Mobile Crane Questions Test #1 Exam
Questions and Answers
Where is the best location for leveling a crane? - Answer-Upperworks.
When determining the gross load the best method is? - Answer-Get an accurate load
weight and add the rigging.
By order of hitch strength, which is the correct answer? - Answer-Basket, vertical,
choker.
What is the primary purpose of using a jib? - Answer-Increase height.
When taking a side strain on a boom, what concerns the operator most? - Answer-
Boom damage.
You should always have how many wraps on a hoist drum? - Answer-2.
On a load chart, values above the load line mean: - Answer-Capacities based on
structural competence.
The primary purpose for a rooster sheave or auxiliary boom point sheave is to: -
Answer-Separate the hoist lines.
What is the proper procedure when using an insulating link or a boot near power lines? -
Answer-Be sure to maintain the correct allowable distance from the lines.
When the number of layers of rope on a drum increases the:: - Answer-Allowable line
pull increases.
What is the minimum allowable distance from the crane and power-lines up to 50kV? -
Answer-10 ft.
The term "Upperworks" or "Superstructure" refers to the area of the crane: - Answer-
Above the turntable.
Side-loading may be caused by: - Answer-Starting or stopping the swing too rapidly.
What is the best procedure to follow when underground utilities may be present? -
Answer-Contact local utility company.
Eccentric main boom tip reeving causes: - Answer-Twisting of the boom.
Questions and Answers
Where is the best location for leveling a crane? - Answer-Upperworks.
When determining the gross load the best method is? - Answer-Get an accurate load
weight and add the rigging.
By order of hitch strength, which is the correct answer? - Answer-Basket, vertical,
choker.
What is the primary purpose of using a jib? - Answer-Increase height.
When taking a side strain on a boom, what concerns the operator most? - Answer-
Boom damage.
You should always have how many wraps on a hoist drum? - Answer-2.
On a load chart, values above the load line mean: - Answer-Capacities based on
structural competence.
The primary purpose for a rooster sheave or auxiliary boom point sheave is to: -
Answer-Separate the hoist lines.
What is the proper procedure when using an insulating link or a boot near power lines? -
Answer-Be sure to maintain the correct allowable distance from the lines.
When the number of layers of rope on a drum increases the:: - Answer-Allowable line
pull increases.
What is the minimum allowable distance from the crane and power-lines up to 50kV? -
Answer-10 ft.
The term "Upperworks" or "Superstructure" refers to the area of the crane: - Answer-
Above the turntable.
Side-loading may be caused by: - Answer-Starting or stopping the swing too rapidly.
What is the best procedure to follow when underground utilities may be present? -
Answer-Contact local utility company.
Eccentric main boom tip reeving causes: - Answer-Twisting of the boom.
