Mobile Crane Practice Test 1 (151 Questions) 2026 | Real
Exam Questions & Verified Answers | Complete Crane
Operator Prep
1. What is the function of a rooster sheave in mobile crane operation?
To provide additional height to the boom.
To increase the lifting capacity of the crane.
To change the direction of the load line.
To stabilize the crane during operation.
2. What is one of the key responsibilities of a crane operator before leaving the
crane?
Notify the supervisor.
Inspect the load for stability.
Ensure the crane is properly secured.
Check the fuel levels.
3. If a crane operator needs to lift a load that is 30 feet away from the crane's
base, which equipment feature should they consider using?
Boom extension
Counterweights
Load indicators
Stabilizers
4. Describe the importance of the safety factor in crane operations, particularly
when using non-rotating wire rope for manbasket lifts.
, The safety factor only applies to rotating wire ropes.
The safety factor ensures that the wire rope can support the load
with a significant margin for safety, reducing the risk of failure.
The safety factor is used to calculate the speed of the crane.
The safety factor is irrelevant in crane operations.
5. If the SWL of a cranes wire rope is 10,000 lbs using one part, what is the SWL
when using 4 parts?
10,000 lbs.
20,000 lbs.
30,000 lbs.
40,000 lbs.
6. Who is responsible for providing hand signals to the crane operator during
operation?
The crane supervisor
The construction manager
The signal person
The equipment manufacturer
7. What is the minimum design factor for a right regular lay main, boom or
auxiliary hoist rope?
6:1
3:1
4:1
5:1
,8. Describe how the order of hitch strength affects load management in mobile
crane operations.
The order of hitch strength is determined by the operator's
preference.
The order of hitch strength affects load management by ensuring
that the strongest hitch is used for heavier loads, preventing
accidents.
The order of hitch strength only applies to specific crane types.
The order of hitch strength is irrelevant to load management.
9. What is the minimum safety factor required when lifting personnel in a
manbasket using 6 x 19 wire rope?
4:1
3:1
6:1
5:1
10. What is the primary function of an Anti-two-block warning device in crane
operation?
To alert the operator when the hook is about to make contact with
the boom.
To calculate load weight.
To prevent the hook from making contact with the boom.
To stabilize the crane during operation.
11. If the load chart you are using has a shaded area, the area above the solid
bold line, or asterisk next to the values, this means the capacities are based
, on?
100% of the tipping load chart
Stability
None of the above
Structural strength or competence
12. If a crane operator is required to set up a crane at a construction site near
power lines, what safety measure should be taken?
Set up the crane without any additional precautions.
Increase the load capacity of the crane.
Ignore the power lines as they are not active.
Establish a safety perimeter and use a spotter.
13. If a crane operator discovers 7 broken wires in one strand of wire rope
during a routine inspection, what action should they take according to safety
protocols?
Continue using the wire rope until the next inspection
Remove the wire rope from service
Notify the supervisor but continue operations
Repair the wire rope immediately
14. If a crawler crane is set up in the rear quadrant and a load is lifted, what
safety measures should be taken to ensure stability?
Reduce the load to half of its maximum capacity.
Move the crane to a different quadrant immediately.
Increase the counterweight and ensure the load is within the
Exam Questions & Verified Answers | Complete Crane
Operator Prep
1. What is the function of a rooster sheave in mobile crane operation?
To provide additional height to the boom.
To increase the lifting capacity of the crane.
To change the direction of the load line.
To stabilize the crane during operation.
2. What is one of the key responsibilities of a crane operator before leaving the
crane?
Notify the supervisor.
Inspect the load for stability.
Ensure the crane is properly secured.
Check the fuel levels.
3. If a crane operator needs to lift a load that is 30 feet away from the crane's
base, which equipment feature should they consider using?
Boom extension
Counterweights
Load indicators
Stabilizers
4. Describe the importance of the safety factor in crane operations, particularly
when using non-rotating wire rope for manbasket lifts.
, The safety factor only applies to rotating wire ropes.
The safety factor ensures that the wire rope can support the load
with a significant margin for safety, reducing the risk of failure.
The safety factor is used to calculate the speed of the crane.
The safety factor is irrelevant in crane operations.
5. If the SWL of a cranes wire rope is 10,000 lbs using one part, what is the SWL
when using 4 parts?
10,000 lbs.
20,000 lbs.
30,000 lbs.
40,000 lbs.
6. Who is responsible for providing hand signals to the crane operator during
operation?
The crane supervisor
The construction manager
The signal person
The equipment manufacturer
7. What is the minimum design factor for a right regular lay main, boom or
auxiliary hoist rope?
6:1
3:1
4:1
5:1
,8. Describe how the order of hitch strength affects load management in mobile
crane operations.
The order of hitch strength is determined by the operator's
preference.
The order of hitch strength affects load management by ensuring
that the strongest hitch is used for heavier loads, preventing
accidents.
The order of hitch strength only applies to specific crane types.
The order of hitch strength is irrelevant to load management.
9. What is the minimum safety factor required when lifting personnel in a
manbasket using 6 x 19 wire rope?
4:1
3:1
6:1
5:1
10. What is the primary function of an Anti-two-block warning device in crane
operation?
To alert the operator when the hook is about to make contact with
the boom.
To calculate load weight.
To prevent the hook from making contact with the boom.
To stabilize the crane during operation.
11. If the load chart you are using has a shaded area, the area above the solid
bold line, or asterisk next to the values, this means the capacities are based
, on?
100% of the tipping load chart
Stability
None of the above
Structural strength or competence
12. If a crane operator is required to set up a crane at a construction site near
power lines, what safety measure should be taken?
Set up the crane without any additional precautions.
Increase the load capacity of the crane.
Ignore the power lines as they are not active.
Establish a safety perimeter and use a spotter.
13. If a crane operator discovers 7 broken wires in one strand of wire rope
during a routine inspection, what action should they take according to safety
protocols?
Continue using the wire rope until the next inspection
Remove the wire rope from service
Notify the supervisor but continue operations
Repair the wire rope immediately
14. If a crawler crane is set up in the rear quadrant and a load is lifted, what
safety measures should be taken to ensure stability?
Reduce the load to half of its maximum capacity.
Move the crane to a different quadrant immediately.
Increase the counterweight and ensure the load is within the
