Mobile Crane Questions Test #5 With
Correct Answers
What action does a signal person intend the operator to perform if he
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extends his arm at shoulder height, makes a fist with his hand, and
| | | | | | | | | | | | |
sticks his thumb up? - CORRECT ANSWER✔✔-Boom up.
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According to ASME B30.5 mobile crane standard, how many randomly
| | | | | | | | | |
distributed broken wires, maximum, in rotation-resistant rope is cause
| | | | | | | | |
for replacement of the rope? - CORRECT ANSWER✔✔-2 broken wires in
| | | | | | | | | | |
6 rope diameters.
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Within what percentage of level does a telescopic boom crane have to
| | | | | | | | | | | |
be for the gross ratings in the load chart to remain valid? - CORRECT
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ANSWER✔✔-1%.
According to the B30.5 mobile crane standard, it's OK for an operator to
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leave the cab of a crane with the engine running so long as: - CORRECT
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ANSWER✔✔-The operator keeps the crane in view and restricts access | | | | | | | | | |
to the area around the crane.
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If a bold line is shown on a load chart, the capacities below the line: -
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CORRECT ANSWER✔✔-Are based on the stability of the crane.
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, On duty cycle operations, such as skipping concrete, most
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manufacturers require a crane's load chart capacity to be reduced by: - | | | | | | | | | | | |
CORRECT ANSWER✔✔-20%. |
A truck crane is set up on outriggers. The part of the load chart
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governed by stability is based on what percentage of the crane's
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capacity? - CORRECT ANSWER✔✔-85%. | | |
What is the OSHA regulation governing cranes in construction? -
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CORRECT ANSWER✔✔-1926.1400. |
A crane is set up with 3 of its 4 outriggers fully extended and the fourth
| | | | | | | | | | | | | | | |
retracted. The capacity of the crane in this configuration will be found in
| | | | | | | | | | | |
the: - CORRECT ANSWER✔✔-On-rubber chart or lowest applicable load
| | | | | | | | | |
chart.
When lifting personnel, the total weight of the loaded personnel
| | | | | | | | | |
platform must not exceed what percentage of the rated capacity of the
| | | | | | | | | | | |
crane? - CORRECT ANSWER✔✔-50%. | | |
The tipping axis of a crawler crane: - CORRECT ANSWER✔✔-Depends if
| | | | | | | | | | |
the idler or sprocket are in line or offset from the track rollers.
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Correct Answers
What action does a signal person intend the operator to perform if he
| | | | | | | | | | | | |
extends his arm at shoulder height, makes a fist with his hand, and
| | | | | | | | | | | | |
sticks his thumb up? - CORRECT ANSWER✔✔-Boom up.
| | | | | | |
According to ASME B30.5 mobile crane standard, how many randomly
| | | | | | | | | |
distributed broken wires, maximum, in rotation-resistant rope is cause
| | | | | | | | |
for replacement of the rope? - CORRECT ANSWER✔✔-2 broken wires in
| | | | | | | | | | |
6 rope diameters.
| |
Within what percentage of level does a telescopic boom crane have to
| | | | | | | | | | | |
be for the gross ratings in the load chart to remain valid? - CORRECT
| | | | | | | | | | | | | |
ANSWER✔✔-1%.
According to the B30.5 mobile crane standard, it's OK for an operator to
| | | | | | | | | | | | |
leave the cab of a crane with the engine running so long as: - CORRECT
| | | | | | | | | | | | | | |
ANSWER✔✔-The operator keeps the crane in view and restricts access | | | | | | | | | |
to the area around the crane.
| | | | |
If a bold line is shown on a load chart, the capacities below the line: -
| | | | | | | | | | | | | | | |
CORRECT ANSWER✔✔-Are based on the stability of the crane.
| | | | | | | |
, On duty cycle operations, such as skipping concrete, most
| | | | | | | | |
manufacturers require a crane's load chart capacity to be reduced by: - | | | | | | | | | | | |
CORRECT ANSWER✔✔-20%. |
A truck crane is set up on outriggers. The part of the load chart
| | | | | | | | | | | | | |
governed by stability is based on what percentage of the crane's
| | | | | | | | | | |
capacity? - CORRECT ANSWER✔✔-85%. | | |
What is the OSHA regulation governing cranes in construction? -
| | | | | | | | | |
CORRECT ANSWER✔✔-1926.1400. |
A crane is set up with 3 of its 4 outriggers fully extended and the fourth
| | | | | | | | | | | | | | | |
retracted. The capacity of the crane in this configuration will be found in
| | | | | | | | | | | |
the: - CORRECT ANSWER✔✔-On-rubber chart or lowest applicable load
| | | | | | | | | |
chart.
When lifting personnel, the total weight of the loaded personnel
| | | | | | | | | |
platform must not exceed what percentage of the rated capacity of the
| | | | | | | | | | | |
crane? - CORRECT ANSWER✔✔-50%. | | |
The tipping axis of a crawler crane: - CORRECT ANSWER✔✔-Depends if
| | | | | | | | | | |
the idler or sprocket are in line or offset from the track rollers.
| | | | | | | | | | | |
