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Air Brakes
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Doubles and Triples
Tanker Vehicles
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CDL Practice Test
General Knowledge
Air Brakes
Combination Vehicles
Doubles and Triples
Tanker Vehicles
Hazardous Materials
Transporting Passengers
CDL Air Brakes Practice Test
Question 1 of 3
What causes air brakes to fade?
A
Air leaks
B
All of these are correct
C
Low air tank pressure
D
Out of adjustment brakes
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