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

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


1. Theminimumcraneteamforamobilecraneonoutriggerswouldconsistof-
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A) The Crane Operator,Rigger Supervisor,and Crane Rigger
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B) TheCraneOperator,CraneSupervisor,RiggerSupervisor,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 ji ji ji




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 ji ji ji




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




1/45
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,B) Mobile hydraulic truck crane ji ji ji




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




D) Articulating boom category 4 crane ji ji ji ji




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




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 ji




B) Oxygen/Acetylene bottles in racks designedforlifting O ji ji ji ji ji ji ji




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




E) Hazardous or explosive materials ANS:B)Oxygen/Acetylenebottlesinracks ji ji ji ji ji ji ji ji ji




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 ji ji ji




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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2/45
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,A) Boom Length ji




B) Radius
C) Lift Zone ji




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




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 ji ji ji ji ji ji ji ji ji ji ji




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. ji ji ji ji ji ji ji ji ji




Itis dangerousbecause thewire rope maycome offofthedrumanddropthe block.
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C) Two-blockingoccurswhenthehookblockcomesincontactwiththeupper ji ji ji ji ji ji ji ji ji ji ji




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 ji ji ji ji ji




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 ji





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, B) 720 pounds ji




C) 6,720 pounds ji




D) 60 pounds
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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) Vehicleregistrationexpiration dateji ji ji




B) Hydraulic oil expiration date ji ji ji




C) CACcardexpirationdate ji ji ji




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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