Air Brake (Q Endorsement) Practice · Question
When testing the air governor cut-out pressure, what should the air pressure gauge show before the compressor stops pumping air?
The air governor cut-out pressure, at which the air compressor stops pumping air, should typically be between 724 kPa (105 psi) and 862 kPa (125 psi) to maintai
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Question: When testing the air governor cut-out pressure, what should the air pressure gauge show before the compressor stops pumping air?
Answer options: ✅ Between 724 kPa (105 psi) and 862 kPa (125 psi).
- Exactly 689 kPa (100 psi).
- Between 552 kPa (80 psi) and 620 kPa (90 psi).
- Above 965 kPa (140 psi).
Correct answer: Between 724 kPa (105 psi) and 862 kPa (125 psi).
Explanation: The air governor cut-out pressure, at which the air compressor stops pumping air, should typically be between 724 kPa (105 psi) and 862 kPa (125 psi) to maintain the system's optimal operating pressure.
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