Mobile Crane Operator Core Review
Questions With Correct Answers
What is the purpose of placing mats or cribbing under outrigger floats?
| | | | | | | | | | |
Distribute over a larger area.
| | | |
Where is the best location for leveling a crane?
| | | | | | | |
Upperworks.
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 ground, what
| | | | | | | | | | | |
support condition should be considered?
| | | |
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?
| | | |
Keeping 90° angle between cylinder rod and pad.
| | | | | | |
When may blocking (cribbing) be placed under outrigger beams on
| | | | | | | | | |
mobile cranes?|
Never approved.
|
Mobile cranes should be level to within what percent of grade?
| | | | | | | | | |
1%
Timber crane mats work best when they are:
| | | | | | |
bolted together.
|
When arriving in the crane at the job site, the operator should first
| | | | | | | | | | | | |
determine the condition of the:
| | | |
,access roads. |
What surface listed below would NOT be a good location for assembly
| | | | | | | | | | | |
or setup of a mobile crane?
| | | | |
Above underground vaults.
| |
Each outrigger pad and its blocking should be sufficient to support?
| | | | | | | | | |
The total weight of the crane and its load.
| | | | | | | |
How does high wind affect a mobile crane with a long boom?
| | | | | | | | | | |
Introduces side load onto the boom | | | | |
When is the only time the outrigger beams should be less than fully
| | | | | | | | | | | |
extended?
The load chart indicates that this is allowed.
| | | | | | |
, What is the primary purpose for a rooster sheave or auxiliary boom
| | | | | | | | | | | |
point sheave?
|
Separate the load hoist lines. | | | |
Eccentric main boom tip reeving causes which of the following:
| | | | | | | | |
twisting of the main boom.
| | | |
Which type of wire rope listed below is installed on most cranes?
| | | | | | | | | | |
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.
| | | | | | | | | | |
1/2 inch.
|
Which of the following is classified as a standing wire rope?
| | | | | | | | | |
Pendant line. |
Questions With Correct Answers
What is the purpose of placing mats or cribbing under outrigger floats?
| | | | | | | | | | |
Distribute over a larger area.
| | | |
Where is the best location for leveling a crane?
| | | | | | | |
Upperworks.
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 ground, what
| | | | | | | | | | | |
support condition should be considered?
| | | |
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?
| | | |
Keeping 90° angle between cylinder rod and pad.
| | | | | | |
When may blocking (cribbing) be placed under outrigger beams on
| | | | | | | | | |
mobile cranes?|
Never approved.
|
Mobile cranes should be level to within what percent of grade?
| | | | | | | | | |
1%
Timber crane mats work best when they are:
| | | | | | |
bolted together.
|
When arriving in the crane at the job site, the operator should first
| | | | | | | | | | | | |
determine the condition of the:
| | | |
,access roads. |
What surface listed below would NOT be a good location for assembly
| | | | | | | | | | | |
or setup of a mobile crane?
| | | | |
Above underground vaults.
| |
Each outrigger pad and its blocking should be sufficient to support?
| | | | | | | | | |
The total weight of the crane and its load.
| | | | | | | |
How does high wind affect a mobile crane with a long boom?
| | | | | | | | | | |
Introduces side load onto the boom | | | | |
When is the only time the outrigger beams should be less than fully
| | | | | | | | | | | |
extended?
The load chart indicates that this is allowed.
| | | | | | |
, What is the primary purpose for a rooster sheave or auxiliary boom
| | | | | | | | | | | |
point sheave?
|
Separate the load hoist lines. | | | |
Eccentric main boom tip reeving causes which of the following:
| | | | | | | | |
twisting of the main boom.
| | | |
Which type of wire rope listed below is installed on most cranes?
| | | | | | | | | | |
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.
| | | | | | | | | | |
1/2 inch.
|
Which of the following is classified as a standing wire rope?
| | | | | | | | | |
Pendant line. |
