NCCCO TOWER CRANE OPERATOR EXAMINATION NEWEST EVALUATED EXAM
PRACTICE 100 QUESTIONS 2025-2026|ORIGINAL QUESTIONS & ANSWERS
|DETAILED RATIONALES |HINTED COMPLETE EXAM PREP GRADED A+*INSTANT
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1. Before operating a tower crane, which condition must be verified first when
determining whether the crane can safely support the planned operation?
A. The operator’s preferred operating speed
B. The crane’s paint condition
C. The supporting structure and foundation are suitable for the crane loads
D. The number of workers on the site
Answer: C. The supporting structure and foundation are suitable for the crane
loads
The supporting surface and foundation must be capable of safely supporting the
crane and imposed loads. A visually acceptable surface is not sufficient if its
structural capacity has not been established.
2. A tower crane is being climbed. The operator notices that the wind is
approaching the manufacturer’s maximum allowable climbing speed. What
is the safest action?
A. Continue climbing because the crane is already partially elevated
B. Reduce the hoisting speed and continue
C. Stop the climbing operation until conditions comply with the manufacturer’s
requirements
D. Add counterweights to compensate for the wind
Answer: C. Stop the climbing operation until conditions comply with the
manufacturer’s requirements
Climbing creates special stability and structural conditions. Manufacturer-
specified wind limits must be followed during climbing, erection, and dismantling.
3. During a climbing operation, which component arrangement is most critical
to verify before proceeding?
,A. Cab lighting and windshield condition
B. Climbing collars, support beams, wedges, and climbing apparatus
C. Hook paint and warning labels
D. Operator seat adjustment
Answer: B. Climbing collars, support beams, wedges, and climbing apparatus
These components support and guide the crane during climbing. Incorrect
installation can create a severe structural and stability hazard.
4. A tower crane is operating within its approved configuration, but the
operator discovers that the counterweights do not match the
manufacturer’s specified arrangement. What should the operator do?
A. Operate only at reduced speed
B. Remove half of the counterweights
C. Continue if the load is below rated capacity
D. Stop operation until the correct configuration is established
Answer: D. Stop operation until the correct configuration is established
Counterweight configuration is part of the crane’s engineered operating condition.
The crane must not be operated in an unauthorized configuration.
5. What is the primary purpose of a tower crane load chart?
A. To determine the operator’s maximum working hours
B. To identify the crane’s allowable capacity for specified operating conditions
C. To determine the required number of signalpersons
D. To determine the crane’s electrical consumption
Answer: B. To identify the crane’s allowable capacity for specified operating
conditions
The load chart establishes allowable capacities based on factors such as radius
and crane configuration.
6. A load weighs 9,000 lb and the rigging weighs 1,000 lb. What minimum
total load must the operator account for when determining crane capacity?
,A. 8,000 lb
B. 9,000 lb
C. 10,000 lb
D. 11,000 lb
Answer: C. 10,000 lb
The total suspended load includes the lifted load and applicable rigging weight.
Therefore, 9,000 + 1,000 = 10,000 lb.
7. A crane has a rated capacity of 12,000 lb at a particular radius. The load
weighs 10,500 lb and the rigging weighs 1,000 lb. What is the remaining
capacity?
A. 500 lb
B. 1,000 lb
C. 1,500 lb
D. 2,500 lb
Answer: C. 1,500 lb
The total load is 11,500 lb. Subtracting this from the 12,000-lb rated capacity
leaves 1,500 lb.
8. Which condition would most directly require the operator to stop a planned
lift?
A. The load is painted a different color than expected
B. The load weight cannot be reliably determined
C. The signalperson is wearing a different color vest
D. The operator has completed the daily inspection
Answer: B. The load weight cannot be reliably determined
The operator must know the load weight sufficiently to determine whether the lift
is within the crane’s rated capacity.
9. During an operation, the operator receives conflicting signals from two
signalpersons. What should the operator do?
, A. Follow the signalperson closest to the load
B. Follow whichever signal is given first
C. Stop the operation until communication is clarified
D. Follow the signalperson wearing the brightest vest
Answer: C. Stop the operation until communication is clarified
Conflicting signals create an unsafe condition. The operator should not proceed
until a clear communication system is established.
10.Who has authority to give a stop signal during crane operations?
A. Only the designated signalperson
B. Only the site supervisor
C. Only the crane owner
D. Anyone who recognizes an unsafe condition
Answer: D. Anyone who recognizes an unsafe condition
A stop signal must be acted upon when it is given because continuing an
operation in the presence of an apparent hazard could result in injury or
equipment damage.
11.When a tower crane is left unattended, which action is most appropriate?
A. Leave the load suspended for convenience
B. Secure the crane according to the manufacturer’s procedures
C. Leave the controls energized
D. Keep the hook under tension
Answer: B. Secure the crane according to the manufacturer’s procedures
Proper shutdown and securing procedures protect the crane from unintended
movement and environmental forces.
12.Which condition is especially important when determining whether crane
operations should continue during high winds?
