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GENERAL CRANE SAFETY QUESTIONS
WITH CORRECT ANSWERS 2026
The minimum crane team for a mobile crane on outriggers would
consist of-
A) The Crane Operator, Rigger Supervisor, and Crane Rigger
B) The Crane Operator, Crane Supervisor, Rigger Supervisor,
and
Crane Rigger
C) The Crane Operator, Crane Supervisor, and Crane Rigger
D) The Crane Operator and Rigger-in-Charge
E) The Crane Operator, Crane Walker, and Crane Rigger -
correct answer-C) The Crane Operator, Crane Supervisor, and
Crane Rigger
When operating floating cranes, you must start swinging or
rotating quickly and stop smoothly to prevent excessive barge list.
A) True
B) False - correct answer-B) False
Extending a telescoping boom without lowering the hoist may
result in "two-blocking" the crane.
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A) True
B) False - correct answer-A) True
All of the following require a license to operate EXCEPT a(n)-
A) Cab-operated category 3 bridge crane
B) Mobile hydraulic truck crane
C) Non-cab operated category 3 bridge crane
D) Articulating boom category 4 crane
E) Floor-operated category 2 bridge crane - correct answer-C)
Non-cab operated category 3 bridge crane
Which of the following lift types would NOT be considered a
complex lift?
A) Multiple-crane lifts
B) Oxygen/Acetylene bottles in racks designed for lifting
O C) Large geometric shapes
D) Loads with multi-level attachment points
E) Hazardous or explosive materials - correct answer-B)
Oxygen/Acetylene bottles in racks designed for lifting
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What is the minimum amount of rope that shall be on a grooved
drum and a smooth drum?
A) There is no minimum
B) 4 full wraps, 2 full wraps
C) 2 full wraps, 3 full wraps
D) 6 full wraps, 4 full wraps
E) 1 full wrap, 2 full wraps - correct answer-B) 4 full wraps, 2 full
wraps
The horizontal distance from the center of rotation of the crane to
the center of the hoist line(s) with load applied is called
A) Boom Length
B) Radius
C) Lift Zone
D) Quadrant
E) Circumference - correct answer-B) Radius
What is two-blocking, and why is two-blocking dangerous?
A) Two-blocking occurs when the hook contacts another block or
hook on the crane. It is dangerous because the hook could
damage the crane, causing loss of load control.
B) Two-blocking occurs when the block or hook contacts the
ground.
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It is dangerous because the wire rope may come off of the drum
and drop the block.
C) Two-blocking occurs when the hook block comes in contact
with the upper sheave block during hoisting of the hook. It is
dangerous because it could result in damage to the crane, parting
of the hoist lines, and dropping the load. - correct answer-C) Two-
blocking occurs when the hook block comes in contact with the
upper sheave block during hoisting of the hook. It is dangerous
because it could result in damage to the crane, parting of the hoist
lines, and dropping the load.
When should a tagline be used during lifting operations?
A) when lifting a load over or near electrical transmission lines
B) to prevent the load from swinging or rotating
C) when the supervisor approves their use
D) only when lifting the load to extreme heights - correct answer-
B) to prevent the load from swinging or rotating
What is the weight of a 24 square foot, 2 inch thick aluminum
plate with a unit weight of 15 lbs. per square foot of material per
inch of thickness?
A) 348 pounds
B) 720 pounds
C) 6,720 pounds
GENERAL CRANE SAFETY QUESTIONS
WITH CORRECT ANSWERS 2026
The minimum crane team for a mobile crane on outriggers would
consist of-
A) The Crane Operator, Rigger Supervisor, and Crane Rigger
B) The Crane Operator, Crane Supervisor, Rigger Supervisor,
and
Crane Rigger
C) The Crane Operator, Crane Supervisor, and Crane Rigger
D) The Crane Operator and Rigger-in-Charge
E) The Crane Operator, Crane Walker, and Crane Rigger -
correct answer-C) The Crane Operator, Crane Supervisor, and
Crane Rigger
When operating floating cranes, you must start swinging or
rotating quickly and stop smoothly to prevent excessive barge list.
A) True
B) False - correct answer-B) False
Extending a telescoping boom without lowering the hoist may
result in "two-blocking" the crane.
, Page | 2
A) True
B) False - correct answer-A) True
All of the following require a license to operate EXCEPT a(n)-
A) Cab-operated category 3 bridge crane
B) Mobile hydraulic truck crane
C) Non-cab operated category 3 bridge crane
D) Articulating boom category 4 crane
E) Floor-operated category 2 bridge crane - correct answer-C)
Non-cab operated category 3 bridge crane
Which of the following lift types would NOT be considered a
complex lift?
A) Multiple-crane lifts
B) Oxygen/Acetylene bottles in racks designed for lifting
O C) Large geometric shapes
D) Loads with multi-level attachment points
E) Hazardous or explosive materials - correct answer-B)
Oxygen/Acetylene bottles in racks designed for lifting
, Page | 3
What is the minimum amount of rope that shall be on a grooved
drum and a smooth drum?
A) There is no minimum
B) 4 full wraps, 2 full wraps
C) 2 full wraps, 3 full wraps
D) 6 full wraps, 4 full wraps
E) 1 full wrap, 2 full wraps - correct answer-B) 4 full wraps, 2 full
wraps
The horizontal distance from the center of rotation of the crane to
the center of the hoist line(s) with load applied is called
A) Boom Length
B) Radius
C) Lift Zone
D) Quadrant
E) Circumference - correct answer-B) Radius
What is two-blocking, and why is two-blocking dangerous?
A) Two-blocking occurs when the hook contacts another block or
hook on the crane. It is dangerous because the hook could
damage the crane, causing loss of load control.
B) Two-blocking occurs when the block or hook contacts the
ground.
, Page | 4
It is dangerous because the wire rope may come off of the drum
and drop the block.
C) Two-blocking occurs when the hook block comes in contact
with the upper sheave block during hoisting of the hook. It is
dangerous because it could result in damage to the crane, parting
of the hoist lines, and dropping the load. - correct answer-C) Two-
blocking occurs when the hook block comes in contact with the
upper sheave block during hoisting of the hook. It is dangerous
because it could result in damage to the crane, parting of the hoist
lines, and dropping the load.
When should a tagline be used during lifting operations?
A) when lifting a load over or near electrical transmission lines
B) to prevent the load from swinging or rotating
C) when the supervisor approves their use
D) only when lifting the load to extreme heights - correct answer-
B) to prevent the load from swinging or rotating
What is the weight of a 24 square foot, 2 inch thick aluminum
plate with a unit weight of 15 lbs. per square foot of material per
inch of thickness?
A) 348 pounds
B) 720 pounds
C) 6,720 pounds
