BC Air Brake Practice · Question
What is the typical 'cut-in' pressure for the air compressor governor in a heavy commercial vehicle?
The compressor 'cuts in' (starts compressing air) when the system pressure drops to approximately 85 psi, ensuring that the air supply is replenished when neede
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Question: What is the typical 'cut-in' pressure for the air compressor governor in a heavy commercial vehicle?
Answer options: ✅ Approximately 85 psi.
- Approximately 125 psi.
- Approximately 60 psi.
- Approximately 100 psi.
Correct answer: Approximately 85 psi.
Explanation: The compressor 'cuts in' (starts compressing air) when the system pressure drops to approximately 85 psi, ensuring that the air supply is replenished when needed.
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