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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
Pumping of the brakes:
A
Can reduce air brake functionality
B
Ha no impact on air brake functionality
C
Is necessary to keep air brakes functional
D
Is recommended to keep air brakes functional
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