Air Brake (Q Endorsement) Practice · Question
Scenario 167: During the 7-step air-brake inspection, you check the warning device starts at:
With engine off and foot brake fanned, the low-air warning must come on no later than 55 psi. The correct answer is "55 psi". This capacity-fill scenario 167 re
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Question: Scenario 167: During the 7-step air-brake inspection, you check the warning device starts at:
Answer options:
- 35 psi ✅ 55 psi
- 75 psi
- 100 psi
Correct answer: 55 psi
Explanation: With engine off and foot brake fanned, the low-air warning must come on no later than 55 psi. The correct answer is "55 psi". This capacity-fill scenario 167 reinforces the same competency for the airbrake bank and follows the certified explanation standard.
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