Mobile Crane Questions Test #4 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Jib offset is the jib angle to the: - CORRECT ANSWER Boom.
All hazards and problems that are found on the worksite should be identified: - CORRECT
ANSWER At the preoperational worksite inspection.
Which of the following OSHA regulations govern suspended personnel platforms - CORRECT
ANSWER OSHA 1926.1400(e).
According to OSHA the prohibited zone without a spotter for powerlines that are 60 kV, is: -
CORRECT ANSWER 15 ft.
What percentage of gross capacity is used when lifting with more than one crane? - CORRECT
ANSWER 75%.
You are required to pass a physical exam every _______ years. According to ASME B30.5? -
CORRECT ANSWER 3 years.
How many broken wires at an end socket of a standing wire rope are allowed before the wire
rope must be replaced? - CORRECT ANSWER 1.
When operating a mobile crane, you inspect your running wire rope at least: - CORRECT
ANSWER Every shift.
When lifting a load with more than one crane, it is important to: - CORRECT
ANSWER Keep the hoist lines of both cranes vertical.
, Rotation resistant wire rope has a design factor of: - CORRECT ANSWER 5 to 1.
Line pull is: - CORRECT ANSWER The amount of weight a drum will hoist for a given
layer.
Boom length is: - CORRECT ANSWER Center of the foot pins to the center of the head
sheave pins.
The weight of the stowed jib used in the load calculation: - CORRECT
ANSWER Effective weight.
A crane's rated capacity is based upon: - CORRECT ANSWER Structural and stability.
When lifting a suspended personnel platform with two or more legs the safety factor for the
rigging hardware is: - CORRECT ANSWER 5 times the intended load.
If using cranes of different rated capacities, the crane with the larger rated capacity: - CORRECT
ANSWER Should be hooked a distance closer to the loads center of gravity.
Hoist ropes that are not rotation resistant must have a design factor of: - CORRECT
ANSWER 3.5 to 1.
Backward stability on a R/T crane could be a problem when the crane is working: - CORRECT
ANSWER Over the side at a minimum radius.
It is important to inspect rotation resistant wire rope more frequently because: - CORRECT
ANSWER Internal damage will occur more frequently.
It is important to know when lubricating wire rope that the lubricant must: - CORRECT
ANSWER Not hinder visual inspection.
ACTUAL Exam Questions and CORRECT
Answers
Jib offset is the jib angle to the: - CORRECT ANSWER Boom.
All hazards and problems that are found on the worksite should be identified: - CORRECT
ANSWER At the preoperational worksite inspection.
Which of the following OSHA regulations govern suspended personnel platforms - CORRECT
ANSWER OSHA 1926.1400(e).
According to OSHA the prohibited zone without a spotter for powerlines that are 60 kV, is: -
CORRECT ANSWER 15 ft.
What percentage of gross capacity is used when lifting with more than one crane? - CORRECT
ANSWER 75%.
You are required to pass a physical exam every _______ years. According to ASME B30.5? -
CORRECT ANSWER 3 years.
How many broken wires at an end socket of a standing wire rope are allowed before the wire
rope must be replaced? - CORRECT ANSWER 1.
When operating a mobile crane, you inspect your running wire rope at least: - CORRECT
ANSWER Every shift.
When lifting a load with more than one crane, it is important to: - CORRECT
ANSWER Keep the hoist lines of both cranes vertical.
, Rotation resistant wire rope has a design factor of: - CORRECT ANSWER 5 to 1.
Line pull is: - CORRECT ANSWER The amount of weight a drum will hoist for a given
layer.
Boom length is: - CORRECT ANSWER Center of the foot pins to the center of the head
sheave pins.
The weight of the stowed jib used in the load calculation: - CORRECT
ANSWER Effective weight.
A crane's rated capacity is based upon: - CORRECT ANSWER Structural and stability.
When lifting a suspended personnel platform with two or more legs the safety factor for the
rigging hardware is: - CORRECT ANSWER 5 times the intended load.
If using cranes of different rated capacities, the crane with the larger rated capacity: - CORRECT
ANSWER Should be hooked a distance closer to the loads center of gravity.
Hoist ropes that are not rotation resistant must have a design factor of: - CORRECT
ANSWER 3.5 to 1.
Backward stability on a R/T crane could be a problem when the crane is working: - CORRECT
ANSWER Over the side at a minimum radius.
It is important to inspect rotation resistant wire rope more frequently because: - CORRECT
ANSWER Internal damage will occur more frequently.
It is important to know when lubricating wire rope that the lubricant must: - CORRECT
ANSWER Not hinder visual inspection.
