NCCCO Mobile Crane Operator (TSS &
TLL) Exams | Latest 2025/2026 Update |
Verified Questions and 100% Correct
Answers | Grade A Certified Prep
Section 1: Introduction
Prepare with confidence using the NCCCO Mobile Crane Operator (TSS & TLL) Exams
– Latest 2025/2026 Certified Prep, your all-in-one study solution for mastering the
Telescopic Boom Crane Fixed Cab (TSS) and Telescopic Boom Crane Swing Cab (TLL)
exams.
This expertly compiled guide features 100% verified questions and correct answers,
meticulously aligned with the most current NCCCO exam standards for 2025/2026.
Designed by industry professionals, this Grade A Certified Prep resource offers realistic
practice questions, detailed explanations, and exam-style formatting to sharpen your test-
taking skills and reinforce critical safety knowledge.
Whether you're new to crane operations or renewing your certification, this resource is built
to help you pass on the first try — confidently, efficiently, and fully prepared.
Section 2: Exam Questions and Answers
Core Exam (Mobile Crane Operator)
1. What is the first step before operating a mobile crane on a new job site?
A. Extend the outriggers
B. Perform a site hazard assessment
C. Attach the load to the hook
D. Check the hydraulic fluid level
Correct Answer: B. Perform a site hazard assessment
Rationale: OSHA 1926.1402 requires a site hazard assessment to identify risks like
power lines, soft ground, or obstructions before crane setup.
2. What does the gross capacity on a crane’s load chart include?
A. Load weight only
B. Load, rigging, and attachments
C. Crane’s weight
D. Counterweight weight
Correct Answer: B. Load, rigging, and attachments
Rationale: Gross capacity includes the load, hook block, slings, and other
attachments, as specified by the crane’s load chart per ASME B30.5.
3. When must the anti-two-block device be inspected?
A. During the lift
B. Before each shift
, C. Weekly
D. After each lift
Correct Answer: B. Before each shift
Rationale: NCCCO and ASME B30.5 require testing the anti-two-block device
before each shift to prevent boom damage or load drop.
4. What is the minimum clearance from a 75 kV power line during crane operations?
A. 10 feet
B. 15 feet
C. 20 feet
D. 25 feet
Correct Answer: C. 20 feet
Rationale: OSHA 1926.1408 mandates a 20-foot clearance for power lines between
50–200 kV to prevent electrocution.
5. What should an operator do if a hydraulic leak is detected during setup?
A. Proceed with light loads
B. Stop operations and report the leak
C. Increase hydraulic pressure
D. Continue the lift slowly
Correct Answer: B. Stop operations and report the leak
Rationale: Hydraulic leaks pose a safety risk, requiring immediate cessation and
repair per OSHA 1926.1417.
6. What is the purpose of a crane’s level indicator?
A. To measure load weight
B. To ensure the crane is level
C. To monitor boom angle
D. To check wind speed
Correct Answer: B. To ensure the crane is level
Rationale: A level indicator confirms the crane is on stable, level ground, critical for
safe operation per ASME B30.5.
7. What does “two-blocking” mean in crane operations?
A. Lifting two loads at once
B. Hook block contacting the boom tip
C. Using two slings
D. Blocking the load’s path
Correct Answer: B. Hook block contacting the boom tip
Rationale: Two-blocking risks cable damage or load drop, prevented by the anti-two-
block device per NCCCO standards.
8. If a load chart is unavailable, what should the operator do?
A. Use a chart from another crane
B. Estimate the capacity
C. Stop operations until a chart is obtained
D. Proceed with small loads
Correct Answer: C. Stop operations until a chart is obtained
Rationale: Operating without a load chart violates OSHA 1926.1417 and NCCCO
requirements for safe lifting.
9. What is the primary role of outriggers on a mobile crane?
A. To extend the boom
B. To stabilize the crane
C. To reduce load weight
D. To adjust counterweights
TLL) Exams | Latest 2025/2026 Update |
Verified Questions and 100% Correct
Answers | Grade A Certified Prep
Section 1: Introduction
Prepare with confidence using the NCCCO Mobile Crane Operator (TSS & TLL) Exams
– Latest 2025/2026 Certified Prep, your all-in-one study solution for mastering the
Telescopic Boom Crane Fixed Cab (TSS) and Telescopic Boom Crane Swing Cab (TLL)
exams.
This expertly compiled guide features 100% verified questions and correct answers,
meticulously aligned with the most current NCCCO exam standards for 2025/2026.
Designed by industry professionals, this Grade A Certified Prep resource offers realistic
practice questions, detailed explanations, and exam-style formatting to sharpen your test-
taking skills and reinforce critical safety knowledge.
Whether you're new to crane operations or renewing your certification, this resource is built
to help you pass on the first try — confidently, efficiently, and fully prepared.
Section 2: Exam Questions and Answers
Core Exam (Mobile Crane Operator)
1. What is the first step before operating a mobile crane on a new job site?
A. Extend the outriggers
B. Perform a site hazard assessment
C. Attach the load to the hook
D. Check the hydraulic fluid level
Correct Answer: B. Perform a site hazard assessment
Rationale: OSHA 1926.1402 requires a site hazard assessment to identify risks like
power lines, soft ground, or obstructions before crane setup.
2. What does the gross capacity on a crane’s load chart include?
A. Load weight only
B. Load, rigging, and attachments
C. Crane’s weight
D. Counterweight weight
Correct Answer: B. Load, rigging, and attachments
Rationale: Gross capacity includes the load, hook block, slings, and other
attachments, as specified by the crane’s load chart per ASME B30.5.
3. When must the anti-two-block device be inspected?
A. During the lift
B. Before each shift
, C. Weekly
D. After each lift
Correct Answer: B. Before each shift
Rationale: NCCCO and ASME B30.5 require testing the anti-two-block device
before each shift to prevent boom damage or load drop.
4. What is the minimum clearance from a 75 kV power line during crane operations?
A. 10 feet
B. 15 feet
C. 20 feet
D. 25 feet
Correct Answer: C. 20 feet
Rationale: OSHA 1926.1408 mandates a 20-foot clearance for power lines between
50–200 kV to prevent electrocution.
5. What should an operator do if a hydraulic leak is detected during setup?
A. Proceed with light loads
B. Stop operations and report the leak
C. Increase hydraulic pressure
D. Continue the lift slowly
Correct Answer: B. Stop operations and report the leak
Rationale: Hydraulic leaks pose a safety risk, requiring immediate cessation and
repair per OSHA 1926.1417.
6. What is the purpose of a crane’s level indicator?
A. To measure load weight
B. To ensure the crane is level
C. To monitor boom angle
D. To check wind speed
Correct Answer: B. To ensure the crane is level
Rationale: A level indicator confirms the crane is on stable, level ground, critical for
safe operation per ASME B30.5.
7. What does “two-blocking” mean in crane operations?
A. Lifting two loads at once
B. Hook block contacting the boom tip
C. Using two slings
D. Blocking the load’s path
Correct Answer: B. Hook block contacting the boom tip
Rationale: Two-blocking risks cable damage or load drop, prevented by the anti-two-
block device per NCCCO standards.
8. If a load chart is unavailable, what should the operator do?
A. Use a chart from another crane
B. Estimate the capacity
C. Stop operations until a chart is obtained
D. Proceed with small loads
Correct Answer: C. Stop operations until a chart is obtained
Rationale: Operating without a load chart violates OSHA 1926.1417 and NCCCO
requirements for safe lifting.
9. What is the primary role of outriggers on a mobile crane?
A. To extend the boom
B. To stabilize the crane
C. To reduce load weight
D. To adjust counterweights
