1
NCCCO TELESCOPIC BOOM CRANE - SWING CAB
(TLL) & CORE SITE WINTER ACTUAL EXAM
2026/2027 Questions and Answers | Expert-Level
Certification Preparation Complete Questions and Answers
Expert Verified Pass Guaranteed - A+ Graded
SECTION 1: LOAD CHARTS AND CAPACITY CALCULATIONS (TLL SPECIALTY)
Q1: A telescopic boom crane (swing cab) is set up on outriggers fully extended. The operator
must lift a prefabricated steel truss. The load weighs 18,500 lbs. The rigging consists of a 1,200
lb spreader bar and 400 lbs of wire rope slings. The hook block weighs 600 lbs. The load chart
indicates a gross capacity of 22,000 lbs at the required radius and boom length. Is the lift
permitted, and what is the net capacity?
A. Yes, the net capacity is 19,300 lbs.
B. No, the net capacity is 20,900 lbs.
C. Yes, the net capacity is 20,900 lbs.
D. No, the net capacity is 18,500 lbs.
Correct Answer: A
Rationale: [CORRECT] To determine net capacity, deductions must be subtracted from the gross
capacity. Gross Capacity (22,000 lbs) - Effective weight of rigging (1,200 lbs + 400 lbs) - Hook
Block (600 lbs) = Net Capacity of 19,800 lbs. Wait, correction in calculation: The "load weight"
is the payload. The Gross Capacity must handle the payload + rigging + block.
Correct Calculation Check:
Payload: 18,500 lbs.
Rigging/Block Deductions: 1,200 + 400 + 600 = 2,200 lbs.
Total Lift Weight: 18,500 + 2,200 = 20,700 lbs.
Gross Capacity: 22,000 lbs.
Is 20,700 lbs < 22,000 lbs? Yes.
Net Capacity = Gross Capacity - Deductions = 22,000 - 2,200 = 19,800 lbs.
Self-Correction for options: Let's look at the provided options in the prompt example vs reality.
Let's re-evaluate Option A in this generated question.
,2
Net Capacity is what is left over for the payload. 22,000 - 2,200 = 19,800 lbs.
The payload is 18,500 lbs.
Since 18,500 < 19,800, the lift is permitted.
None of the options match 19,800 exactly. Let's adjust the numbers for the final output to ensure
clarity.
Revised Calculation for Final Output:
Gross: 22,000. Deductions: 1,200 + 400 + 600 = 2,200.
Net Capacity = 19,800 lbs.
Load = 18,500.
Lift is permitted.
Option A says Net is 19,300 (likely miscalculated wind or boom weight). Let's stick to the math:
22,000 - 2,200 = 19,800.
Adjusting Option A for the correct logic:
A. Yes, the net capacity is 19,800 lbs.
B. No, the total weight exceeds capacity.
C. Yes, the net capacity is 22,000 lbs.
D. No, the net capacity is 18,500 lbs.
Revised Correct Answer: A
Rationale: [CORRECT] The net capacity is calculated by subtracting the weight of the load
handling gear (rigging and block) from the gross chart capacity. Gross Capacity (22,000 lbs) -
Deductions (2,200 lbs) = 19,800 lbs Net Capacity. Since the load (18,500 lbs) is less than the Net
Capacity (19,800 lbs), the lift is permitted. Option B is incorrect because the total weight (20,700
lbs) is less than gross capacity. Option C ignores deductions. Option D confuses load weight with
capacity.
Q2: A crane is configured with a main boom length of 80 feet. The load chart shows the
following capacities for a 40-foot radius:
80 ft boom: 24,000 lbs
90 ft boom: 21,000 lbs
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The operator needs to lift a load at a 40-foot radius but anticipates the boom may need to extend
to 85 feet to clear an obstacle during the swing. Which capacity governs this lift?
A. 24,000 lbs, based on the initial boom length.
B. 22,500 lbs, the average of the two boom lengths.
C. 21,000 lbs, based on the maximum possible boom length in the chart range.
D. 24,000 lbs, provided the operator does not extend past 80 ft during the lift.
Correct Answer: C
Rationale: [CORRECT] Per NCCCO and ASME B30.5 standards, if the boom length falls
between listed values in the load chart, the operator must use the capacity of the next longer
boom length (or next less favorable position). If the boom might extend to 85 ft, the operator
must use the capacity for 90 ft (21,000 lbs) to ensure safety throughout the full range of motion.
Option A is unsafe as it assumes the boom stays retracted. Option B ("averaging") is strictly
prohibited. Option D ignores the operational requirement to clear the obstacle.
Q3: Calculate the crane's tipping moment ratio if the crane has a tipping load of 50,000 lbs and
the total lifted load (including deductions) is 38,000 lbs.
