Mobile Crane Questions Test #1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Where is the best location for leveling a crane? - CORRECT ANSWER Upperworks.
When determining the gross load the best method is? - CORRECT ANSWER Get an
accurate load weight and add the rigging.
By order of hitch strength, which is the correct answer? - CORRECT ANSWER Basket,
vertical, choker.
What is the primary purpose of using a jib? - CORRECT ANSWER Increase height.
When taking a side strain on a boom, what concerns the operator most? - CORRECT
ANSWER Boom damage.
You should always have how many wraps on a hoist drum? - CORRECT ANSWER 2.
On a load chart, values above the load line mean: - CORRECT ANSWER Capacities
based on structural competence.
The primary purpose for a rooster sheave or auxiliary boom point sheave is to: - CORRECT
ANSWER Separate the hoist lines.
What is the proper procedure when using an insulating link or a boot near power lines? -
CORRECT ANSWER Be sure to maintain the correct allowable distance from the lines.
, When the number of layers of rope on a drum increases the:: - CORRECT
ANSWER Allowable line pull increases.
What is the minimum allowable distance from the crane and power-lines up to 50kV? -
CORRECT ANSWER 10 ft.
The term "Upperworks" or "Superstructure" refers to the area of the crane: - CORRECT
ANSWER Above the turntable.
Side-loading may be caused by: - CORRECT ANSWER Starting or stopping the swing
too rapidly.
What is the best procedure to follow when underground utilities may be present? - CORRECT
ANSWER Contact local utility company.
Eccentric main boom tip reeving causes: - CORRECT ANSWER Twisting of the boom.
How many randomly broken wires would be cause to remove a running wire rope from service -
CORRECT ANSWER 6
When lifting personnel in a manbasket using 6 x 19 wire rope, the minimum safety factor is? -
CORRECT ANSWER 7
What is the safety factor required when using non-rotating wire rope and lifting in a manbasket?
- CORRECT ANSWER 10
Who has the responsibility for determining the correct weight of a load? - CORRECT
ANSWER Supervisor
When working near powerlines when is a signal person required? - CORRECT
ANSWER When crane moves within booms length of powerlines.
ACTUAL Exam Questions and CORRECT
Answers
Where is the best location for leveling a crane? - CORRECT ANSWER Upperworks.
When determining the gross load the best method is? - CORRECT ANSWER Get an
accurate load weight and add the rigging.
By order of hitch strength, which is the correct answer? - CORRECT ANSWER Basket,
vertical, choker.
What is the primary purpose of using a jib? - CORRECT ANSWER Increase height.
When taking a side strain on a boom, what concerns the operator most? - CORRECT
ANSWER Boom damage.
You should always have how many wraps on a hoist drum? - CORRECT ANSWER 2.
On a load chart, values above the load line mean: - CORRECT ANSWER Capacities
based on structural competence.
The primary purpose for a rooster sheave or auxiliary boom point sheave is to: - CORRECT
ANSWER Separate the hoist lines.
What is the proper procedure when using an insulating link or a boot near power lines? -
CORRECT ANSWER Be sure to maintain the correct allowable distance from the lines.
, When the number of layers of rope on a drum increases the:: - CORRECT
ANSWER Allowable line pull increases.
What is the minimum allowable distance from the crane and power-lines up to 50kV? -
CORRECT ANSWER 10 ft.
The term "Upperworks" or "Superstructure" refers to the area of the crane: - CORRECT
ANSWER Above the turntable.
Side-loading may be caused by: - CORRECT ANSWER Starting or stopping the swing
too rapidly.
What is the best procedure to follow when underground utilities may be present? - CORRECT
ANSWER Contact local utility company.
Eccentric main boom tip reeving causes: - CORRECT ANSWER Twisting of the boom.
How many randomly broken wires would be cause to remove a running wire rope from service -
CORRECT ANSWER 6
When lifting personnel in a manbasket using 6 x 19 wire rope, the minimum safety factor is? -
CORRECT ANSWER 7
What is the safety factor required when using non-rotating wire rope and lifting in a manbasket?
- CORRECT ANSWER 10
Who has the responsibility for determining the correct weight of a load? - CORRECT
ANSWER Supervisor
When working near powerlines when is a signal person required? - CORRECT
ANSWER When crane moves within booms length of powerlines.
