NCCCO CORE FINAL EXAM STUDY
GUIDE QUESTIONS WITH VERIFIED
ANSWERS 2026/2027
1. According to OSHA 1926.1402, who is responsible for ensuring that the ground conditions
are firm, drained, and graded to a sufficient extent?
A. The crane operator
B. The crane owner
C. The controlling entity
D. The lift director
Answer: C
Conceptual Explanation: OSHA regulations state that the controlling entity is responsible
for ground conditions before crane operations begin.
2. What is the minimum clearance distance for power lines rated up to 50kV according to
OSHA 1926.1408?
A. 15 feet
B. 10 feet
C. 20 feet
,D. 45 feet
Answer: B
Conceptual Explanation: For lines up to 50kV, the minimum clearance distance is 10 feet
unless the line is de-energized and visibly grounded.
3. When is the only time an operator may leave the crane controls with a load suspended?
A. During a lunch break if the brake is set
B. If the lift is delayed by more than 10 minutes
C. Never, under any circumstances
D. Only if the employer determines it is necessary and specific safety measures are met
Answer: D
Conceptual Explanation: OSHA allows this only under very specific criteria where leaving
the load is safer than keeping it suspended, with specific safety protocols in place.
4. Which factor has the greatest effect on the capacity of a crane?
A. The load radius
B. The weight of the boom
C. The ambient temperature
D. The type of fuel used
Answer: A
, Conceptual Explanation: Load radius is a primary factor in determining a crane’s
capacity; as radius increases, capacity decreases significantly.
5. In the context of crane stability, ‘tipping’ occurs when the leverage of the load is:
A. Equal to the leverage of the crane
B. Less than the leverage of the crane
C. Half of the leverage of the crane
D. Greater than the leverage of the crane
Answer: D
Conceptual Explanation: Tipping occurs when the moment of the load exceeds the
resisting moment of the crane’s weight and configuration.
6. What is the purpose of a ‘tag line’ during a lift?
A. To prevent the load from swinging or rotating
B. To support the weight of the load
C. To signal the operator
D. To measure the height of the lift
Answer: A
Conceptual Explanation: Tag lines are used to control the rotation and swing of a load,
not to support its weight.
GUIDE QUESTIONS WITH VERIFIED
ANSWERS 2026/2027
1. According to OSHA 1926.1402, who is responsible for ensuring that the ground conditions
are firm, drained, and graded to a sufficient extent?
A. The crane operator
B. The crane owner
C. The controlling entity
D. The lift director
Answer: C
Conceptual Explanation: OSHA regulations state that the controlling entity is responsible
for ground conditions before crane operations begin.
2. What is the minimum clearance distance for power lines rated up to 50kV according to
OSHA 1926.1408?
A. 15 feet
B. 10 feet
C. 20 feet
,D. 45 feet
Answer: B
Conceptual Explanation: For lines up to 50kV, the minimum clearance distance is 10 feet
unless the line is de-energized and visibly grounded.
3. When is the only time an operator may leave the crane controls with a load suspended?
A. During a lunch break if the brake is set
B. If the lift is delayed by more than 10 minutes
C. Never, under any circumstances
D. Only if the employer determines it is necessary and specific safety measures are met
Answer: D
Conceptual Explanation: OSHA allows this only under very specific criteria where leaving
the load is safer than keeping it suspended, with specific safety protocols in place.
4. Which factor has the greatest effect on the capacity of a crane?
A. The load radius
B. The weight of the boom
C. The ambient temperature
D. The type of fuel used
Answer: A
, Conceptual Explanation: Load radius is a primary factor in determining a crane’s
capacity; as radius increases, capacity decreases significantly.
5. In the context of crane stability, ‘tipping’ occurs when the leverage of the load is:
A. Equal to the leverage of the crane
B. Less than the leverage of the crane
C. Half of the leverage of the crane
D. Greater than the leverage of the crane
Answer: D
Conceptual Explanation: Tipping occurs when the moment of the load exceeds the
resisting moment of the crane’s weight and configuration.
6. What is the purpose of a ‘tag line’ during a lift?
A. To prevent the load from swinging or rotating
B. To support the weight of the load
C. To signal the operator
D. To measure the height of the lift
Answer: A
Conceptual Explanation: Tag lines are used to control the rotation and swing of a load,
not to support its weight.
