NCCCO
Mobile Crane Core Study Guide 2026 | Exam Prep,
Practice Questions & Detailed Answers
This Exam Includes:
❖ 100+ practice questions
❖ Correct answers
❖ Detailed explanations and rationales
❖ Mobile crane exam preparation
, NCCCO Mobile Crane Core Study
Guide 2026 | Exam Prep, Practice
Questions & Detailed Answers
1. When should a tagline be used?
A) When rotation may be hazardous
B) When the load weighs less than 500 lb
C) When using a basket hitch only
D) When lifting over water
Correct: A
Rationale: Taglines control load rotation and keep workers clear.
2. What is the cause of boom deflection?
A) Lifting light loads
B) Lifting heavy loads
C) Excessive boom angle
D) High wind only
Correct: B
Rationale: Heavy loads increase bending stress and boom
deflection.
,3. What describes a load applied at an angle to the vertical plane?
A) Axial loading
B) Dynamic loading
C) Side loading
D) Gross loading
Correct: C
Rationale: Side loading is a force outside the intended vertical
plane.
4. What are the deductions when calculating parts of line?
A) Boom weight, counterweight, and jib
B) Wind, radius, and boom angle
C) Only the payload weight
D) Load weight, rigging, and load block
Correct: D
Rationale: Gross load includes payload, rigging, and load block.
5. According to OSHA 1926 Subpart CC, what is prohibited on the
main line?
A) Splicing
B) Lubricating
C) Inspecting
D) Spooling
Correct: A
, Rationale: Splicing the main hoist line compromises rope
integrity.
6. What is the result of rapid hoist acceleration?
A) Side loading
B) Dynamic loading
C) Boom deflection
D) Two-blocking
Correct: B
Rationale: Rapid acceleration adds dynamic forces beyond static
weight.
7. When considering where to set up the crane, what would be of
significant concern for the controlling entity?
A) Paint color
B) Operator’s lunch break
C) Ground conditions
D) Load color
Correct: C
Rationale: Poor ground can cause tipping or settlement.
8. According to ASME B30.5, what is the maximum time frame
between physical exams required of an operator unless required
by a supervisor?
Mobile Crane Core Study Guide 2026 | Exam Prep,
Practice Questions & Detailed Answers
This Exam Includes:
❖ 100+ practice questions
❖ Correct answers
❖ Detailed explanations and rationales
❖ Mobile crane exam preparation
, NCCCO Mobile Crane Core Study
Guide 2026 | Exam Prep, Practice
Questions & Detailed Answers
1. When should a tagline be used?
A) When rotation may be hazardous
B) When the load weighs less than 500 lb
C) When using a basket hitch only
D) When lifting over water
Correct: A
Rationale: Taglines control load rotation and keep workers clear.
2. What is the cause of boom deflection?
A) Lifting light loads
B) Lifting heavy loads
C) Excessive boom angle
D) High wind only
Correct: B
Rationale: Heavy loads increase bending stress and boom
deflection.
,3. What describes a load applied at an angle to the vertical plane?
A) Axial loading
B) Dynamic loading
C) Side loading
D) Gross loading
Correct: C
Rationale: Side loading is a force outside the intended vertical
plane.
4. What are the deductions when calculating parts of line?
A) Boom weight, counterweight, and jib
B) Wind, radius, and boom angle
C) Only the payload weight
D) Load weight, rigging, and load block
Correct: D
Rationale: Gross load includes payload, rigging, and load block.
5. According to OSHA 1926 Subpart CC, what is prohibited on the
main line?
A) Splicing
B) Lubricating
C) Inspecting
D) Spooling
Correct: A
, Rationale: Splicing the main hoist line compromises rope
integrity.
6. What is the result of rapid hoist acceleration?
A) Side loading
B) Dynamic loading
C) Boom deflection
D) Two-blocking
Correct: B
Rationale: Rapid acceleration adds dynamic forces beyond static
weight.
7. When considering where to set up the crane, what would be of
significant concern for the controlling entity?
A) Paint color
B) Operator’s lunch break
C) Ground conditions
D) Load color
Correct: C
Rationale: Poor ground can cause tipping or settlement.
8. According to ASME B30.5, what is the maximum time frame
between physical exams required of an operator unless required
by a supervisor?
