CCO PRACTICE EXAM/COMPREHENSIVE GUIDE/ACTUAL EXAM
CCO PRACTICE EXAM
QUESTIONS WITH WELL DETAILED ANSWERS/NEWEST UPDATE
Study online at https://quizlet.com/_6bd000
1. When working on rubber, cranes are rated at what 75%
percentage of tipping:
a) 70%
b) 75%
c) 80%
d) 85%
2. When a crane is working "on outriggers" the only time there is a load chart for this
they should be less than fully extended is when: operation
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
3. A truck crane set up with the outriggers extended on rubber chart
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
4. Blocking paced under the ends of crawler tracks will: increase the crane's sta-
a) increase the crane's stability when operating over bility when operating over
front or back 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
5. side
, CCO PRACTICE EXAM
Study online at https://quizlet.com/_6bd000
What quadrant produces the least amount of ground
pressure on a lattice crawler:
a) corner
b) side
c) front
d) rear
6. During assembly where should you attach slings to lift to the top end fittings
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
7. When a lattice boom truck crane is set up on outrig- secured to the outriggers
gers, 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
8. A truck crane operating with outriggers fully extended refer to the manufacturer's
and set, but does not have a front outrigger, the oper- working area diagram
ator 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
9. When a crane is operating on properly set outriggers, point where the outriggers
the tipping axis is located at the: touch the ground
a) radius of the counterweight
CCO PRACTICE EXAM
QUESTIONS WITH WELL DETAILED ANSWERS/NEWEST UPDATE
Study online at https://quizlet.com/_6bd000
1. When working on rubber, cranes are rated at what 75%
percentage of tipping:
a) 70%
b) 75%
c) 80%
d) 85%
2. When a crane is working "on outriggers" the only time there is a load chart for this
they should be less than fully extended is when: operation
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
3. A truck crane set up with the outriggers extended on rubber chart
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
4. Blocking paced under the ends of crawler tracks will: increase the crane's sta-
a) increase the crane's stability when operating over bility when operating over
front or back 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
5. side
, CCO PRACTICE EXAM
Study online at https://quizlet.com/_6bd000
What quadrant produces the least amount of ground
pressure on a lattice crawler:
a) corner
b) side
c) front
d) rear
6. During assembly where should you attach slings to lift to the top end fittings
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
7. When a lattice boom truck crane is set up on outrig- secured to the outriggers
gers, 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
8. A truck crane operating with outriggers fully extended refer to the manufacturer's
and set, but does not have a front outrigger, the oper- working area diagram
ator 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
9. When a crane is operating on properly set outriggers, point where the outriggers
the tipping axis is located at the: touch the ground
a) radius of the counterweight
