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General crane safety Question and answers 100% correct 2023/2024
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General crane safety Question and answers 100% correct 2023/2024 The minimum crane team for a mobile crane on outriggers would consist of- A) The Crane Operator, Rigger Supervisor, and Crane Rigger B) The Crane Operator, Crane Supervisor, Rigger Supervisor, and Crane Rigger C) The Crane Opera...

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  • December 2, 2023
  • 31
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • CRANE SAFETY
  • CRANE SAFETY

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General crane safety

The minimum crane team for a mobile crane on outriggers would consist of-

A) The Crane Operator, Rigger Supervisor, and Crane Rigger

B) The Crane Operator, Crane Supervisor, Rigger Supervisor, and

Crane Rigger

C) The Crane Operator, Crane Supervisor, and Crane Rigger

D) The Crane Operator and Rigger-in-Charge

E) The Crane Operator, Crane Walker, and Crane Rigger - correct answer C) The Crane Operator, Crane
Supervisor, and Crane Rigger



When operating floating cranes, you must start swinging or rotating quickly and stop smoothly to
prevent excessive barge list.

A) True

B) False - correct answer B) False



Extending a telescoping boom without lowering the hoist may result in "two-blocking" the crane.

A) True

B) False - correct answer A) True



All of the following require a license to operate EXCEPT a(n)-

A) Cab-operated category 3 bridge crane

B) Mobile hydraulic truck crane

C) Non-cab operated category 3 bridge crane

D) Articulating boom category 4 crane

E) Floor-operated category 2 bridge crane - correct answer C) Non-cab operated category 3 bridge crane



Which of the following lift types would NOT be considered a complex lift?

,A) Multiple-crane lifts

B) Oxygen/Acetylene bottles in racks designed for lifting

O C) Large geometric shapes

D) Loads with multi-level attachment points

E) Hazardous or explosive materials - correct answer B) Oxygen/Acetylene bottles in racks designed for
lifting



What is the minimum amount of rope that shall be on a grooved drum and a smooth drum?

A) There is no minimum

B) 4 full wraps, 2 full wraps

C) 2 full wraps, 3 full wraps

D) 6 full wraps, 4 full wraps

E) 1 full wrap, 2 full wraps - correct answer B) 4 full wraps, 2 full wraps



The horizontal distance from the center of rotation of the crane to the center of the hoist line(s) with
load applied is called

A) Boom Length

B) Radius

C) Lift Zone

D) Quadrant

E) Circumference - correct answer B) Radius



What is two-blocking, and why is two-blocking dangerous?

A) Two-blocking occurs when the hook contacts another block or hook on the crane. It is dangerous
because the hook could damage the crane, causing loss of load control.

B) Two-blocking occurs when the block or hook contacts the ground.

It is dangerous because the wire rope may come off of the drum and drop the block.

C) Two-blocking occurs when the hook block comes in contact with the upper sheave block during
hoisting of the hook. It is dangerous because it could result in damage to the crane, parting of the hoist
lines, and dropping the load. - correct answer C) Two-blocking occurs when the hook block comes in

,contact with the upper sheave block during hoisting of the hook. It is dangerous because it could result
in damage to the crane, parting of the hoist lines, and dropping the load.



When should a tagline be used during lifting operations?

A) when lifting a load over or near electrical transmission lines

B) to prevent the load from swinging or rotating

C) when the supervisor approves their use

D) only when lifting the load to extreme heights - correct answer B) to prevent the load from swinging or
rotating



What is the weight of a 24 square foot, 2 inch thick aluminum plate with a unit weight of 15 lbs. per
square foot of material per inch of thickness?

A) 348 pounds

B) 720 pounds

C) 6,720 pounds

D) 60 pounds

E) 120 pounds - correct answer B) 720 pounds



The two expiration dates that are of particular importance to crane operators are-

A) Vehicle registration expiration date

B) Hydraulic oil expiration date

C) CAC card expiration date

D) The certification expiration date of the crane

E) The crane operator's license expiration date - correct answer D) The certification expiration date of the
crane

E) The crane operator's license expiration date



Which of the following is NOT an acceptable method of communication between the signal person and
the crane operator?

A) Signal Flags

, B) Direct Voice

C) Hand Signals

D) Sound-powered Phones

E) Approved Radios - correct answer A) Signal Flags



What is a jib boom?

A) A boom that is attached to the main boom to allow rotation of the load

B) An extension attached to the main boom used when lifting light loads to a higher elevation than that
permitted by the main boom

C) A boom that is used to lift extremely heavy loads - correct answer B) An extension attached to the
main boom used when lifting light loads to a higher elevation than that permitted by the main boom



If you find cracking or flaking paint on a welded joint of a structural component on the boom, you should

A) Look closer to see if it is a crack.

B) Report it immediately to your supervisor.

C) Do nothing as it is not significant.

D) Make a mental note to investigate it later.

E) Note it on the ODCL, but do not report it. - correct answer B) Report it immediately to your supervisor.



While performing a pre-use check, the operator must check the wire rope system for all of the following
EXCEPT-

A) Excessive corrosion

B) Damage of any kind

C) Size and grade of wire rope

D) Proper sheave movement

E) Proper spooling on the drum - correct answer C) Size and grade of wire rope



All of the following are principle parts of an overhead traveling crane EXCEPT-

A) Operator's cab or pendant control

B) End trucks

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