CCO PRACTICE EXAM QUESTIONS WITH ANSWERS

CCO PRACTICE EXAM QUESTIONS WITH|\ |\ |\ |\




ANSWERS
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When working on rubber, cranes are rated at what
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percentage of tipping: |\ |\




a) 70% |\




b) 75% |\




c) 80% |\




d) 85% - CORRECT ANSWERS ✔✔75%
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When a crane is working "on outriggers" the only time
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they should be less than fully extended is when:
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a) working alongside the highway and cannot block a lane
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b) you are handling light loads
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c) the main boom is being lifted
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d) there is a load chart for this operation - CORRECT
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ANSWERS ✔✔there is a load chart for this operation |\ |\ |\ |\ |\ |\ |\ |\




A truck crane set up with the outriggers extended and
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set, and tires touching the ground, the operator should
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refer to what load chart:
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a) intermediate chart
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,b) over the front chart
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c) on rubber chart
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d) 85% of the main chart - CORRECT ANSWERS ✔✔on
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rubber chart |\




Blocking paced under the ends of crawler tracks will:
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a) increase the crane's stability when operating over front
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or back
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b) increase the crane's stability when operating over side
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c) stop crane from traveling unexpectedly
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d)stop crane from sliding unexpectedly - CORRECT
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ANSWERS ✔✔increase the crane's stability when |\ |\ |\ |\ |\ |\



operating over front or back |\ |\ |\ |\




What quadrant produces the least amount of ground
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pressure on a lattice crawler: |\ |\ |\ |\




a) corner
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b) side
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c) front
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d) rear - CORRECT ANSWERS ✔✔side
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During assembly where should you attach slings to lift
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boom sections: |\




a) to the top of main chords
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, b) to the top end fittings
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c) 2 feet from end of section
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d) center of boom section - CORRECT ANSWERS ✔✔to the
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top end fittings
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When a lattice boom truck crane is set up on outriggers,
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the floats or pads should always be:
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a) large enough to support two times the applied load
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b) with the tires firmly on the ground
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c) secured to the outriggers
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d) placed on the mats - CORRECT ANSWERS ✔✔secured
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to the outriggers
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A truck crane operating with outriggers fully extended
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and set, but does not have a front outrigger, the operator
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should:
a) operate over the front with caution
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b) refer to the manufacturer's working area diagram
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c) block under the bumper to provide more stability
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d) only operate over the front at a 50% reduction of the
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load chart - CORRECT ANSWERS ✔✔refer to the
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manufacturer's working area diagram |\ |\ |\