General crane safety Exam Questions And Answers Solved 100 Correct
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NU1426
General crane safety Exam Questions And Answers Solved 100% Correct.
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 Op...
General crane safety Exam Questions And
Answers Solved 100% Correct.
1). 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
Ans: C) The Crane Operator, Crane Supervisor, and Crane Rigger
2). When operating floating cranes, you must start swinging or rotating quickly and stop
smoothly to prevent excessive barge list.
a) true
b) false
Ans: B) False
3). Extending a telescoping boom without lowering the hoist may result in "two-blocking" the
crane.
a) true
b) false
Ans: A) True
4). 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
Ans: C) Non-cab operated category 3 bridge crane
5). 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
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, o c) large geometric shapes
d) loads with multi-level attachment points
e) hazardous or explosive materials
Ans: B) Oxygen/Acetylene bottles in racks designed for lifting
6). 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
Ans: B) 4 full wraps, 2 full wraps
7). 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
Ans: B) Radius
8). 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.
Ans: 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.
9). 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
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, c) when the supervisor approves their use
d) only when lifting the load to extreme heights
Ans: B) to prevent the load from swinging or rotating
10). 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
Ans: B) 720 pounds
11). 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
Ans: D) The certification expiration date of the crane
E) The crane operator's license expiration date
12). 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
Ans: A) Signal Flags
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