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

Why are relay valves often mounted near rear brake chambers?

To reduce application and release lag by delivering and exhausting air close to the chambers To eliminate the need for reservoirs To replace the low-air warning device To inflate tires automatically

Correct Answer:

To reduce application and release lag by delivering and exhausting air close to the chambers

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