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NCCCO TELESCOPIC BOOM CRANE - SWING
CAB (TLL) & CORE SITE WINTER ACTUAL
EXAM 2026/2027 Complete Questions and Answers
Expert Verified Pass Guaranteed - A+ Graded
SECTION 1: LOAD CHARTS AND CAPACITY CALCULATIONS (TLL SPECIALTY)
Q1: Load Chart Interpretation
A telescopic boom crane with swing cab is set up with outriggers fully extended and leveled. The
load chart indicates a capacity of 25,000 lbs at a 30-foot radius with the boom at 60 degrees.
The operator needs to lift a load of 22,000 lbs, which includes 500 lbs of rigging and 300 lbs of
hook block. The wind speed is 15 mph.
Which of the following statements is correct?
A. The lift is within capacity with a 2,200 lb margin
B. The lift exceeds capacity due to rigging deductions
C. The lift is within capacity only if wind speed decreases
D. The lift exceeds capacity due to wind speed restrictions
Correct Answer: [A]
Rationale:
• Net load calculation: 22,000 lbs (total) - 500 lbs (rigging) - 300 lbs (hook block) =
21,200 lbs net load.
• Capacity margin: 25,000 lbs (chart capacity) - 21,200 lbs (net load) = 3,800 lbs margin.
• Wind speed: 15 mph is generally acceptable unless manufacturer specifies otherwise.
• Distractor Analysis:
o B: Incorrect; rigging and hook block are already deducted.
o C: Incorrect; wind speed is within typical limits.
o D: Incorrect; 15 mph does not inherently restrict capacity.
Q2: Load Moment Indicator (LMI) and Stability
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A crane operator notices the Load Moment Indicator (LMI) flashes a warning during a lift. The
load is 18,500 lbs, and the chart capacity at the current configuration is 20,000 lbs. The crane is
on firm, level ground with outriggers fully extended.
What is the most likely cause of the LMI warning?
A. The load exceeds the chart capacity by 1,500 lbs
B. The crane is not level, causing an unstable load moment
C. The wind speed exceeds operational limits
D. The boom angle is outside the load chart parameters
Correct Answer: [B]
Rationale:
• LMI Function: Monitors real-time stability, not just static capacity. A warning suggests
dynamic instability (e.g., uneven ground, improper leveling).
• Distractor Analysis:
o A: Incorrect; 18,500 lbs is within 20,000 lbs capacity.
o C: Incorrect; wind speed is not mentioned as a factor.
o D: Incorrect; boom angle is within chart parameters.
Q3: Winter Operations – Ground Conditions
During winter operations, a crane is set up on frozen ground with outriggers on wooden mats.
The load chart assumes firm, level ground. The operator plans to lift 19,000 lbs at a 25-foot
radius, where the chart capacity is 22,000 lbs.
What adjustment must be made for safe operation?
A. Reduce capacity by 10% due to frozen ground
B. Increase outrigger spread to compensate for instability
C. Use crane pads instead of wooden mats for better support
D. Proceed as normal; frozen ground is equivalent to firm ground
Correct Answer: [A]
Rationale:
• Frozen Ground Risks: Can thaw unevenly, creating instability. NCCCO/ASME B30.5
recommends 10% capacity reduction unless ground is verified stable.
• Distractor Analysis:
o B: Incorrect; increasing spread may not address thawing risks.
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o C: Incorrect; crane pads are better but do not negate the need for capacity
adjustment.
o D: Incorrect; frozen ground is not equivalent to firm ground.
Q4: Load Chart Deductions – Multiple Crane Lifts
Two cranes are performing a tandem lift of a 35,000 lb load. Crane A has a capacity of 20,000
lbs, and Crane B has 18,000 lbs at the given radius. The lift plan accounts for dynamic loading
and uneven weight distribution.
What is the maximum allowable load for Crane A, assuming a 25% safety margin?
A. 15,000 lbs
B. 16,000 lbs
C. 17,500 lbs
D. 20,000 lbs
Correct Answer: [A]
Rationale:
• Safety Margin Calculation: 20,000 lbs × 0.75 (25% reduction) = 15,000 lbs.