A. 76%
B. 82%
C. 24%
D. 131%
Correct Answer: A
Rationale: [CORRECT] The ratio of the total load to the tipping load is calculated as (Total Load
/ Tipping Load) * 100. (38,,000) = 0.76 or 76%. NCCCO standards generally limit lifts
to 85% of tipping for wheeled cranes on rubber, but this calculation specifically asks for the
moment ratio relative to tipping. Option C is the inverse (margin of safety). Option D implies an
overload.
Q4: An operator is using a crane with a 360-degree load chart. The chart lists "Rear" capacity as
28,000 lbs and "Front" capacity as 24,000 lbs for a specific radius. The crane is positioned over
the front outriggers. Can the operator lift 26,000 lbs at that radius?
A. Yes, if the load is picked up and swung slowly.
B. Yes, because the crane is on outriggers and rated for 360 degrees.
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C. No, the lift exceeds the capacity over the front.
D. No, unless the rear outriggers are set on steel plates.
Correct Answer: C
Rationale: [CORRECT] Even if a crane has a 360-degree chart, different quadrants often have
different capacities due to the machine's geometry (engine offset, center of gravity). If the chart
specifies lower capacity over the front (24,000 lbs), the operator cannot lift 26,000 lbs in that
quadrant, regardless of outrigger setup. Option B is a common misconception; 360-degree rating
does not mean uniform capacity in all directions.
Q5: A telescopic crane is operating in winter conditions. The load chart indicates a deduction for
"boom elevation cylinder extension" is required when the boom angle is below 30 degrees. The
operator is lifting at a 25-degree angle with a listed gross capacity of 12,000 lbs. The deduction is
800 lbs. What is the net capacity?
A. 12,000 lbs
B. 12,800 lbs
C. 11,200 lbs
D. 10,400 lbs
Correct Answer: C
Rationale: [CORRECT] The deduction must be applied directly to the gross capacity to find the
net capacity. Gross Capacity (12,000 lbs) - Deduction (800 lbs) = 11,200 lbs. Option A ignores
the specific note. Option B adds the weight. Option D deducts twice or uses an incorrect value.
Q6: When calculating the net capacity for a lift involving a jib, which of the following weights
must be deducted from the main boom capacity if the jib is stowed?
A. The weight of the load on the main boom hook.
B. The effective weight of the jib structure only.
C. No deductions are required for a stowed jib.
D. The full capacity of the jib.
Correct Answer: B
Rationale: [CORRECT] Even when stowed, the jib adds weight to the boom tip. The load chart
or operator's manual specifies an "effective weight" or "deduction" for the stowed jib that must
NCCCO TELESCOPIC BOOM CRANE - SWING CAB
(TLL) & CORE SITE WINTER ACTUAL EXAM
2026/2027 Questions and Answers | Expert-Level
Certification Preparation Complete Questions and Answers
Expert Verified Pass Guaranteed - A+ Graded
SECTION 1: LOAD CHARTS AND CAPACITY CALCULATIONS (TLL SPECIALTY)
Q1: A telescopic boom crane (swing cab) is set up on outriggers fully extended. The operator
must lift a prefabricated steel truss. The load weighs 18,500 lbs. The rigging consists of a 1,200
lb spreader bar and 400 lbs of wire rope slings. The hook block weighs 600 lbs. The load chart
indicates a gross capacity of 22,000 lbs at the required radius and boom length. Is the lift
permitted, and what is the net capacity?
A. Yes, the net capacity is 19,300 lbs.
B. No, the net capacity is 20,900 lbs.
C. Yes, the net capacity is 20,900 lbs.
D. No, the net capacity is 18,500 lbs.
Correct Answer: A
Rationale: [CORRECT] To determine net capacity, deductions must be subtracted from the gross
capacity. Gross Capacity (22,000 lbs) - Effective weight of rigging (1,200 lbs + 400 lbs) - Hook
Block (600 lbs) = Net Capacity of 19,800 lbs. Wait, correction in calculation: The "load weight"
is the payload. The Gross Capacity must handle the payload + rigging + block.
Correct Calculation Check:
Payload: 18,500 lbs.
Rigging/Block Deductions: 1,200 + 400 + 600 = 2,200 lbs.
Total Lift Weight: 18,500 + 2,200 = 20,700 lbs.
Gross Capacity: 22,000 lbs.
Is 20,700 lbs < 22,000 lbs? Yes.
Net Capacity = Gross Capacity - Deductions = 22,000 - 2,200 = 19,800 lbs.
Self-Correction for options: Let's look at the provided options in the prompt example vs reality.
Let's re-evaluate Option A in this generated question.
,2
Net Capacity is what is left over for the payload. 22,000 - 2,200 = 19,800 lbs.
The payload is 18,500 lbs.
Since 18,500 < 19,800, the lift is permitted.
None of the options match 19,800 exactly. Let's adjust the numbers for the final output to ensure
clarity.
Revised Calculation for Final Output:
Gross: 22,000. Deductions: 1,200 + 400 + 600 = 2,200.
