NCCCO Tower Crane Study EXAM fully solved & updated
2026-2027(latest version verified for accuracy) (Questions
+ Answers) Solved 100% Correct!!
1. According to OSHA who can assemble/ disassemble a crane boom and
rigging?
foreman
qualified person
operator
rigger
2. Cranes should not be operated within feet of a 50 kV power line.
5
10
15
20
3. What is the primary function of a tower crane saddle jib?
To support the load and provide stability during lifting operations.
To house the crane's electrical components.
To connect the crane to the ground.
To control the crane's movement and speed.
4. What is a proper means to indicate the position of the trolley on the jib?
paint or attach radius markers on the jib
paint marks on the trolley line
, attach radius markers on the trolley cable
5. Describe the role of ASME standards in ensuring the safety of tower crane
operations.
ASME standards are irrelevant to tower crane operations.
ASME standards provide guidelines for the design, operation, and
maintenance of tower cranes to ensure safety and efficiency.
ASME standards focus solely on the assembly procedures of tower
cranes.
ASME standards are only applicable to the inspection of tower cranes.
6. If a tower crane is configured with a longer jib but the same load radius, what
would you expect to happen to its lifting capacity?
The lifting capacity would remain unchanged.
The lifting capacity would increase.
The lifting capacity would decrease.
The lifting capacity would double.
7. What is the initial procedure required before the assembly of a tower crane?
Hiring a certified operator
Obtaining necessary permits
Conducting a site assessment
Gathering the crane components
8. Describe the role of the slewing mechanism in the operation of a tower
crane.
The slewing mechanism is used for assembling the crane.
, The slewing mechanism allows the crane to rotate horizontally while
maintaining a fixed base.
The slewing mechanism lifts the crane vertically.
The slewing mechanism stabilizes the crane during high winds.
9. What are the two roles required to be present during the erection of a tower
crane according to OSHA regulations?
The project manager and a construction worker.
The crane operator and a qualified rigger.
The site supervisor and a safety officer.
The engineer and a laborer.
10. If a tower crane's slewing mechanism fails during operation, what would be
the most immediate consequence for the crane's functionality?
The crane would be unable to rotate to position loads.
The crane would operate at a slower speed.
The crane would lift loads higher than its capacity.
The crane would collapse under its own weight.
11. Which of the following is NOT a required safety device on tower cranes?
None of the above
Boom stops on luffing boom type tower cranes
Travel rail clamps on all travel bogies
Hydraulic system pressure limiting device
, 12. Describe the significance of positioning the counterweight away from the
tower base bolts during tightening.
Positioning the counterweight away from the tower base bolts
ensures safety and stability during the tightening process.
It allows for easier access to the bolts for maintenance.
It reduces the risk of equipment damage.
It helps in balancing the crane during operation.
13. Why is it important to include slings and rigging hardware in pre-lift load
calculations, despite their lightweight nature?
Including slings and rigging hardware ensures accurate load
calculations for safety.
Safety regulations do not require their inclusion.
Lightweight components can be ignored in calculations.
Only the heaviest components need to be considered.
14. Describe the role of the saddle jib in the overall operation of a tower crane.
The saddle jib provides a stable platform for lifting loads and helps
distribute weight evenly during operations.
The saddle jib is responsible for the crane's electrical functions.
The saddle jib controls the crane's hydraulic systems.
The saddle jib is used to assemble the crane's base.
15. If a tower crane fails a load test at 110% overload, what would be the most
appropriate course of action according to safety regulations?
The crane should be immediately dismantled.
2026-2027(latest version verified for accuracy) (Questions
+ Answers) Solved 100% Correct!!
1. According to OSHA who can assemble/ disassemble a crane boom and
rigging?
foreman
qualified person
operator
rigger
2. Cranes should not be operated within feet of a 50 kV power line.
5
10
15
20
3. What is the primary function of a tower crane saddle jib?
To support the load and provide stability during lifting operations.
To house the crane's electrical components.
To connect the crane to the ground.
To control the crane's movement and speed.
4. What is a proper means to indicate the position of the trolley on the jib?
paint or attach radius markers on the jib
paint marks on the trolley line
, attach radius markers on the trolley cable
5. Describe the role of ASME standards in ensuring the safety of tower crane
operations.
ASME standards are irrelevant to tower crane operations.
ASME standards provide guidelines for the design, operation, and
maintenance of tower cranes to ensure safety and efficiency.
ASME standards focus solely on the assembly procedures of tower
cranes.
ASME standards are only applicable to the inspection of tower cranes.
6. If a tower crane is configured with a longer jib but the same load radius, what
would you expect to happen to its lifting capacity?
The lifting capacity would remain unchanged.
The lifting capacity would increase.
The lifting capacity would decrease.
The lifting capacity would double.
7. What is the initial procedure required before the assembly of a tower crane?
Hiring a certified operator
Obtaining necessary permits
Conducting a site assessment
Gathering the crane components
8. Describe the role of the slewing mechanism in the operation of a tower
crane.
The slewing mechanism is used for assembling the crane.
, The slewing mechanism allows the crane to rotate horizontally while
maintaining a fixed base.
The slewing mechanism lifts the crane vertically.
The slewing mechanism stabilizes the crane during high winds.
9. What are the two roles required to be present during the erection of a tower
crane according to OSHA regulations?
The project manager and a construction worker.
The crane operator and a qualified rigger.
The site supervisor and a safety officer.
The engineer and a laborer.
10. If a tower crane's slewing mechanism fails during operation, what would be
the most immediate consequence for the crane's functionality?
The crane would be unable to rotate to position loads.
The crane would operate at a slower speed.
The crane would lift loads higher than its capacity.
The crane would collapse under its own weight.
11. Which of the following is NOT a required safety device on tower cranes?
None of the above
Boom stops on luffing boom type tower cranes
Travel rail clamps on all travel bogies
Hydraulic system pressure limiting device
, 12. Describe the significance of positioning the counterweight away from the
tower base bolts during tightening.
Positioning the counterweight away from the tower base bolts
ensures safety and stability during the tightening process.
It allows for easier access to the bolts for maintenance.
It reduces the risk of equipment damage.
It helps in balancing the crane during operation.
13. Why is it important to include slings and rigging hardware in pre-lift load
calculations, despite their lightweight nature?
Including slings and rigging hardware ensures accurate load
calculations for safety.
Safety regulations do not require their inclusion.
Lightweight components can be ignored in calculations.
Only the heaviest components need to be considered.
14. Describe the role of the saddle jib in the overall operation of a tower crane.
The saddle jib provides a stable platform for lifting loads and helps
distribute weight evenly during operations.
The saddle jib is responsible for the crane's electrical functions.
The saddle jib controls the crane's hydraulic systems.
The saddle jib is used to assemble the crane's base.
15. If a tower crane fails a load test at 110% overload, what would be the most
appropriate course of action according to safety regulations?
The crane should be immediately dismantled.
