Arizona CDL Air Brakes: Practice Test - Practice Test 1
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A wig wag is:
A.
A low pressure warning device.
B.
A tube that carries air to the brakes.
C.
A type of air brake system.
What can happen if the air pressure gets too low in an air brake system?
A.
The brakes may squeak.
B.
The brakes may stop working.
C.
The brakes may be sluggish.
The leakage rate for a single vehicle with air brakes should be no more than ____ in one minute during a static leakage test.
A.
1 psi
B.
2 psi
C.
3 psi
Which of the following is not part of a vehicle's air brake system?
A.
Air gauges
B.
Low pressure warning device
C.
Air filter
Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
A.
Green
B.
Blue
C.
Yellow
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