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CCO PRACTICE EXAM WITH QUESTIONS AND 100% SURE ANSWERS
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CCO PRACTICE EXAM WITH QUESTIONS AND 100% SURE ANSWERS
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CCO PRACTICE EXAMWITH QUESTIONS AND
100% SURE ANSWERS
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
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
d) only operate over the front at a 50% reduction of
the load chart <<<<ANSWER>>>>refer to the
manufacturer's working area diagram
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