Mobile Crane Questions Test #7 Questions
With Complete Solutions
According to OSHA 1926.251, how much length
must there be between splices or end fittings on
regular lay cable slings. Correct Answers 10x's
the rope diameter
According to OSHA subpart cc when must you take
regular lay running rope out of service? Correct
Answers 2 broken wires in six diameters & 3
broken wires in one strand in one lay.
According to OSHA, which of the following is not
required for monthly crane inspections? Correct
Answers Checking the fluid in the differential.
All spreader bars and equalizer beams should be
tested to what ____________% of their rated
capacity? Correct Answers 125%.
An operator must obey a stop signal from: Correct
Answers From anyone.
Effective weight of stowed extension or jib: Correct
Answers Lower than the actual weight of the jib or
extension.
Figure the weight of a concrete block 6 inches thick
5 feet wide and 10 feet long.....Concrete weighs
, 150 lbs. per square foot. Correct Answers 3,750
lbs.
For a foot pedal in a conventional crane what is the
maximum amount of force you should have to
apply before it applies the latching mechanism?
Correct Answers 50 lbs.
Gross load is? Correct Answers The sum of
weights, attachments and rigging.
How close can you get to a 250 kv powerline
without a spotter? Correct Answers 20 ft.
How far shall the drum flange extend over the top
layer of rope Correct Answers Minimum of a ½
inch.
How long does your employer have to retain
monthly inspection documentation? Correct
Answers Three months.
How many days after a category 1 operational aid
is reported not working does the employer have to
fix the deficiency? Correct Answers 7 days.
If a jib is erected but not being used, it is treated as
a deduction from the cranes: Correct Answers
Gross capacity.
With Complete Solutions
According to OSHA 1926.251, how much length
must there be between splices or end fittings on
regular lay cable slings. Correct Answers 10x's
the rope diameter
According to OSHA subpart cc when must you take
regular lay running rope out of service? Correct
Answers 2 broken wires in six diameters & 3
broken wires in one strand in one lay.
According to OSHA, which of the following is not
required for monthly crane inspections? Correct
Answers Checking the fluid in the differential.
All spreader bars and equalizer beams should be
tested to what ____________% of their rated
capacity? Correct Answers 125%.
An operator must obey a stop signal from: Correct
Answers From anyone.
Effective weight of stowed extension or jib: Correct
Answers Lower than the actual weight of the jib or
extension.
Figure the weight of a concrete block 6 inches thick
5 feet wide and 10 feet long.....Concrete weighs
, 150 lbs. per square foot. Correct Answers 3,750
lbs.
For a foot pedal in a conventional crane what is the
maximum amount of force you should have to
apply before it applies the latching mechanism?
Correct Answers 50 lbs.
Gross load is? Correct Answers The sum of
weights, attachments and rigging.
How close can you get to a 250 kv powerline
without a spotter? Correct Answers 20 ft.
How far shall the drum flange extend over the top
layer of rope Correct Answers Minimum of a ½
inch.
How long does your employer have to retain
monthly inspection documentation? Correct
Answers Three months.
How many days after a category 1 operational aid
is reported not working does the employer have to
fix the deficiency? Correct Answers 7 days.
If a jib is erected but not being used, it is treated as
a deduction from the cranes: Correct Answers
Gross capacity.
