NCCCO Telescopic Boom Crane – Swing Cab (TLL) Comprehensive Practice Exam | 200
Original Certification-Style Questions, Verified Answers & Detailed Rationales | 2026–2027
Study Guide
Original Practice Exam – Part 1
Questions 1–10
Question 1
Before setting up a swing cab telescopic boom crane, what should the operator verify first?
A. Fuel level is above half a tank.
B. Ground conditions can support the crane and anticipated load.
C. The boom is fully extended.
D. The swing brake is disengaged.
Correct Answer: B
Rationale: Ground conditions are critical to crane stability. OSHA requires the supporting
surface to be firm, drained, and capable of supporting the crane and the imposed loads.
Question 2
When using outriggers, the crane should be:
A. Slightly tilted away from the load.
B. Level within the manufacturer's specified tolerance.
C. Positioned with one outrigger partially extended.
D. Set up on loose gravel whenever possible.
Correct Answer: B
Rationale: Load charts assume the crane is level. Even a slight tilt can reduce stability and
increase the risk of overturning.
Question 3
As the boom length increases while the load radius remains constant, lifting capacity
generally:
,A. Increases.
B. Remains unchanged.
C. Decreases.
D. Doubles.
Correct Answer: C
Rationale: Longer boom lengths reduce the crane's rated capacity due to increased
leverage and structural loading.
Question 4
Which document provides the crane's maximum lifting capacities under various operating
configurations?
A. Maintenance log
B. Operator's time sheet
C. Load chart
D. Inspection checklist
Correct Answer: C
Rationale: The load chart specifies rated capacities based on boom length, radius, boom
angle, and outrigger configuration.
Question 5
What is the purpose of a lift plan?
A. To increase crane speed.
B. To identify hazards and determine the safest method for completing the lift.
C. To reduce fuel consumption.
D. To eliminate the need for inspections.
Correct Answer: B
,Rationale: Lift planning identifies hazards, equipment requirements, personnel
responsibilities, and the safest method of completing the lift.
Question 6
The operator notices the load beginning to swing while hoisting. What should be done?
A. Continue lifting until the load stabilizes.
B. Stop the movement and control the swing before continuing.
C. Increase hoist speed.
D. Swing the crane in the opposite direction quickly.
Correct Answer: B
Rationale: Load swing creates dynamic forces that can overload the crane or cause the
load to strike nearby objects or personnel.
Question 7
Before lifting, the operator must know:
A. The weight of the load.
B. The crane's rated capacity at the planned radius.
C. The rigging weight.
D. All of the above.
Correct Answer: D
Rationale: Total load includes the object being lifted and all rigging. The operator must
verify that the combined weight is within the crane's rated capacity.
Question 8
What is the primary function of cribbing beneath outriggers?
A. Increase tire pressure.
B. Spread the load over a larger supporting surface.
, C. Improve boom extension speed.
D. Reduce engine vibration.
Correct Answer: B
Rationale: Cribbing distributes outrigger forces over a larger area, helping prevent sinking
or shifting on soft ground.
Question 9
When is side loading of the boom permitted?
A. During light lifts only.
B. When approved by the signal person.
C. Only if the wind is calm.
D. Never, unless specifically permitted by the manufacturer.
Correct Answer: D
Rationale: Crane booms are designed primarily for vertical loading. Side loading can
cause structural damage and tip-overs unless specifically allowed by the manufacturer.
Question 10
Who has the authority to stop a lift if an unsafe condition develops?
A. Only the site supervisor.
B. Only the crane owner.
C. Any worker involved who recognizes the hazard.
D. Only the signal person.
Correct Answer: C
Rationale: OSHA encourages all personnel involved in crane operations to stop work when
an unsafe condition is observed. Safety takes priority over production.
Original Certification-Style Questions, Verified Answers & Detailed Rationales | 2026–2027
Study Guide
Original Practice Exam – Part 1
Questions 1–10
Question 1
Before setting up a swing cab telescopic boom crane, what should the operator verify first?
A. Fuel level is above half a tank.
B. Ground conditions can support the crane and anticipated load.
C. The boom is fully extended.
D. The swing brake is disengaged.
Correct Answer: B
Rationale: Ground conditions are critical to crane stability. OSHA requires the supporting
surface to be firm, drained, and capable of supporting the crane and the imposed loads.
Question 2
When using outriggers, the crane should be:
A. Slightly tilted away from the load.
B. Level within the manufacturer's specified tolerance.
C. Positioned with one outrigger partially extended.
D. Set up on loose gravel whenever possible.
Correct Answer: B
Rationale: Load charts assume the crane is level. Even a slight tilt can reduce stability and
increase the risk of overturning.
Question 3
As the boom length increases while the load radius remains constant, lifting capacity
generally:
,A. Increases.
B. Remains unchanged.
C. Decreases.
D. Doubles.
Correct Answer: C
Rationale: Longer boom lengths reduce the crane's rated capacity due to increased
leverage and structural loading.
Question 4
Which document provides the crane's maximum lifting capacities under various operating
configurations?
A. Maintenance log
B. Operator's time sheet
C. Load chart
D. Inspection checklist
Correct Answer: C
Rationale: The load chart specifies rated capacities based on boom length, radius, boom
angle, and outrigger configuration.
Question 5
What is the purpose of a lift plan?
A. To increase crane speed.
B. To identify hazards and determine the safest method for completing the lift.
C. To reduce fuel consumption.
D. To eliminate the need for inspections.
Correct Answer: B
,Rationale: Lift planning identifies hazards, equipment requirements, personnel
responsibilities, and the safest method of completing the lift.
Question 6
The operator notices the load beginning to swing while hoisting. What should be done?
A. Continue lifting until the load stabilizes.
B. Stop the movement and control the swing before continuing.
C. Increase hoist speed.
D. Swing the crane in the opposite direction quickly.
Correct Answer: B
Rationale: Load swing creates dynamic forces that can overload the crane or cause the
load to strike nearby objects or personnel.
Question 7
Before lifting, the operator must know:
A. The weight of the load.
B. The crane's rated capacity at the planned radius.
C. The rigging weight.
D. All of the above.
Correct Answer: D
Rationale: Total load includes the object being lifted and all rigging. The operator must
verify that the combined weight is within the crane's rated capacity.
Question 8
What is the primary function of cribbing beneath outriggers?
A. Increase tire pressure.
B. Spread the load over a larger supporting surface.
, C. Improve boom extension speed.
D. Reduce engine vibration.
Correct Answer: B
Rationale: Cribbing distributes outrigger forces over a larger area, helping prevent sinking
or shifting on soft ground.
Question 9
When is side loading of the boom permitted?
A. During light lifts only.
B. When approved by the signal person.
C. Only if the wind is calm.
D. Never, unless specifically permitted by the manufacturer.
Correct Answer: D
Rationale: Crane booms are designed primarily for vertical loading. Side loading can
cause structural damage and tip-overs unless specifically allowed by the manufacturer.
Question 10
Who has the authority to stop a lift if an unsafe condition develops?
A. Only the site supervisor.
B. Only the crane owner.
C. Any worker involved who recognizes the hazard.
D. Only the signal person.
Correct Answer: C
Rationale: OSHA encourages all personnel involved in crane operations to stop work when
an unsafe condition is observed. Safety takes priority over production.
