Mobile Crane Questions Test #8 Questions and Answers 100% Verified
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Mobile Crane Operator
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Mobile Crane Operator
Mobile Crane Questions Test #8 Questions and Answers 100% VerifiedMobile Crane Questions Test #8 Questions and Answers 100% VerifiedMobile Crane Questions Test #8 Questions and Answers 100% VerifiedMobile Crane Questions Test #8 Questions and Answers 100% Verified
What is the greatest cause of fat...
Mobile Crane Questions Test #8
Questions and Answers 100%
Verified
What is the greatest cause of fatalities in crane related accidents? - ANSWER - Crew
members killed from electrocution during contact with powerlines.
Which is the following is not a characteristic of polypropylene tag line? - ANSWER -
Strongest rope available.
Which of the two methods shown is CORRECT when winding wire rope onto a drum?
- ANSWER - A
What is the signal person directing the operator to do with fist in front of chest and
the thumb tapping chest? - ANSWER - Telescope boom out,
According to OSHA, which of the following is NOT required for a monthly crane
inspection? - ANSWER - Checking the fluid in the differential.
You are operating a crane, slowly hoisting a steel I-beam off a truck. The cranes LMI
shows you are at 75% capacity and the beam is still resting on the truck, according
to OSHA 1926.14179(o)(3)(ii), what is the proper procedure you must follow? -
ANSWER - Stop the lift and verify the weight of the beam with the foreman.
According to OSHA 1926.251, how much length must there be between splices or
end fittings on slings? - ANSWER - 10 rope diameters.
What effect can this procedure have on the sling? - ANSWER - Create a low choke
angle and lessen capacity.
T/F A double wrap basket hitch has twice the capacity of a basket hitch? - ANSWER -
False
, You are operating the mobile crane pictured with the outriggers configured as
shown and you are using the manufacturers correct specified load chart. What issue
might still be a concern if you swing the boom over the fully extended side and start
working in this area - ANSWER - Backward stability.
Which of the following would be the BEST method to prevent sheave damage when
placing boom tip on the ground? - ANSWER - Place wood blocking behind sheaves or
sheave guards to elevate off the ground.
When operating a crane, which of the following would NOT be an effect of using a
hoist hook with no overhaul weight? - ANSWER - The rope winding unevenly on the
drum with gaps.
Your are working in a manbasket being held up by a mobile crane and the wind
begins to blow over 20 mph, what should you do? - ANSWER - Discuss the situation
with the operator and/or foreman to determine if it's safe to keep working.
What is the definition of "REEVING"? - ANSWER - The process in which wire rope is
arranged through sheave blocks to gain mechanical advantage for lifting.
When lifting personnel platforms, which of the following items are NOT allowed to
be part of the wire rope bridle and associated rigging used to lift the platform?
(OSHA) - ANSWER - Hooks and non-locking spring activated latches.
You are operating a lattice boom truck crane that is properly setup with no front
outrigger, as you swing the load over the front, the combined center of gravity of
the carrier and the upperworks will move which way? - ANSWER - Closer to the
tipping axis.
According to OSHA 1926.1410(d), which of the following is NOT an essential
element required when operating a mobile crane closer than the minimum
clearance distance of a powerline? - ANSWER - Rotation resistant running rope
installed on all hoist drums.
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