Tower Crane Practice Questions & Answers | Most
Tested Questions & 100% Correct Answers | 2026 Update
1. Discuss the reasons why rotation resistant wire rope is subject to more
frequent inspections compared to other types of ropes.
Rotation resistant wire rope is less durable than standard wire rope,
requiring more checks.
Rotation resistant wire rope is subject to more frequent inspections
because it is designed to handle high torque and can develop
internal damage that may not be visible externally.
Rotation resistant wire rope is made from materials that degrade faster
than other ropes.
Rotation resistant wire rope is used in lower load applications,
necessitating more frequent inspections.
2. The superstructure of a tower crane is _.
the portion above the anchor bolts
the portion that rotates
the portion above the top jib chord
the portion above the crane cab
3. What is the fundamental principle that ensures crane stability during
operation?
The center of gravity must be within the base of support.
The boom angle must be at 90 degrees.
The load must always be lifted from the ground.
The crane must be operated at maximum capacity.
,4. Which of the following correctly states the requirements for hooks used to
hoist employees on a crane-supported personnel platform?
Hooks shall have latches that close
Hooks shall be attached to a permanent structure
Hooks shall have a latch that closes and locks
Hooks should be in good working order
5. What should be used to prevent sling damage when lifting sharp angled
objects
Softener
A fork lift
Hardener
A double wrap basket
6. When the weight of a load cannot be determined in other ways, it can be
lifted slightly while monitoring the weight using instruments in the crane. The
lift can proceed if the load is less than _.
85 percent of the crane's capacity at the longest required operating
radius
40 percent of the crane's capacity at the longest required operating
radius
75 percent of the crane's capacity at the longest required operating
radius
100 percent of the crane's capacity at the longest required operating
radius
,7. If a crane is lifting a load that is side loaded, what safety measures should be
taken to ensure stability during the operation?
Increase the load weight to balance the side load.
Ignore the side load as it does not affect stability.
Adjust the crane's setup and use appropriate counterweights.
Use a longer boom to counteract the side load.
8. What information is typically provided by a manufacturer's load chart for
cranes?
The maintenance schedule for the crane.
The types of materials that can be lifted.
The maximum load capacity at various boom angles and radii.
The weight of the crane itself.
9. Max wear allowed on sheave
Nominal rope diameter +/- 2.5%
Nominal rope diameter +/- 5%
Nominal rope diameter +/- 1%
Nominal rope diameter +/- 2%
10. What is the primary purpose of load chart ratings in crane operation?
To calculate the crane's fuel efficiency.
To assess the crane's speed during operation.
To evaluate the operator's performance.
To determine the maximum load a crane can safely lift.
, 11. If a crane operator is working near power lines rated at 40kV and the crane is
set to travel with no load, what safety measures should be taken to comply
with OSHA regulations?
Ensure the crane maintains a minimum clearance of 10 feet from the
power lines.
Increase the load capacity of the crane to avoid accidents.
Only check clearance when the crane is loaded.
Use a different crane model that does not require clearance.
12. Cranes must be set up:
Maintained in a level position
According to manufacturer specs
On a firm surface with outrigger pads
All of the above
13. Describe the significance of the flange extension over the wire rope in crane
operations as outlined by ANSI B30.5.
The flange extension is primarily for aesthetic purposes and does not
affect safety.
The flange extension helps in increasing the load capacity of the
crane.
The flange extension is only relevant for certain types of cranes.
The flange extension ensures that the wire rope is properly
secured and reduces the risk of it slipping off the drum during
operation.
Tested Questions & 100% Correct Answers | 2026 Update
1. Discuss the reasons why rotation resistant wire rope is subject to more
frequent inspections compared to other types of ropes.
Rotation resistant wire rope is less durable than standard wire rope,
requiring more checks.
Rotation resistant wire rope is subject to more frequent inspections
because it is designed to handle high torque and can develop
internal damage that may not be visible externally.
Rotation resistant wire rope is made from materials that degrade faster
than other ropes.
Rotation resistant wire rope is used in lower load applications,
necessitating more frequent inspections.
2. The superstructure of a tower crane is _.
the portion above the anchor bolts
the portion that rotates
the portion above the top jib chord
the portion above the crane cab
3. What is the fundamental principle that ensures crane stability during
operation?
The center of gravity must be within the base of support.
The boom angle must be at 90 degrees.
The load must always be lifted from the ground.
The crane must be operated at maximum capacity.
,4. Which of the following correctly states the requirements for hooks used to
hoist employees on a crane-supported personnel platform?
Hooks shall have latches that close
Hooks shall be attached to a permanent structure
Hooks shall have a latch that closes and locks
Hooks should be in good working order
5. What should be used to prevent sling damage when lifting sharp angled
objects
Softener
A fork lift
Hardener
A double wrap basket
6. When the weight of a load cannot be determined in other ways, it can be
lifted slightly while monitoring the weight using instruments in the crane. The
lift can proceed if the load is less than _.
85 percent of the crane's capacity at the longest required operating
radius
40 percent of the crane's capacity at the longest required operating
radius
75 percent of the crane's capacity at the longest required operating
radius
100 percent of the crane's capacity at the longest required operating
radius
,7. If a crane is lifting a load that is side loaded, what safety measures should be
taken to ensure stability during the operation?
Increase the load weight to balance the side load.
Ignore the side load as it does not affect stability.
Adjust the crane's setup and use appropriate counterweights.
Use a longer boom to counteract the side load.
8. What information is typically provided by a manufacturer's load chart for
cranes?
The maintenance schedule for the crane.
The types of materials that can be lifted.
The maximum load capacity at various boom angles and radii.
The weight of the crane itself.
9. Max wear allowed on sheave
Nominal rope diameter +/- 2.5%
Nominal rope diameter +/- 5%
Nominal rope diameter +/- 1%
Nominal rope diameter +/- 2%
10. What is the primary purpose of load chart ratings in crane operation?
To calculate the crane's fuel efficiency.
To assess the crane's speed during operation.
To evaluate the operator's performance.
To determine the maximum load a crane can safely lift.
, 11. If a crane operator is working near power lines rated at 40kV and the crane is
set to travel with no load, what safety measures should be taken to comply
with OSHA regulations?
Ensure the crane maintains a minimum clearance of 10 feet from the
power lines.
Increase the load capacity of the crane to avoid accidents.
Only check clearance when the crane is loaded.
Use a different crane model that does not require clearance.
12. Cranes must be set up:
Maintained in a level position
According to manufacturer specs
On a firm surface with outrigger pads
All of the above
13. Describe the significance of the flange extension over the wire rope in crane
operations as outlined by ANSI B30.5.
The flange extension is primarily for aesthetic purposes and does not
affect safety.
The flange extension helps in increasing the load capacity of the
crane.
The flange extension is only relevant for certain types of cranes.
The flange extension ensures that the wire rope is properly
secured and reduces the risk of it slipping off the drum during
operation.
