Georgia Mobile Crane Operator
Qualification Advanced Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. Before beginning a lifting operation, what is the operator's most important
first responsibility?
A. Increase engine speed
B. Verify the crane's configuration, capacity, operating area, and planned lift
C. Extend the boom completely
D. Test the horn
Answer: Verify the crane's configuration, capacity, operating area, and planned
lift
Rationale: The operator must understand the crane's actual configuration and
the conditions affecting capacity and stability before making a lift.
2. A crane's rated capacity is primarily determined by which factors?
A. Engine horsepower only
B. Operator experience only
C. Crane configuration, load radius, structural limitations, and stability
D. The weight of the counterweight alone
,Answer: Crane configuration, load radius, structural limitations, and stability
Rationale: Rated capacity varies with configuration and operating conditions.
The load chart must be interpreted for the exact setup being used.
3. What happens to crane capacity as the load radius generally increases?
A. It increases
B. It remains constant
C. It generally decreases
D. It doubles
Answer: It generally decreases
Rationale: A larger working radius creates a greater overturning moment,
reducing the crane's allowable capacity.
4. What is the purpose of outriggers on a mobile crane?
A. To increase engine power
B. To provide additional stability and distribute loads
C. To increase hoist speed
D. To shorten the boom
Answer: To provide additional stability and distribute loads
Rationale: Properly deployed outriggers increase the crane's stability and help
transfer forces to the supporting surface.
5. When a crane is set up on outriggers, the operator should determine the
allowable capacity from:
A. The maximum capacity printed on the crane
B. The smallest load chart capacity applicable to the actual configuration
C. The crane's engine size
D. The weight of the hook block
Answer: The smallest load chart capacity applicable to the actual configuration
,Rationale: The correct load chart must correspond to boom length, radius,
counterweight, outrigger configuration, jib, and other applicable conditions.
6. What is the effect of a longer boom on crane lifting capacity?
A. It always increases capacity
B. It can reduce capacity depending on the configuration and radius
C. It has no effect
D. It eliminates the need for a load chart
Answer: It can reduce capacity depending on the configuration and radius
Rationale: Longer boom configurations can increase structural and stability
demands and therefore may have lower allowable capacities.
7. What should an operator do if the load weight cannot be determined
reliably?
A. Lift it slowly
B. Assume it is within capacity
C. Do not make the lift until the weight is adequately established
D. Add another signalperson
Answer: Do not make the lift until the weight is adequately established
Rationale: An unknown load weight prevents accurate capacity calculations and
creates an unacceptable risk of overload.
8. What is gross load weight?
A. Load weight excluding the rigging
B. The weight of the crane
C. The total suspended weight considered by the crane, including applicable
rigging and below-the-hook equipment
D. The weight of the counterweight
Answer: The total suspended weight considered by the crane, including
applicable rigging and below-the-hook equipment
, Rationale: The operator must account for the load and applicable suspended
components when determining whether the crane is within capacity.
9. A crane is operating at a 40-foot radius with a load. If the load moves to a
60-foot radius, what happens to the overturning moment?
A. It decreases
B. It remains unchanged
C. It increases
D. It becomes zero
Answer: It increases
Rationale: Overturning moment is directly affected by load weight and
horizontal distance from the tipping axis. Increasing radius increases the
moment.
10.What is the primary purpose of a crane load chart?
A. To identify the fuel type
B. To determine permissible lifting capacity under specified configurations and
conditions
C. To identify the operator
D. To determine tire pressure
Answer: To determine permissible lifting capacity under specified configurations
and conditions
Rationale: Load charts establish allowable capacities based on specific crane
configurations and operating conditions.
11.Why must the operator know the actual boom length?
A. Boom length affects the crane's rated capacity and operating geometry
B. It only affects paint requirements
C. It has no relationship to capacity
D. It determines engine oil capacity
Qualification Advanced Practice Exam
2026 | 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. Before beginning a lifting operation, what is the operator's most important
first responsibility?
A. Increase engine speed
B. Verify the crane's configuration, capacity, operating area, and planned lift
C. Extend the boom completely
D. Test the horn
Answer: Verify the crane's configuration, capacity, operating area, and planned
lift
Rationale: The operator must understand the crane's actual configuration and
the conditions affecting capacity and stability before making a lift.
2. A crane's rated capacity is primarily determined by which factors?
A. Engine horsepower only
B. Operator experience only
C. Crane configuration, load radius, structural limitations, and stability
D. The weight of the counterweight alone
,Answer: Crane configuration, load radius, structural limitations, and stability
Rationale: Rated capacity varies with configuration and operating conditions.
The load chart must be interpreted for the exact setup being used.
3. What happens to crane capacity as the load radius generally increases?
A. It increases
B. It remains constant
C. It generally decreases
D. It doubles
Answer: It generally decreases
Rationale: A larger working radius creates a greater overturning moment,
reducing the crane's allowable capacity.
4. What is the purpose of outriggers on a mobile crane?
A. To increase engine power
B. To provide additional stability and distribute loads
C. To increase hoist speed
D. To shorten the boom
Answer: To provide additional stability and distribute loads
Rationale: Properly deployed outriggers increase the crane's stability and help
transfer forces to the supporting surface.
5. When a crane is set up on outriggers, the operator should determine the
allowable capacity from:
A. The maximum capacity printed on the crane
B. The smallest load chart capacity applicable to the actual configuration
C. The crane's engine size
D. The weight of the hook block
Answer: The smallest load chart capacity applicable to the actual configuration
,Rationale: The correct load chart must correspond to boom length, radius,
counterweight, outrigger configuration, jib, and other applicable conditions.
6. What is the effect of a longer boom on crane lifting capacity?
A. It always increases capacity
B. It can reduce capacity depending on the configuration and radius
C. It has no effect
D. It eliminates the need for a load chart
Answer: It can reduce capacity depending on the configuration and radius
Rationale: Longer boom configurations can increase structural and stability
demands and therefore may have lower allowable capacities.
7. What should an operator do if the load weight cannot be determined
reliably?
A. Lift it slowly
B. Assume it is within capacity
C. Do not make the lift until the weight is adequately established
D. Add another signalperson
Answer: Do not make the lift until the weight is adequately established
Rationale: An unknown load weight prevents accurate capacity calculations and
creates an unacceptable risk of overload.
8. What is gross load weight?
A. Load weight excluding the rigging
B. The weight of the crane
C. The total suspended weight considered by the crane, including applicable
rigging and below-the-hook equipment
D. The weight of the counterweight
Answer: The total suspended weight considered by the crane, including
applicable rigging and below-the-hook equipment
, Rationale: The operator must account for the load and applicable suspended
components when determining whether the crane is within capacity.
9. A crane is operating at a 40-foot radius with a load. If the load moves to a
60-foot radius, what happens to the overturning moment?
A. It decreases
B. It remains unchanged
C. It increases
D. It becomes zero
Answer: It increases
Rationale: Overturning moment is directly affected by load weight and
horizontal distance from the tipping axis. Increasing radius increases the
moment.
10.What is the primary purpose of a crane load chart?
A. To identify the fuel type
B. To determine permissible lifting capacity under specified configurations and
conditions
C. To identify the operator
D. To determine tire pressure
Answer: To determine permissible lifting capacity under specified configurations
and conditions
Rationale: Load charts establish allowable capacities based on specific crane
configurations and operating conditions.
11.Why must the operator know the actual boom length?
A. Boom length affects the crane's rated capacity and operating geometry
B. It only affects paint requirements
C. It has no relationship to capacity
D. It determines engine oil capacity
