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

Why should a driver monitor both primary and secondary gauges on a dual system?

Only one gauge is ever accurate Gauges replace the need for a low-air warning Gauges measure only tire pressure A failure may affect one circuit first, and both need adequate pressure before driving

Correct Answer:

A failure may affect one circuit first, and both need adequate pressure before driving

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