1B mass hoisting Questions With Solutions
What percentage of tipping is a crawler cranes stability rated at? 75
The point at which a crane tips is called Tipping axis
According to Massachusetts regulations as it pertains to hoisting equipment devices to prevent
the boom from falling over backw...
What percentage of tipping is a crawler cranes stability rated at? 75
The point at which a crane tips is called Tipping axis
According to Massachusetts regulations as it pertains to hoisting equipment devices to prevent
the boom from falling over backward shall be considered adequate for this purpose? False
What are two main factors that limit the capacity of modern day cranes Structural strength
and stability
What is the major reason for most mobile crane accidents? Poor operation
When are you required to use cranes outriggers? When the operators manual or load chart
specifies that you need them
Under what circumstances can you lift the crane off the ground with the outriggers? When
the operators manual says you can
, 1B mass hoisting Questions With Solutions
Can a boom bend(deflect) under normal operating conditions? Yes
What does swing mean? To rotate the upper structure of the crane
If a hydraulic hose ruptures, should you expect the boom to come crashing to the ground?
No
What is the minimum wraps of line that OSHA says that you must have on the drum? 2
What does a swing break do? It stops the upper structure from rotating
According to Massachusetts regulations as it pertains to hosting equipment each crane shall be
equipped with a mechanism which will cause the boom swing to be Started and stopped in
a manner sufficiently gradual to prevent damaging effects of torsion on the crane
It is not specifically required that an operator is to be protected with a cab when exposed to
overhead hazards False
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