BC Class 2 Bus Practice Questions - British Columbia Class 2 Commercial Bus Driver's License Knowledge Test Exam

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During a pre-trip air brake check, what is the maximum allowable air pressure drop rate for a single bus with the engine off and service brakes fully applied?

1 psi per minute 2 psi per minute 3 psi per minute 4 psi per minute

Correct Answer:

3 psi per minute

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