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NCCCO Core Exam Outline Questions With 100% Correct Answers
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NCCCO Core Exam Outline Questions With 100% Correct Answers...
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NCCCO Core Exam Outline Questions With100% Correct Answers
These should be used when rigging-up on soft surfaces such as soft earth, asphalt or
backfilled material Answer Timber or steel
On crawler cranes, over what position of the boom is the greatest pressure imposed on
the ground - Answer Over the corner
Permits the crane and load weight to be spread over a larger area. Should always be
used under outrigger floats. Answer Blocking
The blocking should be at least times the surface area of the float - Answer 3
Overhead power lines must be considered to be in this condition until electrical
authorities indicate otherwise - Answer Energized
No part of the crane or load must ever enter this area around an energized power line -
Answer Prohibited zone
The prohibited zone must be enlarged as this increases - Answer kV
What minimum distance does OSHA require be maintained when voltage up to 350 kV is
unknown - Answer 20 foot
What minimum distance is required if the voltage is over 350 kV and unknown - Answer
50 foot
, This person must be appointed any time the crane is working within a boom's length of
the prohibited zone - Answer Qualified signal person
These should be avoided on lifting near power lines, however if necessary it should be
non-conductive type - Answer Tag lines
Avoid operating cranes or manipulating materials over this area of power lines - Answer
Above power lines
If the crane come into contact with a power line what does the operator do? - Answer
Remain in the cab
If for some reason it is necessary to leave the crane cab and power lines have not been
de-energized after contact, how does the operator exit the cab - Answer Jump
A crane can also become electrically charged when working close to these (radio,
microwave, cell) - Answer transmission towers
Before traveling on site with a load, be sure that this is allowed by the - Answer
Manufacturer
Ensure the boom is low enough when traveling with a load to avoid the possibility of this
- Answer Backward collapse
Always travel in this direction when traveling with a load - Answer Toward the load
Most manufacturers do not permit travel with a load when the boom is in these settings -
Answer Boom extension, jib, or pinned section
Before traveling down an incline, to prevent a lattice boom crane from tipping forward,
the boom should be in this position - Answer Raised
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