A. The operator’s personal comfort
B. The manufacturer’s specified wind limitations
PRACTICE 100 QUESTIONS 2025-2026|ORIGINAL QUESTIONS & ANSWERS
|DETAILED RATIONALES |HINTED COMPLETE EXAM PREP GRADED A+*INSTANT
DOWNLOAD PDF*
1. Before operating a tower crane, which condition must be verified first when
determining whether the crane can safely support the planned operation?
A. The operator’s preferred operating speed
B. The crane’s paint condition
C. The supporting structure and foundation are suitable for the crane loads
D. The number of workers on the site
Answer: C. The supporting structure and foundation are suitable for the crane
loads
The supporting surface and foundation must be capable of safely supporting the
crane and imposed loads. A visually acceptable surface is not sufficient if its
structural capacity has not been established.
2. A tower crane is being climbed. The operator notices that the wind is
approaching the manufacturer’s maximum allowable climbing speed. What
is the safest action?
A. Continue climbing because the crane is already partially elevated
B. Reduce the hoisting speed and continue
C. Stop the climbing operation until conditions comply with the manufacturer’s
requirements
D. Add counterweights to compensate for the wind
Answer: C. Stop the climbing operation until conditions comply with the
manufacturer’s requirements
Climbing creates special stability and structural conditions. Manufacturer-
specified wind limits must be followed during climbing, erection, and dismantling.
3. During a climbing operation, which component arrangement is most critical
to verify before proceeding?
,A. Cab lighting and windshield condition
B. Climbing collars, support beams, wedges, and climbing apparatus
C. Hook paint and warning labels
D. Operator seat adjustment
Answer: B. Climbing collars, support beams, wedges, and climbing apparatus
These components support and guide the crane during climbing. Incorrect
installation can create a severe structural and stability hazard.
4. A tower crane is operating within its approved configuration, but the
operator discovers that the counterweights do not match the
manufacturer’s specified arrangement. What should the operator do?
A. Operate only at reduced speed
B. Remove half of the counterweights
C. Continue if the load is below rated capacity
D. Stop operation until the correct configuration is established
Answer: D. Stop operation until the correct configuration is established
Counterweight configuration is part of the crane’s engineered operating condition.
The crane must not be operated in an unauthorized configuration.
5. What is the primary purpose of a tower crane load chart?
A. To determine the operator’s maximum working hours
B. To identify the crane’s allowable capacity for specified operating conditions
C. To determine the required number of signalpersons
D. To determine the crane’s electrical consumption
Answer: B. To identify the crane’s allowable capacity for specified operating
conditions
The load chart establishes allowable capacities based on factors such as radius
and crane configuration.
6. A load weighs 9,000 lb and the rigging weighs 1,000 lb. What minimum
total load must the operator account for when determining crane capacity?
,A. 8,000 lb
B. 9,000 lb
C. 10,000 lb
D. 11,000 lb
Answer: C. 10,000 lb
The total suspended load includes the lifted load and applicable rigging weight.
Therefore, 9,000 + 1,000 = 10,000 lb.
7. A crane has a rated capacity of 12,000 lb at a particular radius. The load
weighs 10,500 lb and the rigging weighs 1,000 lb. What is the remaining
capacity?
A. 500 lb
B. 1,000 lb
C. 1,500 lb
D. 2,500 lb
Answer: C. 1,500 lb
The total load is 11,500 lb. Subtracting this from the 12,000-lb rated capacity
leaves 1,500 lb.
8. Which condition would most directly require the operator to stop a planned
lift?
A. The load is painted a different color than expected
B. The load weight cannot be reliably determined
C. The signalperson is wearing a different color vest
D. The operator has completed the daily inspection
Answer: B. The load weight cannot be reliably determined
The operator must know the load weight sufficiently to determine whether the lift
is within the crane’s rated capacity.
9. During an operation, the operator receives conflicting signals from two
signalpersons. What should the operator do?
, A. Follow the signalperson closest to the load
B. Follow whichever signal is given first
C. Stop the operation until communication is clarified
D. Follow the signalperson wearing the brightest vest
Answer: C. Stop the operation until communication is clarified
Conflicting signals create an unsafe condition. The operator should not proceed
until a clear communication system is established.
10.Who has authority to give a stop signal during crane operations?
A. Only the designated signalperson
B. Only the site supervisor
C. Only the crane owner
D. Anyone who recognizes an unsafe condition
Answer: D. Anyone who recognizes an unsafe condition
A stop signal must be acted upon when it is given because continuing an
operation in the presence of an apparent hazard could result in injury or
equipment damage.
11.When a tower crane is left unattended, which action is most appropriate?
A. Leave the load suspended for convenience
B. Secure the crane according to the manufacturer’s procedures
C. Leave the controls energized
D. Keep the hook under tension
Answer: B. Secure the crane according to the manufacturer’s procedures
Proper shutdown and securing procedures protect the crane from unintended
movement and environmental forces.
12.Which condition is especially important when determining whether crane
operations should continue during high winds?
A. The operator’s personal comfort
B. The manufacturer’s specified wind limitations
