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Correct Answer
The offset of the jib has been changed from 25 degree to 15 degree. The
capacity of the jib will?
A. Stay the same
B. Decrease
C. Offset can't change
D. Increase - 🧠 ANSWER ✔✔D. Increase
When lifting near capacity with a crawler, the lowest ground pressure
between center pin and the load will be?
,A. Over the front
B. Over the corner
C. Over the side
D. Over the rear - 🧠 ANSWER ✔✔C. Over the side
A Truck mounted crane will generally have a higher capacity over which
quadrant?
A. Capacity is the same 360 degrees
B. Over the rear
C. Capacity is higher over the side
D. Over the front - 🧠 ANSWER ✔✔B. Over the rear
When lifting from main boom with a 60' jib attached, a deduction must be
made for?
A. Stowed jib
,B. Fixed jib
C. Erected jib
D. Stored jib - 🧠 ANSWER ✔✔C. Erected jib
During Tandem lifts, neither crane should be loaded more than?
A. 50%
B. 65%
C. 75%
D. 80% - 🧠 ANSWER ✔✔C. 75%
A chocker has a vertical hitch capacity of 6,000 lbs with a 5:1 safety factor.
The actual capacity is?
A. 30,000 lbs
B. 11,000 lbs
C. 3,000 lbs
D. 6,000 lbs - 🧠 ANSWER ✔✔D. 6,000 lbs
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, Mobile cranes are generally required to be level within?
A. 1 degree
B. 1%
C. 1'
D. 1" - 🧠 ANSWER ✔✔B. 1%
A power line is rated 330kv, the closest a crane with 150' boom can get
without a spotter is?
A. 200'
B. 20'
C. 170'
D. 50' - 🧠 ANSWER ✔✔C. 170'
ASME recommends, when hoisting personnel, line speeds of
A. No more than 100 f/m