General Crane Safety | Questions & Verified Answers | 2026-2027
The minimum crane team for a mobile crane on outriggers C) The Crane Operator, Crane Supervisor, and Crane Rigger
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
When operating floating cranes, you must start swinging or B) False
rotating quickly and stop smoothly to prevent excessive
barge list.
A) True
B) False
Extending a telescoping boom without lowering the hoist A) True
may result in "two-blocking" the crane.
A) True
B) False
All of the following require a license to operate EXCEPT C) Non-cab operated category 3 bridge crane
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
Which of the following lift types would NOT be considered B) Oxygen/Acetylene bottles in racks designed for lifting
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
What is the minimum amount of rope that shall be on a B) 4 full wraps, 2 full wraps
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
The horizontal distance from the center of rotation of the B) Radius
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
What is two-blocking, and why is two-blocking dangerous? C) Two-blocking occurs when the hook block comes in contact with the upper
A) Two-blocking occurs when the hook contacts another sheave block during hoisting of the hook. It is dangerous because it could result in
block or hook on the crane. It is dangerous because the damage to the crane, parting of the hoist lines, and dropping the load.
hook could damage the crane, causing loss of load control.
B) Two-blocking occurs when the block or hook contacts
the ground.
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.
, General Crane Safety | Questions & Verified Answers | 2026-2027
When should a tagline be used during lifting operations? B) to prevent the load from swinging or rotating
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
What is the weight of a 24 square foot, 2 inch thick B) 720 pounds
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
D) 60 pounds
E) 120 pounds
The two expiration dates that are of particular importance D) The certification expiration date of the crane
to crane operators are- E) The crane operator's license expiration date
A) Vehicle registration expiration date
B) Hydraulic oil expiration date
C) CAC card expiration date
D) The certification expiration date of the crane
E) The crane operator's license expiration date
Which of the following is NOT an acceptable method of A) Signal Flags
communication between the signal person and the crane
operator?
A) Signal Flags
B) Direct Voice
C) Hand Signals
D) Sound-powered Phones
E) Approved Radios
What is a jib boom? B) An extension attached to the main boom used when lifting light loads to a higher
A) A boom that is attached to the main boom to allow elevation than that permitted by the main boom
rotation of the load
B) An extension attached to the main boom used when
lifting light loads to a higher elevation than that permitted
by the main boom
C) A boom that is used to lift extremely heavy loads
If you find cracking or flaking paint on a welded joint of a B) Report it immediately to your supervisor.
structural component on the boom, you should
A) Look closer to see if it is a crack.
B) Report it immediately to your supervisor.
C) Do nothing as it is not significant.
D) Make a mental note to investigate it later.
E) Note it on the ODCL, but do not report it.
While performing a pre-use check, the operator must C) Size and grade of wire rope
check the wire rope system for all of the following
EXCEPT-
A) Excessive corrosion
B) Damage of any kind
C) Size and grade of wire rope
D) Proper sheave movement
E) Proper spooling on the drum
All of the following are principle parts of an overhead C) Shackles and eyebolts
traveling crane EXCEPT-
A) Operator's cab or pendant control
B) End trucks
C) Shackles and eyebolts
D) Bridge girders
E) Trolley with hoisting mechanism
, General Crane Safety | Questions & Verified Answers | 2026-2027
If you find a deficiency that will affect the safe operation of A) Operate that specific function again to ensure there is a problem
the crane during the pre-operational check, all of the
following actions must be taken EXCEPT-
A) Operate that specific function again to ensure there is a
problem
B) Notify your supervisor
C) Note the finding on the ODCL
D) Secure the crane
E) Follow supervisor's instructions
Components that provide protection for operation and E) General Safety Devices
maintenance personnel working on or in the path of cranes
are?
A) Operational Safety Devices
B) Alterations/Modifications
C) Load Controlling Parts
D) Load Bearing Parts
E) General Safety Devices
When setting up mobile cranes, the minimum clearance incorrect
between the rotating upper works and fixed objects should D) 4 feet
be?
A) 1 foot
B) 2 feet
C) 3 feet
D) 4 feet
E) 5 feet
The rated load of the hook block installed on a crane may A) True
limit the crane's lifting capacity.
A) True
B) False
When crane accidents happen or damage is found, you A) Continue operating until the supervisor performs an evaluation
must do all of the following
EXCEPT
A) Continue operating until the supervisor performs an
evaluation
B) Put the load in a safe condition
C) Standby for instructions
D) Stop operations
E) Contact your supervisor
When should the rotate locking device be engaged on a incorrect
mobile crane? B) while the crane is traveling with a load in "pick and carry" mode
A) when hoisting a load C) any other time required by the crane OEM
B) while the crane is traveling with a load in "pick and D) when landing a load
carry" mode F) whenever the operator leaves the cab
C) any other time required by the crane OEM
D) when landing a load
E) whenever using the LMI system
F) whenever the operator leaves the cab
In cold weather operation, what precautions should be C) Raise the blocks and boom before lowering them
taken during the pre-operational check or ODCL to avoid
damage when sheaves may be frozen?
A) Check the hoist and boom lower limit switches first
B) Hoist down first and check the lower limit switch
C) Raise the blocks and boom before lowering them
D) Lower the boom prior to raising it
E) Lower the blocks prior to raising them
If the crane operator and the Rigger-in-Charge disagree on C) Not operate the crane until contacting the supervisor to resolve the issue
whether or not a load is safe to lift, the operator should-
A) Follow the instructions of the Rigger-in-Charge
B) Note the incident on the back of the ODCL card
C) Not operate the crane until contacting the supervisor to
resolve the issue
D) Proceed slowly with extreme caution
E) Tell his or her supervisor at the end of the shift
The minimum crane team for a mobile crane on outriggers C) The Crane Operator, Crane Supervisor, and Crane Rigger
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
When operating floating cranes, you must start swinging or B) False
rotating quickly and stop smoothly to prevent excessive
barge list.
