NCCCO Tower Crane Exam Prep 2026/2027 | Questions &
Correct Answers | Graded A+
1. If a construction site has multiple tower cranes, what safety measure should
be prioritized to prevent accidents during their operation?
Using cranes without limit switches
Reducing inspection frequency
Increasing the number of operators
Proper planning and communication
2. According to safety regulations, what is a requirement for the person giving
signals during crane operations?
The person must use a radio to communicate.
The person must be at least 10 feet away from the crane.
The person can give signals without seeing the load.
The person must be in a position to see the load clearly at all times.
3. What is the purpose of jib pendant turnbuckles?
to allow for adding jib sections
to provide additional jib support
to adjust jib inclination and eliminate twist
to adjust the jib pendant overload switch
4. Describe the significance of allowing the jib of a tower crane to weathervane
in relation to safety regulations.
It is a requirement for all crane operations regardless of conditions.
, It allows the crane to lift heavier loads safely.
Allowing the jib to weathervane helps prevent structural damage
and ensures stability during high wind conditions.
It is only necessary during crane inspections.
5. If a construction site fails to adequately plan and communicate before
erecting a tower crane, what potential issues might arise during the
operation?
Increased risk of accidents and operational inefficiencies
Improved efficiency and safety
Faster completion of the project
No impact on the operation
6. What is the condition under which the jib of an unattended tower crane
should be allowed to weathervane?
When the crane is in operation with a load.
When the wind speed exceeds the manufacturer's specified limit.
When the crane is being erected.
When the crane is being inspected by qualified personnel.
7. What is the condition that must be met when the jibs of two adjacent tower
cranes overlap?
All of the above
Only jibs set at different heights
Only operators have voice contact
Only one person organizing hoisting operations
,8. Describe the role of limit switches and fail-safe brakes in ensuring the safety
of tower crane operations.
Limit switches are used for communication between operators, while
fail-safe brakes are for aesthetic purposes.
Limit switches and fail-safe brakes are only necessary during crane
assembly.
Limit switches are used to measure load weight, while fail-safe brakes
are for emergency stops.
Limit switches and fail-safe brakes prevent overloading and
uncontrolled movements, enhancing operational safety.
9. When working near power lines, and the voltage is not known, cranes can be
operated under a power line if, the uppermost part of the boom with the
boom fully extended ...
and at true vertical is less than 40 feet.
and keep the boom from making contact with the line.
and at true vertical is not more than 55 degrees.
and at true vertical, would be more than 20 feet from the power line.
10. In a scenario where two tower cranes are operating with overlapping jibs,
what would be the best approach to ensure safety during hoisting
operations?
Use only one crane for hoisting operations.
Allow operators to communicate via hand signals only.
Have each operator make independent decisions without
coordination.
, Implement all safety measures including different jib heights, voice
contact, and a single organizer.
11. If a crane's running rope has 7 broken wires in one lay, what action should be
taken according to OSHA standards?
A visual inspection is sufficient.
The crane can operate at reduced capacity.
The running rope should be replaced.
The rope can continue to be used.
12. When considering a two crane pick, what is one rule that applies?
There must be one person in charge of the lift.
Both operators must have at least 5 years of experience.
The cranes must be at the same radii.
They must be cranes of the same capacity.
13. In a scenario where a crane is being erected without the supervision of
qualified personnel, what potential risks could arise according to ASME
standards?
Lower costs associated with crane operations
Faster completion of the project
Improved communication among workers
Increased risk of accidents and non-compliance with safety
regulations
14. Describe the significance of having a qualified rigger and a qualified signal
person present during tower crane erection.
Correct Answers | Graded A+
1. If a construction site has multiple tower cranes, what safety measure should
be prioritized to prevent accidents during their operation?
Using cranes without limit switches
Reducing inspection frequency
Increasing the number of operators
Proper planning and communication
2. According to safety regulations, what is a requirement for the person giving
signals during crane operations?
The person must use a radio to communicate.
The person must be at least 10 feet away from the crane.
The person can give signals without seeing the load.
The person must be in a position to see the load clearly at all times.
3. What is the purpose of jib pendant turnbuckles?
to allow for adding jib sections
to provide additional jib support
to adjust jib inclination and eliminate twist
to adjust the jib pendant overload switch
4. Describe the significance of allowing the jib of a tower crane to weathervane
in relation to safety regulations.
It is a requirement for all crane operations regardless of conditions.
, It allows the crane to lift heavier loads safely.
Allowing the jib to weathervane helps prevent structural damage
and ensures stability during high wind conditions.
It is only necessary during crane inspections.
5. If a construction site fails to adequately plan and communicate before
erecting a tower crane, what potential issues might arise during the
operation?
Increased risk of accidents and operational inefficiencies
Improved efficiency and safety
Faster completion of the project
No impact on the operation
6. What is the condition under which the jib of an unattended tower crane
should be allowed to weathervane?
When the crane is in operation with a load.
When the wind speed exceeds the manufacturer's specified limit.
When the crane is being erected.
When the crane is being inspected by qualified personnel.
7. What is the condition that must be met when the jibs of two adjacent tower
cranes overlap?
All of the above
Only jibs set at different heights
Only operators have voice contact
Only one person organizing hoisting operations
,8. Describe the role of limit switches and fail-safe brakes in ensuring the safety
of tower crane operations.
Limit switches are used for communication between operators, while
fail-safe brakes are for aesthetic purposes.
Limit switches and fail-safe brakes are only necessary during crane
assembly.
Limit switches are used to measure load weight, while fail-safe brakes
are for emergency stops.
Limit switches and fail-safe brakes prevent overloading and
uncontrolled movements, enhancing operational safety.
9. When working near power lines, and the voltage is not known, cranes can be
operated under a power line if, the uppermost part of the boom with the
boom fully extended ...
and at true vertical is less than 40 feet.
and keep the boom from making contact with the line.
and at true vertical is not more than 55 degrees.
and at true vertical, would be more than 20 feet from the power line.
10. In a scenario where two tower cranes are operating with overlapping jibs,
what would be the best approach to ensure safety during hoisting
operations?
Use only one crane for hoisting operations.
Allow operators to communicate via hand signals only.
Have each operator make independent decisions without
coordination.
, Implement all safety measures including different jib heights, voice
contact, and a single organizer.
11. If a crane's running rope has 7 broken wires in one lay, what action should be
taken according to OSHA standards?
A visual inspection is sufficient.
The crane can operate at reduced capacity.
The running rope should be replaced.
The rope can continue to be used.
12. When considering a two crane pick, what is one rule that applies?
There must be one person in charge of the lift.
Both operators must have at least 5 years of experience.
The cranes must be at the same radii.
They must be cranes of the same capacity.
13. In a scenario where a crane is being erected without the supervision of
qualified personnel, what potential risks could arise according to ASME
standards?
Lower costs associated with crane operations
Faster completion of the project
Improved communication among workers
Increased risk of accidents and non-compliance with safety
regulations
14. Describe the significance of having a qualified rigger and a qualified signal
person present during tower crane erection.
