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NCCCO 3 Questions with Correct Answers.
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NCCCO 3 Questions with Correct Answers.
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NCCCO 3 Questions with Correct Answers1. The crane is out of level, you release the swing brake, the boom
swings downhill, your: Correct Answer-load radius increases.
1. Blocking can be placed under the ends of tracks to: Correct Answer-
increase the crane's stability when operating over front or back.
1. What quadrant produces the least amount of ground pressure on a
lattice crawler: Correct Answer-side.
1. On lattice boom cranes fitted with power load lowering, a heavy load
should be lowered by using the: Correct Answer-power load-lowering
feature and the foot brake.
1. Abruptly stopping a rapid swing on a long-boom mobile crane will
produce what major effect? Correct Answer-Overturning the crane or
collapsing the boom.
1. When the boom handle is released to its center position, which action
should be expected? Correct Answer-The boom hoist will be held
stationary.
1. On a lattice boom crawler crane, the main boom length is measured
from the: Correct Answer-center of the boom heel pins to the center of
the boom tip sheave.
, 1. You can't level your crawler crane: Correct Answer-don't operate
crane.
1. What effect does having the crawlers retracted have on a crawler
crane with a long boom? Correct Answer-Decrease in capacity.
1. Your crawler crane is on a barge, it is necessary to: Correct Answer-
secure the crane to the barge.
1. A pin-connected lattice boom is being dismantled. After connecting
the equalizer (bridle) to the connecting lugs on the boom, which boom
connecting pins should be removed first? Correct Answer-Lower
connection pins, located at and ahead of the equalizer.
1. When using a mobile crane on a barge, the crane's load capacity chart
shall be: Correct Answer-replaced by a list chart.
1. How many broken wires are permitted at the end connection of a
pendant before it must be taken out of service? Correct Answer-1
1. If high winds are expected and the lattice boom crane must be secured
pointing into the wind, then the hook should be: Correct Answer-secured
to a solid structure directly below the boom point
1. When assembling a lattice boom on most crawler cranes using inserts
of different lengths, which insert section generally should be closest to
the boom foot? Correct Answer-10 ft.
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