A) True
B) False
Extending a telescoping boom without lowering the hoist A) True
may result in "two-blocking" the crane.
A) True
B) False
All of the following require a license to operate EXCEPT C) Non-cab operated category 3 bridge crane
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
Which of the following lift types would NOT be considered B) Oxygen/Acetylene bottles in racks designed for lifting
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
What is the minimum amount of rope that shall be on a B) 4 full wraps, 2 full wraps
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
The horizontal distance from the center of rotation of the B) Radius
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
What is two-blocking, and why is two-blocking dangerous? C) Two-blocking occurs when the hook block comes in contact with the upper
A) Two-blocking occurs when the hook contacts another sheave block during hoisting of the hook. It is dangerous because it could result in
block or hook on the crane. It is dangerous because the damage to the crane, parting of the hoist lines, and dropping the load.
hook could damage the crane, causing loss of load control.
B) Two-blocking occurs when the block or hook contacts
the ground.
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.
, General Crane Safety | Questions & Verified Answers | 2026-2027
When should a tagline be used during lifting operations? B) to prevent the load from swinging or rotating
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
What is the weight of a 24 square foot, 2 inch thick B) 720 pounds
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
D) 60 pounds
E) 120 pounds
The two expiration dates that are of particular importance D) The certification expiration date of the crane
to crane operators are- E) The crane operator's license expiration date
A) Vehicle registration expiration date
B) Hydraulic oil expiration date
C) CAC card expiration date
D) The certification expiration date of the crane
E) The crane operator's license expiration date
Which of the following is NOT an acceptable method of A) Signal Flags
communication between the signal person and the crane
operator?
A) Signal Flags
B) Direct Voice
C) Hand Signals
D) Sound-powered Phones
E) Approved Radios
What is a jib boom? B) An extension attached to the main boom used when lifting light loads to a higher
A) A boom that is attached to the main boom to allow elevation than that permitted by the main boom
rotation of the load
B) An extension attached to the main boom used when
lifting light loads to a higher elevation than that permitted
by the main boom
C) A boom that is used to lift extremely heavy loads
If you find cracking or flaking paint on a welded joint of a B) Report it immediately to your supervisor.
structural component on the boom, you should
A) Look closer to see if it is a crack.
B) Report it immediately to your supervisor.
C) Do nothing as it is not significant.
D) Make a mental note to investigate it later.
E) Note it on the ODCL, but do not report it.
While performing a pre-use check, the operator must C) Size and grade of wire rope
check the wire rope system for all of the following
EXCEPT-
A) Excessive corrosion
B) Damage of any kind
C) Size and grade of wire rope
D) Proper sheave movement
E) Proper spooling on the drum
All of the following are principle parts of an overhead C) Shackles and eyebolts
traveling crane EXCEPT-
A) Operator's cab or pendant control
B) End trucks
C) Shackles and eyebolts
D) Bridge girders
E) Trolley with hoisting mechanism
, General Crane Safety | Questions & Verified Answers | 2026-2027
If you find a deficiency that will affect the safe operation of A) Operate that specific function again to ensure there is a problem
the crane during the pre-operational check, all of the
following actions must be taken EXCEPT-
A) Operate that specific function again to ensure there is a
problem
B) Notify your supervisor
C) Note the finding on the ODCL
D) Secure the crane
E) Follow supervisor's instructions
Components that provide protection for operation and E) General Safety Devices
maintenance personnel working on or in the path of cranes
are?
A) Operational Safety Devices
B) Alterations/Modifications
C) Load Controlling Parts
D) Load Bearing Parts
E) General Safety Devices
When setting up mobile cranes, the minimum clearance incorrect
between the rotating upper works and fixed objects should D) 4 feet
be?
A) 1 foot
B) 2 feet
C) 3 feet
D) 4 feet
E) 5 feet
The rated load of the hook block installed on a crane may A) True
limit the crane's lifting capacity.
A) True
B) False
When crane accidents happen or damage is found, you A) Continue operating until the supervisor performs an evaluation
must do all of the following
EXCEPT
A) Continue operating until the supervisor performs an
evaluation
B) Put the load in a safe condition
C) Standby for instructions
D) Stop operations
E) Contact your supervisor
When should the rotate locking device be engaged on a incorrect
mobile crane? B) while the crane is traveling with a load in "pick and carry" mode
A) when hoisting a load C) any other time required by the crane OEM
B) while the crane is traveling with a load in "pick and D) when landing a load
carry" mode F) whenever the operator leaves the cab
C) any other time required by the crane OEM
D) when landing a load
E) whenever using the LMI system
F) whenever the operator leaves the cab
In cold weather operation, what precautions should be C) Raise the blocks and boom before lowering them
taken during the pre-operational check or ODCL to avoid
damage when sheaves may be frozen?
A) Check the hoist and boom lower limit switches first
B) Hoist down first and check the lower limit switch
C) Raise the blocks and boom before lowering them
D) Lower the boom prior to raising it
E) Lower the blocks prior to raising them
If the crane operator and the Rigger-in-Charge disagree on C) Not operate the crane until contacting the supervisor to resolve the issue
whether or not a load is safe to lift, the operator should-
A) Follow the instructions of the Rigger-in-Charge
B) Note the incident on the back of the ODCL card
C) Not operate the crane until contacting the supervisor to
resolve the issue
D) Proceed slowly with extreme caution
E) Tell his or her supervisor at the end of the shift
