NCCCO CORE FINAL EXAM NEWEST ACTUAL EXAM COMPLETE 200 QUESTIONS AND CORRECT
DETAILED ANSWERS
When may blocking (cribbing) be placed under outrigger beams on mobile cranes? - ANSWER-Never
approved
Mobile cranes should be level to within what percent of grade? - ANSWER-1%
Timber crane mats work best when they are - ANSWER-Bolted together
When arriving in the crane at the job site, the operator should first determine the condition of -
ANSWER-access roads
What surface listed below would NOT be a good location for assembly or setup of a mobile crane? -
ANSWER-Above underground vaults
Each outrigger pad and its blocking should be sufficient to support? - ANSWER-The total weight of the
crane and its load
How does high wind affect a mobile crane with a long boom? - ANSWER-Introduces side load onto the
boom
When is the only time the outrigger beams should be less than fully extended? - ANSWER-The load chart
indicates that this is allowed.
Eccentric main boom tip reeving causing which of the following: - ANSWER-Twisting of the main boom
Which type of wire rope listed below is installed on most cranes? - ANSWER-Right regular lay
The hoist drum flange shall extend a minimum of ________ over the top layer of wire rope at all times
while crane is in operation. - ANSWER-1/2 inch
, Which of the following is classified as a standing wire rope? - ANSWER-Pendant line.
When lifting on outriggers the floats or pads should always be: - 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? - 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
DETAILED ANSWERS
When may blocking (cribbing) be placed under outrigger beams on mobile cranes? - ANSWER-Never
approved
Mobile cranes should be level to within what percent of grade? - ANSWER-1%
Timber crane mats work best when they are - ANSWER-Bolted together
When arriving in the crane at the job site, the operator should first determine the condition of -
ANSWER-access roads
What surface listed below would NOT be a good location for assembly or setup of a mobile crane? -
ANSWER-Above underground vaults
Each outrigger pad and its blocking should be sufficient to support? - ANSWER-The total weight of the
crane and its load
How does high wind affect a mobile crane with a long boom? - ANSWER-Introduces side load onto the
boom
When is the only time the outrigger beams should be less than fully extended? - ANSWER-The load chart
indicates that this is allowed.
Eccentric main boom tip reeving causing which of the following: - ANSWER-Twisting of the main boom
Which type of wire rope listed below is installed on most cranes? - ANSWER-Right regular lay
The hoist drum flange shall extend a minimum of ________ over the top layer of wire rope at all times
while crane is in operation. - ANSWER-1/2 inch
, Which of the following is classified as a standing wire rope? - ANSWER-Pendant line.
When lifting on outriggers the floats or pads should always be: - 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? - 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
