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

Why does Alberta warn drivers not to pump air brakes on a long downhill grade?

Pumping permanently increases governor cut-out Pumping turns off ABS forever Pumping can deplete air pressure so there may not be enough air for the brakes to work properly Pumping cools the drums too much

Correct Answer:

Pumping can deplete air pressure so there may not be enough air for the brakes to work properly

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