NCCCO COMPREHENSIVE EXAMINATION
TEST QUESTIONS AND SOLUTIONS FULLY
VERIFIED
●● Upperworks.
Answer: Where is the best location for leveling a crane?
●● there is no weight of the crane bearing on any tires
Answer: Before leveling a mobile crane on outriggers, an operator
should ensure:
●● Operating a mobile crane with a long boom, on uneven ground, what
support condition should be considered?
Answer: Keeping a 90° angle between cylinder rod and pad.
●● Operating a mobile crane with a long boom, on uneven ground, what
support condition should be considered?
Answer: Keeping 90° angle between cylinder rod and pad.
●● 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 the:
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.
, ●● What is the primary purpose for a rooster sheave or auxiliary boom
point sheave?
Answer: Separate the load hoist lines.
●● Eccentric main boom tip reeving causes 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: secured to the outriggers cylinder.
●● How many randomly broken wires in a lay length must there be on a
mobile cranes hoist line, before it should be removed from service?
TEST QUESTIONS AND SOLUTIONS FULLY
VERIFIED
●● Upperworks.
Answer: Where is the best location for leveling a crane?
●● there is no weight of the crane bearing on any tires
Answer: Before leveling a mobile crane on outriggers, an operator
should ensure:
●● Operating a mobile crane with a long boom, on uneven ground, what
support condition should be considered?
Answer: Keeping a 90° angle between cylinder rod and pad.
●● Operating a mobile crane with a long boom, on uneven ground, what
support condition should be considered?
Answer: Keeping 90° angle between cylinder rod and pad.
●● 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 the:
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.
, ●● What is the primary purpose for a rooster sheave or auxiliary boom
point sheave?
Answer: Separate the load hoist lines.
●● Eccentric main boom tip reeving causes 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: secured to the outriggers cylinder.
●● How many randomly broken wires in a lay length must there be on a
mobile cranes hoist line, before it should be removed from service?