• Tandem Lift Rule: Each crane must operate below its rated capacity to account for
unpredictable load shifts.
• Distractor Analysis:
o B, C, D: Incorrect; exceed the 75% rule for tandem lifts.
Q5: Boom Angle and Radius Calculation
A load chart specifies capacities at boom angles of 30°, 45°, and 60°. The operator needs to lift
12,000 lbs at a 40-foot radius. The 45° boom angle shows a capacity of 14,000 lbs, while the
60° angle shows 9,000 lbs.
What is the safest boom angle for this lift?
A. 30°
B. 45°
C. 60°
D. Intermediate angle (e.g., 50°)
Correct Answer: [B]
Rationale:
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• Boom Angle vs. Capacity: 45° provides the highest capacity (14,000 lbs) at the given
radius.
• Safety Consideration: Always choose the most stable configuration within chart limits.
• Distractor Analysis:
o A: Lower capacity at 30°.
o C: 60° reduces capacity below the load weight.
o D: Intermediate angles are not charted and should be avoided.
SECTION 2: SITE SAFETY AND REGULATORY COMPLIANCE (CORE EXAM)
Q6: OSHA 1926 Subpart CC – Assembly/Disassembly
According to OSHA 1926.1404, who is responsible for ensuring the assembly/disassembly
(A/D) director is qualified?
A. The crane operator
B. The employer
C. The site supervisor
D. The rigging crew
Correct Answer: [B]
Rationale:
• OSHA 1926.1404(c)(7): The employer must ensure the A/D director is qualified
(training, experience, knowledge of procedures).
• Distractor Analysis:
o A, C, D: Incorrect; responsibility lies with the employer.
Q7: Power Line Safety – Minimum Clearance
A crane is operating near energized power lines rated 50 kV. What is the minimum clearance
required by OSHA?
A. 10 feet
B. 15 feet
C. 20 feet
D. 25 feet
NCCCO TELESCOPIC BOOM CRANE - SWING
CAB (TLL) & CORE SITE WINTER ACTUAL
EXAM 2026/2027 Complete Questions and Answers
Expert Verified Pass Guaranteed - A+ Graded
SECTION 1: LOAD CHARTS AND CAPACITY CALCULATIONS (TLL SPECIALTY)
Q1: Load Chart Interpretation
A telescopic boom crane with swing cab is set up with outriggers fully extended and leveled. The
load chart indicates a capacity of 25,000 lbs at a 30-foot radius with the boom at 60 degrees.
The operator needs to lift a load of 22,000 lbs, which includes 500 lbs of rigging and 300 lbs of
hook block. The wind speed is 15 mph.
Which of the following statements is correct?
A. The lift is within capacity with a 2,200 lb margin
B. The lift exceeds capacity due to rigging deductions
C. The lift is within capacity only if wind speed decreases
D. The lift exceeds capacity due to wind speed restrictions
Correct Answer: [A]
Rationale:
• Net load calculation: 22,000 lbs (total) - 500 lbs (rigging) - 300 lbs (hook block) =
21,200 lbs net load.
• Capacity margin: 25,000 lbs (chart capacity) - 21,200 lbs (net load) = 3,800 lbs margin.
• Wind speed: 15 mph is generally acceptable unless manufacturer specifies otherwise.
• Distractor Analysis:
o B: Incorrect; rigging and hook block are already deducted.
o C: Incorrect; wind speed is within typical limits.
o D: Incorrect; 15 mph does not inherently restrict capacity.
Q2: Load Moment Indicator (LMI) and Stability
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A crane operator notices the Load Moment Indicator (LMI) flashes a warning during a lift. The
load is 18,500 lbs, and the chart capacity at the current configuration is 20,000 lbs. The crane is
on firm, level ground with outriggers fully extended.
What is the most likely cause of the LMI warning?
