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General crane safety-122 Questions and Answers-100% Accurate.
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General crane safety-122 Questions and Answers-100% Accurate.
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General crane safety-122 Questions and Answers-100%Accurate.
The minimum crane team for a mobile crane on outriggers would consist of-
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A) The Crane Operator, Rigger Supervisor, and Crane Rigger
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B) The Crane Operator, Crane Supervisor, Rigger Supervisor, and
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Crane Rigger n
C) The Crane Operator, Crane Supervisor, and Crane Rigger
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D) The Crane Operator and Rigger-in-Charge
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E) The Crane Operator, Crane Walker, and Crane Rigger - answer-C) The Crane Operator,
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n Crane Supervisor, and Crane Rigger
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When operating floating cranes, you must start swinging or rotating quickly and stop
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n smoothly to prevent excessive barge list.
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A) True
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B) False - answer-B) False
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Extending a telescoping boom without lowering the hoist may result in "two-blocking" the
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n crane.
A) True
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B) False - answer-A) True
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All of the following require a license to operate EXCEPT a(n)-
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A) Cab-operated category 3 bridge crane
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B) Mobile hydraulic truck crane
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C) Non-cab operated category 3 bridge crane
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D) Articulating boom category 4 crane
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,E) Floor-operated category 2 bridge crane - answer-C) Non-cab operated category 3
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n bridge crane n
Which of the following lift types would NOT be considered a complex lift?
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A) Multiple-crane lifts
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B) Oxygen/Acetylene bottles in racks designed for lifting
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O C) Large geometric shapes
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D) Loads with multi-level attachment points
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E) Hazardous or explosive materials - answer-B) Oxygen/Acetylene bottles in racks
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n designed for lifting n n
What is the minimum amount of rope that shall be on a grooved drum and a smooth
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n drum?
A) There is no minimum
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B) 4 full wraps, 2 full wraps
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C) 2 full wraps, 3 full wraps
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D) 6 full wraps, 4 full wraps
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E) 1 full wrap, 2 full wraps - answer-B) 4 full wraps, 2 full wraps
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The horizontal distance from the center of rotation of the crane to the center of the hoist
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n line(s) with load applied is called
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A) Boom Length
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B) Radiusn
C) Lift Zone
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D) Quadrant
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E) Circumference - answer-B) Radius
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What is two-blocking, and why is two-blocking dangerous?
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A) Two-blocking occurs when the hook contacts another block or hook on the crane. It is
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n dangerous because the hook could damage the crane, causing loss of load control.
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B) Two-blocking occurs when the block or hook contacts the ground.
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,It is dangerous because the wire rope may come off of the drum and drop the block.
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C) Two-blocking occurs when the hook block comes in contact with the upper sheave
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n block during hoisting of the hook. It is dangerous because it could result in damage to the
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n crane, parting of the hoist lines, and dropping the load. - answer-C) Two-blocking occurs
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n when the hook block comes in contact with the upper sheave block during hoisting of the
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n hook. It is dangerous because it could result in damage to the crane, parting of the hoist
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n lines, and dropping the load.
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When should a tagline be used during lifting operations?
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A) when lifting a load over or near electrical transmission lines
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B) to prevent the load from swinging or rotating
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C) when the supervisor approves their use
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D) only when lifting the load to extreme heights - answer-B) to prevent the load from
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n swinging or rotating n n
What is the weight of a 24 square foot, 2 inch thick aluminum plate with a unit weight of
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n 15 lbs. per square foot of material per inch of thickness?
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A) 348 pounds
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B) 720 pounds
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C) 6,720 pounds
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D) 60 pounds
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E) 120 pounds - answer-B) 720 pounds
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The two expiration dates that are of particular importance to crane operators are-
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A) Vehicle registration expiration date
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B) Hydraulic oil expiration date
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C) CAC card expiration date
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D) The certification expiration date of the crane
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E) The crane operator's license expiration date - answer-D) The certification expiration
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n date of the cranen n n
E) The crane operator's license expiration date
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, Which of the following is NOT an acceptable method of communication between the signal
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n person and the crane operator?
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A) Signal Flags
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B) Direct Voice
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C) Hand Signals
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D) Sound-powered Phones
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E) Approved Radios - answer-A) Signal Flags
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What is a jib boom? n n n n
A) A boom that is attached to the main boom to allow rotation of the load
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B) An extension attached to the main boom used when lifting light loads to a higher
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n elevation than that permitted by the main boom
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C) A boom that is used to lift extremely heavy loads - answer-B) An extension attached to
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n the main boom used when lifting light loads to a higher elevation than that permitted by
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n the main boom
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If you find cracking or flaking paint on a welded joint of a structural component on the
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n boom, you should n n
A) Look closer to see if it is a crack.
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B) Report it immediately to your supervisor.
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C) Do nothing as it is not significant.
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D) Make a mental note to investigate it later.
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E) Note it on the ODCL, but do not report it. - answer-B) Report it immediately to your
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n supervisor.
While performing a pre-use check, the operator must check the wire rope system for all of
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n the following EXCEPT-
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A) Excessive corrosion
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B) Damage of any kind
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C) Size and grade of wire rope
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