NCCCO Mobile Crane Exam Questions and
Answers |Fall Update | 100% Correct Latest
(Graded A+)
Question 1
Under which circumstance is a crack in the windshield of a crane cab okay?
a. As long as it causes no visible distortion that would interfere with safe
operations b. As long as it is less than 6 inches long
c. As long as the windshield is replaced on the next annual inspection d. It is
never okay
Correct Answer
a.
Question 2
During crane assembly, the counter weight should be installed when?
Correct Answer
Before raising the boom
Question 3
Upon completion of assembly of the crane, what must be done?
Correct Answer
An inspection to ensure that manufacturer specifications are met
Page 1 of 35
,Question 4
Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the
manufacturer states otherwise?
a. The side
b. The rear
c. The front
d. The
outriggers
Correct Answer
c.
Question 5
The boom angle is the angle between ___________________ .
Correct Answer
the ground and centerline of the boom, between sheaves and heel pins
Question 6
Where must the operator's manual be kept during crane
operations? a. The operator's manual must be kept in a location
that is readily available b. The operator's manual must be kept in
the cab at all times
c. The operator's manual must be kept in the dispatch office
d. The operator's manual must be kept in a secure place
Correct Answer
b.
Page 2 of 35
,Question 7
Where do you find recommended reeving for the hoist lines?
Correct Answer
Owner's manual
Question 8
The load hoist drum flange shall be _________________ .
Correct Answer
1/2 in. or higher over the top layer of rope
Question 9
Not extending telescoping boom sections equally; what may occur?
Correct Answer
Longer section collapse
Page 3 of 35
, Question 10
Where is the tipping axis of a crawler crane located?
a. It is always at the centerline of the idler or sprocket
b. It depends if the idler or sprocket are in line or offset from the
track rollers c. It is through the centerline of the crane cab
d. It is through the boom butt section
Correct Answer
b.
Question 11
According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the
crane's rated capacity?"
a. 45%
b. 50%
c. 75%
d. 85%
Correct Answer
b.
Question 12
When may a crane be overloaded?
Correct Answer
Never
Page 4 of 35
Answers |Fall Update | 100% Correct Latest
(Graded A+)
Question 1
Under which circumstance is a crack in the windshield of a crane cab okay?
a. As long as it causes no visible distortion that would interfere with safe
operations b. As long as it is less than 6 inches long
c. As long as the windshield is replaced on the next annual inspection d. It is
never okay
Correct Answer
a.
Question 2
During crane assembly, the counter weight should be installed when?
Correct Answer
Before raising the boom
Question 3
Upon completion of assembly of the crane, what must be done?
Correct Answer
An inspection to ensure that manufacturer specifications are met
Page 1 of 35
,Question 4
Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the
manufacturer states otherwise?
a. The side
b. The rear
c. The front
d. The
outriggers
Correct Answer
c.
Question 5
The boom angle is the angle between ___________________ .
Correct Answer
the ground and centerline of the boom, between sheaves and heel pins
Question 6
Where must the operator's manual be kept during crane
operations? a. The operator's manual must be kept in a location
that is readily available b. The operator's manual must be kept in
the cab at all times
c. The operator's manual must be kept in the dispatch office
d. The operator's manual must be kept in a secure place
Correct Answer
b.
Page 2 of 35
,Question 7
Where do you find recommended reeving for the hoist lines?
Correct Answer
Owner's manual
Question 8
The load hoist drum flange shall be _________________ .
Correct Answer
1/2 in. or higher over the top layer of rope
Question 9
Not extending telescoping boom sections equally; what may occur?
Correct Answer
Longer section collapse
Page 3 of 35
, Question 10
Where is the tipping axis of a crawler crane located?
a. It is always at the centerline of the idler or sprocket
b. It depends if the idler or sprocket are in line or offset from the
track rollers c. It is through the centerline of the crane cab
d. It is through the boom butt section
Correct Answer
b.
Question 11
According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the
crane's rated capacity?"
a. 45%
b. 50%
c. 75%
d. 85%
Correct Answer
b.
Question 12
When may a crane be overloaded?
Correct Answer
Never
Page 4 of 35
