BC Class 2 Practice Test · Question
The 'low air pressure warning' on a bus must activate before pressure drops below:
Most jurisdictions require the low-air warning to activate before pressure drops below approximately 55 psi.
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Question: The 'low air pressure warning' on a bus must activate before pressure drops below:
Answer options:
- 35 psi ✅ 55 psi
- 65 psi
- 85 psi
Correct answer: 55 psi
Explanation: Most jurisdictions require the low-air warning to activate before pressure drops below approximately 55 psi.
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