Mobile Crane NCCER Study Guide – Complete
With Answers
Section 1: Safety & Regulations (OSHA, ASME)
1. What organization provides the federal regulations for crane and derrick
operations in the U.S.?
A) NCCER
B) ASME
C) OSHA
D) ANSI
2. What is the ASME B30.5 standard?
A) Standard for Wire Rope
B) Standard for Safety Code for Crawler, Locomotive, and Truck Cranes
C) Standard for Crane Operator Training
D) Standard for Rigging Hardware
3. When is a pre-operational inspection required?
A) At the start of each shift
B) Once a week
C) Only after a long transport
D) When the supervisor requests it
4. The primary purpose of a load moment indicator (LMI) is to:
A) Weigh the load
B) Warn the operator of an approaching hazardous condition
C) Measure wind speed
D) Control the crane's travel speed
5. According to OSHA, who is responsible for the safety of the rigging and the
lift?
A) The Signal Person
B) The Crane Operator
,C) The Rigger
D) The Competent Person
6. What is the minimum distance that a crane's suspended load should be kept
from power lines up to 50kV?
A) 10 feet
B) 20 feet
C) 50 feet
D) It depends on the wire rope used.
7. A "Competent Person" is defined as someone who:
A) Has operated a crane for over 5 years.
B) Is capable of identifying existing and predictable hazards and has authority to
correct them.
C) Has passed the NCCER written test.
D) Is the site foreman.
8. The primary purpose of an anti-two-block device is to:
A) Prevent the boom from being raised too high.
B) Prevent the hoist line from being pulled into the boom tip or the load from
contacting the boom.
C) Stop the crane from swinging.
D) Measure the load angle.
9. Before traveling with a crane, the boom should be positioned:
A) Over the rear.
B) Over the side.
C) In line with the direction of travel, and carried as low as possible.
D) It does not matter as long as the load is secure.
10. A "Stop" hand signal is given by:
A) Arm extended, palm down, moving horizontally.
B) Arm extended, palm down, moving vertically.
C) Arm extended, palm down, and held stationary.
D) Both hands clasped above the head.
, Section 2: Crane Operations & Procedures
11. The center of gravity of a load is:
A) Always in the geometric center of the load.
B) The point where the entire weight of the load is considered concentrated.
C) The topmost point of the load.
D) The point where the slings are attached.
12. What is the primary stability concern when operating a mobile crane?
A) Tire Pressure
B) Engine Horsepower
C) Load Moment
D) Boom Length
13. The rated capacity of a crane decreases as:
A) The load weight decreases.
B) The boom length increases or the operating radius increases.
C) The outriggers are fully extended.
D) The wind speed decreases.
14. What is "boom deflection"?
A) The bending of the boom under load.
B) The angle of the boom from horizontal.
C) A failure of the boom hoist cylinder.
D) The sideways lean of the crane.
15. When making a lift, the operator should first:
A) Hoist the load.
B) Know the weight of the load.
C) Swing the boom.
D) Signal the spotter.
16. The best way to confirm the weight of a load is to:
A) Ask the rigger for an estimate.
With Answers
Section 1: Safety & Regulations (OSHA, ASME)
1. What organization provides the federal regulations for crane and derrick
operations in the U.S.?
A) NCCER
B) ASME
C) OSHA
D) ANSI
2. What is the ASME B30.5 standard?
A) Standard for Wire Rope
B) Standard for Safety Code for Crawler, Locomotive, and Truck Cranes
C) Standard for Crane Operator Training
D) Standard for Rigging Hardware
3. When is a pre-operational inspection required?
A) At the start of each shift
B) Once a week
C) Only after a long transport
D) When the supervisor requests it
4. The primary purpose of a load moment indicator (LMI) is to:
A) Weigh the load
B) Warn the operator of an approaching hazardous condition
C) Measure wind speed
D) Control the crane's travel speed
5. According to OSHA, who is responsible for the safety of the rigging and the
lift?
A) The Signal Person
B) The Crane Operator
,C) The Rigger
D) The Competent Person
6. What is the minimum distance that a crane's suspended load should be kept
from power lines up to 50kV?
A) 10 feet
B) 20 feet
C) 50 feet
D) It depends on the wire rope used.
7. A "Competent Person" is defined as someone who:
A) Has operated a crane for over 5 years.
B) Is capable of identifying existing and predictable hazards and has authority to
correct them.
C) Has passed the NCCER written test.
D) Is the site foreman.
8. The primary purpose of an anti-two-block device is to:
A) Prevent the boom from being raised too high.
B) Prevent the hoist line from being pulled into the boom tip or the load from
contacting the boom.
C) Stop the crane from swinging.
D) Measure the load angle.
9. Before traveling with a crane, the boom should be positioned:
A) Over the rear.
B) Over the side.
C) In line with the direction of travel, and carried as low as possible.
D) It does not matter as long as the load is secure.
10. A "Stop" hand signal is given by:
A) Arm extended, palm down, moving horizontally.
B) Arm extended, palm down, moving vertically.
C) Arm extended, palm down, and held stationary.
D) Both hands clasped above the head.
, Section 2: Crane Operations & Procedures
11. The center of gravity of a load is:
A) Always in the geometric center of the load.
B) The point where the entire weight of the load is considered concentrated.
C) The topmost point of the load.
D) The point where the slings are attached.
12. What is the primary stability concern when operating a mobile crane?
A) Tire Pressure
B) Engine Horsepower
C) Load Moment
D) Boom Length
13. The rated capacity of a crane decreases as:
A) The load weight decreases.
B) The boom length increases or the operating radius increases.
C) The outriggers are fully extended.
D) The wind speed decreases.
14. What is "boom deflection"?
A) The bending of the boom under load.
B) The angle of the boom from horizontal.
C) A failure of the boom hoist cylinder.
D) The sideways lean of the crane.
15. When making a lift, the operator should first:
A) Hoist the load.
B) Know the weight of the load.
C) Swing the boom.
D) Signal the spotter.
16. The best way to confirm the weight of a load is to:
A) Ask the rigger for an estimate.
