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Oregon CDL Practice Test: Air Brakes - Test 2024

Instruction: To obtain this endorsement required to drive a vehicle with air brakes, applicants must pass a 20-question test. And to pass the test, applicants must score at least 80%. Test questions are from the OR CDL Handbook. The Air Brakes endorsement can be used with the Class A, B, or C CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Oregon DMV locations.

3. If the vehicle has air brakes, the air compressor drive belt should be checked before each drive. In what condition should the belt be in?
A
Loose
B
Cracked
C
Tight
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