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NCCCO CORE exam questions and answers
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NCCCO CORE exam questions and answers
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NCCCO CORE exam 2024-2025 questions and answersHow can the LMI's boom length or load radius reading be verified? - ANSWER>>Actual
measurements
On mobile cranes, what does the boom angle indicator show the operator? - ANSWER>>Angle
of boom to horizontal
What is the device called that automatically stops the boom when it nears the cranes maximum
angle? - ANSWER>>Boom hoist limiting
When the number of layers of wire rope on a drum increases the: - ANSWER>>Allowable line
pull decreases
On a mobile crane, side loading of the boom could be caused by which of the following? -
ANSWER>>Starting or stopping the swing too rapidly
Which person listed below, has the responsibility for determining the correct weight of a load? -
ANSWER>>Lift Director
What must an operator do when an operator leaves the controls of the crane from an extended
period of time? - ANSWER>>Apply all brakes and dogs, and lower the load to the ground
,When should a tag line be used, during the hoisting of material? - ANSWER>>When the rotation
of the load would be dangerous
What percentage of the rated capacity of a mobile crane must be used when lifting with two
cranes attached to the same load? - ANSWER>>75%
When lifting a load with two mobile cranes, it is very important to: - ANSWER>>Keep the hoist
lines of both cranes vertical
What is the minimum design factor required for a regular lay, boom or hoist wire rope? -
ANSWER>>3.5
It is important to know when lubricating crane hoist wire rope, that the lubricant must: -
ANSWER>>not hinder visual inspection
How often is the competent person required to inspect the running wire ropes on a mobile
crane? - 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? - 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? - ANSWER>>2
On whose recommendations should a mobile crane preventative maintenance program be
developed? - 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: - ANSWER>>Center of rotation of the crane
On a mobile crane, should the load be applied when determining the proper boom angle? -
ANSWER>>Yes
On a mobile cranes range digram, boom length and boom angle can be used to determine? -
ANSWER>>Load radius
On a mobile crane, what is the weight of the slowed jib that is deducted in load chart
calculations called? - ANSWER>>Effective weight
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