NC CDL DOUBLES TRIPLES TEST - PRACTICE TEST

11. The center of gravity of a trailer should be:
as high as possible.
at the rear of the trailer.
at the front of the trailer.
as low as possible.
12. Which of the following is a reason to cover cargo?
To protect the cargo from weather
To contain a spill
To protect people from spilled cargo
All of the above.
13. Under a pressurized system, the radiator cap:
should never be hot.
should always be cool.
should never be removed until the system has cooled.
should be removed when the coolant is hot.
14. Combination vehicles have __ air lines.
1
4
3
2
15. The ABS malfunction lamp on the instrument panel is:
Red
Yellow
Orange
Blue
16. A red triangle with an orange center means:
Liquid tanker
Slow-moving vehicle
Law enforcement vehicle
The vehicle is hauling hazardous materials
17. With an engine fire, you should NOT:
open the hood.
turn the engine off as soon as possible.
shoot foam from the vehicle’s underside.
None of the above.
18. It's very important to distribute the cargo so it is:
piled up.
as low as possible.
in the centre of the load.
as high up as possible.
19. To avoid becoming an aggressive driver you should:
make gestures to other drivers.
give other drivers the benefit of the doubt.
speed up if you think you’re going to be late.
give other drivers your full attention.
20. The heavier the vehicle:
the more work the brakes must do to stop it.
the less work the brakes must do to stop it.
the higher the center of gravity will be.
None of the above.
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