.png){kind=logo}
NCCCO Core Exam Outline Questions And Answers 100% Correct Latest Updated
Q: What materials should be used when setting up on soft surfaces like soft
ground, asphalt, or backfilled material?
A: Timber or steel.
Q: On crawler cranes, which boom position creates the greatest ground pressure?
A: Over the corner.
Q: What allows the weight of the crane and load to be distributed over a greater surface area and should be used under outrigger floats?
A: Blocking.
Q: Blocking should be at least how many times the surface area of the float?
A: 3.
Q: Overhead power lines must be considered to be in what condition until
electrical authorities indicate otherwise?
A: Energized.
Q: No part of the crane or load must ever enter this area around an energized
power line.
A: Prohibited zone.
Q: The prohibited zone must be enlarged as what increases?
A: kV (Voltage).
- / 2
Q: What minimum distance does OSHA require to be maintained when voltage up
to 350 kV is unknown?
A: 20 feet.
Q: What minimum distance is required if the voltage is over 350 kV and
unknown?
A: 50 feet.
Q: This person must be appointed any time the crane is working within a boom's
length of the prohibited zone.
A: Qualified signal person.
Q: The use of these should be avoided when lifting near power lines, but if
necessary, they should be non-conductive type.
A: Tag lines.
Q: What area should be avoided when operating cranes or handling materials near
power lines?
A: Above power lines.
Q: What should the operator do if the crane comes in contact with a power line?
A: Remain in the cab.
Q: If it is necessary to leave the crane cab before power lines are de-energized after contact, how should the operator exit the cab?
A: Jump.
Q: A crane can also become electrically charged when working close to these
types of towers.A: Transmission towers (radio, microwave, cell).
- / 2
.png)