NCCCO Core Exam Outline Study Guide
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)
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)
