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OR CDL PRACTICE TEST - GENERAL KNOWLEDGE

11. How should you hold the steering wheel?
Firmly, with your left hand at the top of the wheel and the right hand at the bottom of the wheel
With your right hand on the wheel
With your left hand on the wheel
Firmly, with your hands on opposite sides of the wheel
12. You must have at least ________ tread depth on tires other than front tires.
2/32 inch
4/16 inch
4/32 inch
8/32 inch
13. Glad hands are:
electronic devices.
coupling devices.
warning devices.
securement devices.
14. Most heavy-duty vehicles use:
pump-the-brake systems.
dual air brake systems.
single air brake systems.
triple air brake systems.
15. You should NOT use the parking brakes if:
the brakes are too dry.
the brakes are cold.
the brakes are very hot.
All of the above.
16. Which of these is a possible consequence of forcing an automatic transmission into a lower gear at high speed?
Loss of all engine braking effect
Loss of hydraulic pressure
Loss of steering control
All of the above.
17. On engine start, you should:
make sure the oil pressure gauge is working.
check that the master cylinder is securely attached and not leaking.
check the oil level.
check for minimum tread depth.
18. One way to prevent hydroplaning is to:
make sure you have enough tread on your tires.
use the controlled braking method.
take curves at higher speeds.
have less than 4/32 inch tread depth in every major groove on front tires.
19. Which of the following statements about over-the-counter drugs is true?
They are perfectly safe and legal.
They are not considered drugs.
They can be used while on duty, as long as you drink coffee to stay awake.
They may affect safe driving ability.
20. A high center of gravity means:
a rollover is less likely.
the spring brakes will come fully on.
you are more likely to tip over.
you'll have better traction.
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