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Practice questions for this set
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Operating a mobile crane with a long boom, on uneven ground, what support
condition should be considered?
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Keeping a 90° angle between
2 bolted together.
cylinder rod and pad.
3 Above underground vaults.
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Terms in this set (136)
What is the purpose of Distribute over a larger area.
, placing mats or cribbing
under outrigger floats?
Where is the best location for Upperworks.
leveling a crane?
Before leveling a mobile there is no weight of the crane bearing on any tires
crane on outriggers, an
operator should ensure:
Keeping a 90° angle between Operating a mobile crane with a long boom, on uneven
cylinder rod and pad. ground, what support condition should be considered?
Keeping 90° angle between Operating a mobile crane with a long boom, on uneven
cylinder rod and pad. ground, what support condition should be considered?
Never approved. When may blocking (cribbing) be placed under outrigger beams
on mobile cranes?
1% Mobile cranes should be level to within what percent of
grade?
bolted together. Timber crane mats work best when they are:
access roads. When arriving in the crane at the job site, the operator should first
determine the condition of the:
Above underground vaults. What surface listed below would NOT be a good location for
assembly or setup of a mobile crane?
The total weight of the crane Each outrigger pad and its blocking should be sufficient to
and its load. support?
Introduces side load onto the How does high wind affect a mobile crane with a long boom?
boom
The load chart indicates that When is the only time the outrigger beams should be less
this is allowed. than fully extended?