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.NCCCO OVERHEAD CRANE EXAM -
ACTUAL EXAM 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A
What is the purpose of the upper limit switch (the only one required by
OSHA)? - ANSWER- Limit the hoist travel
When any machinery or apparatus is found to be defective or inoperative
on the crane, the person
discovering this condition should? - ANSWER- Report it to the
supervisor
When loss of power occurs, the crane operator should? - ANSWER- Put
controllers in off position
An object to be lifted is rectangular in shape and measures 5' long × 3'
wide x2' high. The volume
of this object is? - ANSWER- 30 cubic feet
A floor weight limitation is posted at 700 pounds per square foot
maximum. Before lowering a load
down onto this floor that is calculated at 900 pounds per square foot,
what must be done? - ANSWER- Install cribbing to decrease surface
bearing pressure
The term "Lay Length" when referring to wire rope is equal to? -
ANSWER- The distance it takes one strand to make one complete
revolution around the center core
According to OSHA, rated capacity rigging charts will aid you when? -
ANSWER- Determining if the rigging equipment meets all criteria
established by law
If possible, always try to keep horizontal sling angles? - ANSWER-
Greater than 30 degrees
Whenever a situation calls for placing both ends of a sling into a hook or
placing more than one sling into a hook, what piece of rigging hardware
for making this connection should be used? - ANSWER- A shackle
How can shock loading of rigging equipment be prevented? -
ANSWER- By applying loads to rigging equipment more slowly when
lifting
What are the runways on which the crane runs up and down the plant
called? - ANSWER- Rails
What is the minimum safety factor for overhead crane wire ropes? -
ANSWER- 5 to 1Powered by TCPDF (www.tcpdf.org)
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