Mobile Crane Operator Core Review Questions
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Distribute over a larger area. What is the purpose of placing mats or cribbing under outrigger floats?
Upperworks. Where is the best location for leveling a crane?
there is no weight of the crane bearing on any tires Before leveling a mobile crane on outriggers, an operator should ensure:
Operating a mobile crane with a long boom, on uneven Keeping a 90° angle between cylinder rod and pad.
ground, what support condition should be considered?
, Operating a mobile crane with a long boom, on uneven Keeping 90° angle between cylinder rod and pad.
ground, what support condition should be considered?
When may blocking (cribbing) be placed under outrigger Never approved.
beams on mobile cranes?
Mobile cranes should be level to within what percent of 1%
grade?
Timber crane mats work best when they are: bolted together.
When arriving in the crane at the job site, the operator access roads.
should first determine the condition of the:
What surface listed below would NOT be a good Above underground vaults.
location for assembly or setup of a mobile crane?
Each outrigger pad and its blocking should be sufficient The total weight of the crane and its load.
to support?
How does high wind affect a mobile crane with a long Introduces side load onto the boom
boom?
When is the only time the outrigger beams should be less The load chart indicates that this is allowed.
than fully
extended?
What is the primary purpose for a rooster sheave or Separate the load hoist lines.
auxiliary boom point sheave?
Eccentric main boom tip reeving causes which of the twisting of the main boom.
following:
Which type of wire rope listed below is installed on most Right regular lay.
cranes?
The hoist drum flange shall extend a minimum of _______ 1/2 inch.
over the top layer of wire rope at all times while crane is in
operation.
Which of the following is classified as a standing wire Pendant line.
rope?
When lifting on outriggers, the floats or pads should secured to the outriggers cylinder.
always be:
How many randomly broken wires in a lay length must 6
there be on a mobile cranes hoist line, before it should be
removed from service?
Save
Distribute over a larger area. What is the purpose of placing mats or cribbing under outrigger floats?
Upperworks. Where is the best location for leveling a crane?
there is no weight of the crane bearing on any tires Before leveling a mobile crane on outriggers, an operator should ensure:
Operating a mobile crane with a long boom, on uneven Keeping a 90° angle between cylinder rod and pad.
ground, what support condition should be considered?
, Operating a mobile crane with a long boom, on uneven Keeping 90° angle between cylinder rod and pad.
ground, what support condition should be considered?
When may blocking (cribbing) be placed under outrigger Never approved.
beams on mobile cranes?
Mobile cranes should be level to within what percent of 1%
grade?
Timber crane mats work best when they are: bolted together.
When arriving in the crane at the job site, the operator access roads.
should first determine the condition of the:
What surface listed below would NOT be a good Above underground vaults.
location for assembly or setup of a mobile crane?
Each outrigger pad and its blocking should be sufficient The total weight of the crane and its load.
to support?
How does high wind affect a mobile crane with a long Introduces side load onto the boom
boom?
When is the only time the outrigger beams should be less The load chart indicates that this is allowed.
than fully
extended?
What is the primary purpose for a rooster sheave or Separate the load hoist lines.
auxiliary boom point sheave?
Eccentric main boom tip reeving causes which of the twisting of the main boom.
following:
Which type of wire rope listed below is installed on most Right regular lay.
cranes?
The hoist drum flange shall extend a minimum of _______ 1/2 inch.
over the top layer of wire rope at all times while crane is in
operation.
Which of the following is classified as a standing wire Pendant line.
rope?
When lifting on outriggers, the floats or pads should secured to the outriggers cylinder.
always be:
How many randomly broken wires in a lay length must 6
there be on a mobile cranes hoist line, before it should be
removed from service?
