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

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In Alberta's tractor protection check, after disconnecting trailer lines, what should happen when you apply and hold the foot or hand valve?

A large continuous leak from the open service line is normal No air should leak from the open trailer service line The compressor should shut off permanently The yellow valve should refill the trailer from atmosphere

Correct Answer:

No air should leak from the open trailer service line

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