Examination
180 minutes
Instructions:
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2. Answer all questions.
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NCCCO - National Commission for the Certification of
Crane Operators 2024-2025
NCCCO Tower Crane Operator Certification Exam
Review Questions with Verified Solutions | 100% Pass
Guaranteed | Graded A+ |
Read All Instructions Carefully and Answer All the
Questions Correctly Good Luck: -
When working on rubber, cranes are rated at what
percentage of tipping:
a) 70%
b) 75%
c) 80%
d) 85% - =Answer>> 75%
When a crane is working "on outriggers" the only time
they should be less than fully extended is when:
a) working alongside the highway and cannot block a
lane
b) you are handling light loads
c) the main boom is being lifted
d) there is a load chart for this operation - =Answer>>
there is a load chart for this operation
A truck crane set up with the outriggers extended and
set, and tires touching the ground, the operator should
refer to what load chart:
a) intermediate chart
b) over the front chart
c) on rubber chart
d) 85% of the main chart - =Answer>> on rubber
chart
Blocking paced under the ends of crawler tracks will:
a) increase the crane's stability when operating over
front or back
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b) increase the crane's stability when operating over
side
c) stop crane from traveling unexpectedly
d)stop crane from sliding unexpectedly - =Answer>>
increase the crane's stability when operating over front
or back
What quadrant produces the least amount of ground
pressure on a lattice crawler:
a) corner
b) side
c) front
d) rear - =Answer>> side
During assembly where should you attach slings to lift
boom sections:
a) to the top of main chords
b) to the top end fittings
c) 2 feet from end of section
d) center of boom section - =Answer>> to the top end
fittings
When a lattice boom truck crane is set up on
outriggers, the floats or pads should always be:
a) large enough to support two times the applied load
b) with the tires firmly on the ground
c) secured to the outriggers
d) placed on the mats - =Answer>> secured to the
outriggers
A truck crane operating with outriggers fully extended
and set, but does not have a front outrigger, the
operator should:
a) operate over the front with caution
b) refer to the manufacturer's working area diagram
c) block under the bumper to provide more stability
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