A. The load exceeds the chart capacity by 1,500 lbs
B. The crane is not level, causing an unstable load moment
C. The wind speed exceeds operational limits
D. The boom angle is outside the load chart parameters
Correct Answer: [B]
Rationale:
• LMI Function: Monitors real-time stability, not just static capacity. A warning suggests
dynamic instability (e.g., uneven ground, improper leveling).
• Distractor Analysis:
o A: Incorrect; 18,500 lbs is within 20,000 lbs capacity.
o C: Incorrect; wind speed is not mentioned as a factor.
o D: Incorrect; boom angle is within chart parameters.
Q3: Winter Operations – Ground Conditions
During winter operations, a crane is set up on frozen ground with outriggers on wooden mats.
The load chart assumes firm, level ground. The operator plans to lift 19,000 lbs at a 25-foot
radius, where the chart capacity is 22,000 lbs.
What adjustment must be made for safe operation?
A. Reduce capacity by 10% due to frozen ground
B. Increase outrigger spread to compensate for instability
C. Use crane pads instead of wooden mats for better support
D. Proceed as normal; frozen ground is equivalent to firm ground
Correct Answer: [A]
Rationale:
• Frozen Ground Risks: Can thaw unevenly, creating instability. NCCCO/ASME B30.5
recommends 10% capacity reduction unless ground is verified stable.
• Distractor Analysis:
o B: Incorrect; increasing spread may not address thawing risks.
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o C: Incorrect; crane pads are better but do not negate the need for capacity
adjustment.
o D: Incorrect; frozen ground is not equivalent to firm ground.
Q4: Load Chart Deductions – Multiple Crane Lifts
Two cranes are performing a tandem lift of a 35,000 lb load. Crane A has a capacity of 20,000
lbs, and Crane B has 18,000 lbs at the given radius. The lift plan accounts for dynamic loading
and uneven weight distribution.
What is the maximum allowable load for Crane A, assuming a 25% safety margin?
A. 15,000 lbs
B. 16,000 lbs
C. 17,500 lbs
D. 20,000 lbs
Correct Answer: [A]
Rationale:
• Safety Margin Calculation: 20,000 lbs × 0.75 (25% reduction) = 15,000 lbs.
• Tandem Lift Rule: Each crane must operate below its rated capacity to account for
unpredictable load shifts.
• Distractor Analysis:
o B, C, D: Incorrect; exceed the 75% rule for tandem lifts.
Q5: Boom Angle and Radius Calculation
A load chart specifies capacities at boom angles of 30°, 45°, and 60°. The operator needs to lift
12,000 lbs at a 40-foot radius. The 45° boom angle shows a capacity of 14,000 lbs, while the
60° angle shows 9,000 lbs.
What is the safest boom angle for this lift?
A. 30°
B. 45°
C. 60°
D. Intermediate angle (e.g., 50°)
Correct Answer: [B]
Rationale:
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• Boom Angle vs. Capacity: 45° provides the highest capacity (14,000 lbs) at the given
radius.
• Safety Consideration: Always choose the most stable configuration within chart limits.
• Distractor Analysis:
o A: Lower capacity at 30°.
o C: 60° reduces capacity below the load weight.
o D: Intermediate angles are not charted and should be avoided.
SECTION 2: SITE SAFETY AND REGULATORY COMPLIANCE (CORE EXAM)
Q6: OSHA 1926 Subpart CC – Assembly/Disassembly
According to OSHA 1926.1404, who is responsible for ensuring the assembly/disassembly
(A/D) director is qualified?
A. The crane operator
B. The employer
C. The site supervisor
D. The rigging crew
Correct Answer: [B]
Rationale:
• OSHA 1926.1404(c)(7): The employer must ensure the A/D director is qualified
(training, experience, knowledge of procedures).
• Distractor Analysis:
o A, C, D: Incorrect; responsibility lies with the employer.
Q7: Power Line Safety – Minimum Clearance
A crane is operating near energized power lines rated 50 kV. What is the minimum clearance
required by OSHA?
A. 10 feet
B. 15 feet
C. 20 feet
D. 25 feet
