Overhead Crane Exam Prep (2025 Update) Questions
and Verified Answers | 100% Correct
A shouldered eye bolt, that cannot be seated down all the way
onto a load, due to the uneven surface shape of the load, can be
used to make a lift when? .....ANSWER.....Only if the eye bolt is
loaded vertically; no side load.
What is true when comparing a reeving configuration, of 4 parts
of line to 2 parts? .....ANSWER.....4 parts will raise or lower the
hook block 1/2 as as fast as 2 parts.
What are trolley and bridge bumpers for? .....ANSWER.....To
prevent over traveling of the bridge and trolley.
What is the weight of a steel plate, 2' x 6' x 3", if steel weighs
approx 490 lbs/cuft? .....ANSWER.....1,470 lbs
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When a lower limit device is not being used, what is the minimum
number of wraps requires to be left on the drum, when the hook
is at the lowest point? .....ANSWER.....2 full wraps
While trolleying a load a long distance, which of these
statements is correct? .....ANSWER.....The motors can overheat,
while using only the intermediate points for trolleying.
If the hoist drum reverse winds, what could happen?
.....ANSWER.....Two-blocking.
You are signaling an overhead crane, standing with the load
between you and the operator. You hold your right hand up with
your palm facing the operator and the load, you move your
hand horizontally towards the operator and load, while keeping
your hand open. What action should the operator respond with?
.....ANSWER.....Bridge travel in the direction indicated.
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Which of the following is not required by FED-OSHA to be on an
identification tag for chain slings? .....ANSWER.....Date of
Manufacture.
What could cause a wire rope to bird cage?
.....ANSWER.....Mistreatment such as overloading, pulling through
tight sheaves, sudden stops, and wound on too small a drum.
The direction of wires and strands in a wire rope is called
.....ANSWER.....Rope lay
What is span on an overhead crane? .....ANSWER.....Horizontal
distance center to center of runway rails.
When using a softener between a wire rope sling and a load,
what size should the softener be? .....ANSWER.....7 times the rope
diameter.
What is the main reason a kink will reduce the strength of wire
rope? .....ANSWER.....The strands will be loaded unevenly at the
kink.
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When using a 2-legged basket hitch, what would having a high
sling angle cause? (All angles are horizontal) .....ANSWER.....A
higher sling angle will cause less stress per leg than a lower sling
angle.
What is correct concerning a load test, per ASME B30.2?
.....ANSWER.....A test load must be travelled the full runway
length, in both directions.
A load you need to pick weighs 54,000 lbs; the rigging weighs
1,150 lbs. The SWL for the wire rope is 14,000 lbs. How many
parts of line are required to pick this load? .....ANSWER.....4 POL
According to FED-OSHA, what is required to be a qualified
rigger? .....ANSWER.....They must be a qualified person.
Define a qualified person, as defined by OSHA.
.....ANSWER.....A person who by possessions of a recognized
degree, certificate, or professional standing, or who by extensive
knowledge, training and experience, successfully demonstrated