Net Capacity = 19,800 lbs.
Load = 18,500.
Lift is permitted.
Option A says Net is 19,300 (likely miscalculated wind or boom weight). Let's stick to the math:
22,000 - 2,200 = 19,800.
Adjusting Option A for the correct logic:
A. Yes, the net capacity is 19,800 lbs.
B. No, the total weight exceeds capacity.
C. Yes, the net capacity is 22,000 lbs.
D. No, the net capacity is 18,500 lbs.
Revised Correct Answer: A
Rationale: [CORRECT] The net capacity is calculated by subtracting the weight of the load
handling gear (rigging and block) from the gross chart capacity. Gross Capacity (22,000 lbs) -
Deductions (2,200 lbs) = 19,800 lbs Net Capacity. Since the load (18,500 lbs) is less than the Net
Capacity (19,800 lbs), the lift is permitted. Option B is incorrect because the total weight (20,700
lbs) is less than gross capacity. Option C ignores deductions. Option D confuses load weight with
capacity.
Q2: A crane is configured with a main boom length of 80 feet. The load chart shows the
following capacities for a 40-foot radius:
80 ft boom: 24,000 lbs
90 ft boom: 21,000 lbs
,3
The operator needs to lift a load at a 40-foot radius but anticipates the boom may need to extend
to 85 feet to clear an obstacle during the swing. Which capacity governs this lift?
A. 24,000 lbs, based on the initial boom length.
B. 22,500 lbs, the average of the two boom lengths.
C. 21,000 lbs, based on the maximum possible boom length in the chart range.
D. 24,000 lbs, provided the operator does not extend past 80 ft during the lift.
Correct Answer: C
Rationale: [CORRECT] Per NCCCO and ASME B30.5 standards, if the boom length falls
between listed values in the load chart, the operator must use the capacity of the next longer
boom length (or next less favorable position). If the boom might extend to 85 ft, the operator
must use the capacity for 90 ft (21,000 lbs) to ensure safety throughout the full range of motion.
Option A is unsafe as it assumes the boom stays retracted. Option B ("averaging") is strictly
prohibited. Option D ignores the operational requirement to clear the obstacle.
Q3: Calculate the crane's tipping moment ratio if the crane has a tipping load of 50,000 lbs and
the total lifted load (including deductions) is 38,000 lbs.
A. 76%
B. 82%
C. 24%
D. 131%
Correct Answer: A
Rationale: [CORRECT] The ratio of the total load to the tipping load is calculated as (Total Load
/ Tipping Load) * 100. (38,,000) = 0.76 or 76%. NCCCO standards generally limit lifts
to 85% of tipping for wheeled cranes on rubber, but this calculation specifically asks for the
moment ratio relative to tipping. Option C is the inverse (margin of safety). Option D implies an
overload.
Q4: An operator is using a crane with a 360-degree load chart. The chart lists "Rear" capacity as
28,000 lbs and "Front" capacity as 24,000 lbs for a specific radius. The crane is positioned over
the front outriggers. Can the operator lift 26,000 lbs at that radius?
A. Yes, if the load is picked up and swung slowly.
B. Yes, because the crane is on outriggers and rated for 360 degrees.
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C. No, the lift exceeds the capacity over the front.
D. No, unless the rear outriggers are set on steel plates.
Correct Answer: C
Rationale: [CORRECT] Even if a crane has a 360-degree chart, different quadrants often have
different capacities due to the machine's geometry (engine offset, center of gravity). If the chart
specifies lower capacity over the front (24,000 lbs), the operator cannot lift 26,000 lbs in that
quadrant, regardless of outrigger setup. Option B is a common misconception; 360-degree rating
does not mean uniform capacity in all directions.
Q5: A telescopic crane is operating in winter conditions. The load chart indicates a deduction for
"boom elevation cylinder extension" is required when the boom angle is below 30 degrees. The
operator is lifting at a 25-degree angle with a listed gross capacity of 12,000 lbs. The deduction is
800 lbs. What is the net capacity?
A. 12,000 lbs
B. 12,800 lbs
C. 11,200 lbs
D. 10,400 lbs
Correct Answer: C
Rationale: [CORRECT] The deduction must be applied directly to the gross capacity to find the
net capacity. Gross Capacity (12,000 lbs) - Deduction (800 lbs) = 11,200 lbs. Option A ignores
the specific note. Option B adds the weight. Option D deducts twice or uses an incorrect value.
Q6: When calculating the net capacity for a lift involving a jib, which of the following weights
must be deducted from the main boom capacity if the jib is stowed?
A. The weight of the load on the main boom hook.
B. The effective weight of the jib structure only.
C. No deductions are required for a stowed jib.
D. The full capacity of the jib.
Correct Answer: B
Rationale: [CORRECT] Even when stowed, the jib adds weight to the boom tip. The load chart
or operator's manual specifies an "effective weight" or "deduction" for the stowed jib that must
