Mobile Crane Operator Core
Review Questions &
ANSWERS(RATED A+)
Distribute over a larger area. - ANSWER What is the purpose of
placing mats or cribbing under outrigger floats?
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 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.
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.
Review Questions &
ANSWERS(RATED A+)
Distribute over a larger area. - ANSWER What is the purpose of
placing mats or cribbing under outrigger floats?
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 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.
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.
