Air Brake (Q Endorsement) Practice · Question
During a pre-trip inspection, what is the maximum acceptable air loss rate for a single vehicle (straight truck or bus) with the engine off and brakes applied?
According to Canadian air brake pre-trip inspection standards, the air loss rate for a single vehicle should not exceed 7 psi in one minute when the engine is o
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Question: During a pre-trip inspection, what is the maximum acceptable air loss rate for a single vehicle (straight truck or bus) with the engine off and brakes applied?
Answer options:
- Not more than 5 psi in one minute.
- Not more than 3 psi in one minute. ✅ Not more than 7 psi in one minute.
- Not more than 2 psi in one minute.
Correct answer: Not more than 7 psi in one minute.
Explanation: According to Canadian air brake pre-trip inspection standards, the air loss rate for a single vehicle should not exceed 7 psi in one minute when the engine is off and the service brakes are fully applied.
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