NCCCO CORE CERTIFICATION
PRACTICE EXAM QUESTIONS WITH
VERIFIED ANSWERS 2026/2027
1. According to ASME B30.5, what is the minimum number of full wraps of rope that must
remain on the drum when the hook is in its lowest position?
A. One full wrap
B. Four full wraps
C. Three full wraps
D. Two full wraps
Answer: D
Conceptual Explanation: ASME B30.5 and OSHA 1926.1416(d)(2) require that no less
than two full wraps of rope remain on the drum when the hook is at its lowest point to
ensure the rope does not pull out of its attachment.
2. When a crane is working near power lines of 50kV, what is the minimum clearance distance
required by OSHA 1926.1408?
A. 15 feet
B. 10 feet
,C. 20 feet
D. 50 feet
Answer: B
Conceptual Explanation: For lines up to 50kV, the minimum clearance is 10 feet. For
voltages over 50kV, the distance increases (typically 10 feet plus 0.4 inches for every 1kV
over 50kV).
3. On a load chart, the values listed above the bold line or within the shaded area are based
on what factor?
A. Structural competence
B. Tipping
C. Stability
D. Line pull
Answer: A
Conceptual Explanation: Values above the bold line are based on the structural strength
of the crane’s components, whereas values below the line are based on the stability
(tipping) of the crane.
4. What is the net capacity of a crane if the gross capacity is 50,000 lbs and the total weight of
deductions (hook block, rigging, and stowed jib) is 2,500 lbs?
A. 52,500 lbs
, B. 50,000 lbs
C. 47,500 lbs
D. 45,000 lbs
Answer: C
Conceptual Explanation: Net capacity is calculated by subtracting all deductions (weight
of accessories and stowed/erected attachments) from the gross capacity: 50,000 - 2,500 =
47,500 lbs.
5. Which of the following can cause side loading on a crane boom?
A. Lifting a load vertically
B. None of the above
C. Extending the boom under load
D. Using outrigger pads
E. Rapidly swinging a load
Answer: E
Conceptual Explanation: Side loading is caused by swinging the load too rapidly
(centrifugal force), lifting a load that is not directly under the boom tip, or wind pressure.
6. How is the ‘load radius’ defined in crane operations?
A. The distance from the center of rotation to the tip of the boom
PRACTICE EXAM QUESTIONS WITH
VERIFIED ANSWERS 2026/2027
1. According to ASME B30.5, what is the minimum number of full wraps of rope that must
remain on the drum when the hook is in its lowest position?
A. One full wrap
B. Four full wraps
C. Three full wraps
D. Two full wraps
Answer: D
Conceptual Explanation: ASME B30.5 and OSHA 1926.1416(d)(2) require that no less
than two full wraps of rope remain on the drum when the hook is at its lowest point to
ensure the rope does not pull out of its attachment.
2. When a crane is working near power lines of 50kV, what is the minimum clearance distance
required by OSHA 1926.1408?
A. 15 feet
B. 10 feet
,C. 20 feet
D. 50 feet
Answer: B
Conceptual Explanation: For lines up to 50kV, the minimum clearance is 10 feet. For
voltages over 50kV, the distance increases (typically 10 feet plus 0.4 inches for every 1kV
over 50kV).
3. On a load chart, the values listed above the bold line or within the shaded area are based
on what factor?
A. Structural competence
B. Tipping
C. Stability
D. Line pull
Answer: A
Conceptual Explanation: Values above the bold line are based on the structural strength
of the crane’s components, whereas values below the line are based on the stability
(tipping) of the crane.
4. What is the net capacity of a crane if the gross capacity is 50,000 lbs and the total weight of
deductions (hook block, rigging, and stowed jib) is 2,500 lbs?
A. 52,500 lbs
, B. 50,000 lbs
C. 47,500 lbs
D. 45,000 lbs
Answer: C
Conceptual Explanation: Net capacity is calculated by subtracting all deductions (weight
of accessories and stowed/erected attachments) from the gross capacity: 50,000 - 2,500 =
47,500 lbs.
5. Which of the following can cause side loading on a crane boom?
A. Lifting a load vertically
B. None of the above
C. Extending the boom under load
D. Using outrigger pads
E. Rapidly swinging a load
Answer: E
Conceptual Explanation: Side loading is caused by swinging the load too rapidly
(centrifugal force), lifting a load that is not directly under the boom tip, or wind pressure.
6. How is the ‘load radius’ defined in crane operations?
A. The distance from the center of rotation to the tip of the boom
