CDL GENERAL KNOWLEDGE TEST (AZ) - PRACTICE TEST

21. To maintain alertness while driving, you should:
have another person ride with you.
avoid heavy foods.
All of the above.
22. When conducting a pre-trip inspection:
the vehicle inspection report should not be reviewed unless your supervisor tells you to do so.
you should review the last vehicle inspection report.
the inspection report should only be reviewed if you will be carrying passengers.
23. You should downshift:
before starting up a hill and while going around a curve.
after starting down a hill and after entering a curve.
before entering a curve and before starting down a hill.
24. The one-way check valve:
keeps your wheels from locking up when you brake hard.
keeps air from going out if the air compressor develops a leak.
supplies air to the trailer air tanks.
25. You can determine if your vehicle is equipped with ABS (anti-lock braking system) by:
checking for a yellow ABS malfunction lamp on the instrument panel.
checking if your vehicle was manufactured after March 1, 1998.
All of the above.
26. Which of the following is NOT true about escape ramps?
Any driver who loses brakes going downhill should avoid using an escape ramp, if possible.
Escape ramps use a long bed of loose, soft material to slow runaway vehicles.
Escape ramps are found on many mountain downgrades.
27. If you are being tailgated, you should:
make quick changes.
open up room in front of you.
increase your speed very gradually.
28. When backing a trailer, you should:
avoid correcting the drift.
try to position your vehicle so you can back in a straight line.
turn the steering wheel in the direction you want to go.
29. Front-end header boards:
should never be used.
protect drivers from spilled cargo.
protect drivers from cargo in case of an accident or emergency stop.
30. Hydroplaning:
can occur only if there is a lot of water on the road.
is less likely if tire pressure is low.
can occur at speeds as low as 30 mph.
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