Timber or steel - CORRECT ANSWER-These materials should be used when setting up on soft surfaces such as soft ground, asphalt or backfilled material
Over the corner - CORRECT ANSWER-On crawler cranes, which boom position creates the greatest ground pressure
Blocking - CORRECT ANSWER-Allows th...
Timber or steel - CORRECT ANSWER-These materials should be used when setting up
on soft surfaces such as soft ground, asphalt or backfilled material
Over the corner - CORRECT ANSWER-On crawler cranes, which boom position
creates the greatest ground pressure
Blocking - CORRECT ANSWER-Allows the weight of the crane and load to be
distributed over a greater surface area. Should be used under outrigger floats at all
times.
3 - CORRECT ANSWER-Blocking should be at least how many times the surface area
of the float
Energized - CORRECT ANSWER-Overhead power lines must be considered to be in
this condition until electrical authorities indicate otherwise
Prohibited zone - CORRECT ANSWER-No part of the crane or load must ever enter
this area around an energized power line
kV - CORRECT ANSWER-The prohibited zone must be enlarged as this increases
20 foot - CORRECT ANSWER-What minimum distance does OSHA require be
maintained when voltage up to 350 kV is unknown
, 50 foot - CORRECT ANSWER-What minimum distance is required if the voltage is over
350 kV and unknown
Qualified signal person - CORRECT ANSWER-This person must be appointed any time
the crane is working within a boom's length of the prohibited zone
Tag lines - CORRECT ANSWER-The use of these should be avoided when lifting near
power lines, however if necessary should be non-conductive type
Above power lines - CORRECT ANSWER-Avoid operating cranes or handling materials
in this area of power lines
Remain in the cab - CORRECT ANSWER-What does an operator do if the crane comes
in contact with a power line
Jump - CORRECT ANSWER-If it is necessary to leave the crane cab before power
lines are de-energized after contact, how does the operator exit the cab
transmission towers - CORRECT ANSWER-A crane can also become electrically
charged when working close to these (radio, microwave, cell)
Manufacturer - CORRECT ANSWER-Before traveling on site with a load, be sure that
this is allowed by the
Backward collapse - CORRECT ANSWER-Ensure the boom low enough when traveling
with a load to avoid the possibility of this
Toward the load - CORRECT ANSWER-Always travel in this direction when traveling
with a load
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