two-block warning device and an anti-two-block prevention device?

• Correct Answer - Warning device only warns, but prevention devices

will stop the functions How can the LMI's boom length or load radius reading be verified?

• Correct Answer - Actual measurements
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