General crane safety-122 Questions and Answers-100% Accurate.

General crane safety-122 Questions
and Answers-100% Accurate.

1. The minimumcrane teamfor a mobile crane on outriggers wouldconsist of-
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A) The Crane Operator,Rigger Supervisor,and Crane Rigger
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B) TheCraneOperator,Crane Supervisor,Rigger Supervisor,and
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Crane Rigger
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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) TheCraneOperator,CraneWalker,andCraneRigger ANS: C)TheCraneOperator,
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Crane Supervisor, and Crane Rigger
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2. Whenoperatingfloatingcranes,youmuststartswingingorrotatingquickly and
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stop smoothly to prevent excessive barge list.
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A) True
B) False ANS:B) False n n n




3. Extending a telescoping boom without lowering the hoist may result in
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"two-blocking" the crane.
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A) True
B) False ANS:A)True n n n




4. All of the following require a license to operate EXCEPT a(n)-
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A) Cab-operated category 3 bridge crane n n n n





n n

,B) Mobile hydraulic truck crane n n n




C) Non-cab operated category 3 bridge crane n n n n n




D) Articulating boom category 4 crane n n n n




E) Floor-operated category 2 bridge crane ANS:C) Non-cab operated category n n n n n n n n n




3 bridge crane
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5. Which of the following lift types would NOT be considered a complex lift?
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A) Multiple-crane lifts n




B) Oxygen/Acetylene bottles in racks designed for lifting O n n n n n n n




C) Large geometric shapes
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D) Loads with multi-level attachment points n n n n




E) Hazardous or explosive materials ANS:B) Oxygen/Acetylene bottles in racks n n n n n n n n n




de- signed for lifting
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6. What is the minimum amount of rope that shall be on a grooved drum and a
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smooth drum?
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A) There is no minimum n n n




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 ANS:B) 4 full wraps, 2 full wraps
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7. Thehorizontaldistancefromthecenterofrotationofthecranetothecenter of the
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hoist line(s) with load applied is called
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n n

,A) Boom Length n




B) Radius
C) Lift Zone n




D) Quadrant
E) Circumference ANS:B) Radius n n n




8. 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 n n n n n n n n n n n




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




It is dangerous because the wire rope may come off of the drum and drop the block.
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C) Two-blockingoccurswhenthehookblockcomesincontactwiththeupper n n n n n n n n n n n




sheave block during hoisting of the hook. It is dangerous because it could result
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in damage to the crane, parting of the hoist lines, and dropping the load. ANS:C)
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Two-blockingoccurswhenthehookblockcomesincontactwiththeupper sheave block
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during hoisting of the hook.It is dangerous because it could result in damage to the
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crane, parting of the hoist lines, and dropping the load.
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9. 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 n n n n n




D) only when lifting the load to extreme heights ANS:B) to prevent the load from
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swinging or rotating
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10. What is the weight of a 24 square foot,2 inch thick aluminum plate with a unit
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weight of 15 lbs. per square foot of material per inch of thickness?
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A) 348 pounds n




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, B) 720 pounds n




C) 6,720 pounds n




D) 60 pounds
n




E) 120 pounds ANS: B) 720 pounds
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11. The two expiration dates that are of particular importance to crane opera- tors
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are-
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A) Vehicle registration expiration date
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B) Hydraulic oil expiration date n n n




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 ANS: D)The certification expiration
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