Alberta Air Brake (Q) Knowledge Test Practice Questions - Alberta Air Brake (Q Endorsement) Knowledge Test Exam - Variant 2

Before going down a hill, what brake-related check does Alberta's Commercial Driver's Guide recommend?

Disable the low-air warning Test the brakes, watch the air pressure gauge, and do not proceed if there is abnormal pressure loss Drain all reservoirs to zero Use only the trailer hand valve for the entire descent

Correct Answer:

Test the brakes, watch the air pressure gauge, and do not proceed if there is abnormal pressure loss

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