Air Brake (Q Endorsement) Practice · Question
Scenario 163: The governor controls:
The governor switches the compressor between loaded (pumping) and unloaded modes at preset cut-in/cut-out pressures. The correct answer is "When the compressor
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Question: Scenario 163: The governor controls:
Answer options:
- Engine speed ✅ When the compressor pumps air into the system (cut-in / cut-out pressures)
- Brake balance
- Wheel speed
Correct answer: When the compressor pumps air into the system (cut-in / cut-out pressures)
Explanation: The governor switches the compressor between loaded (pumping) and unloaded modes at preset cut-in/cut-out pressures. The correct answer is "When the compressor pumps air into the system (cut-in / cut-out pressures)". This capacity-fill scenario 163 reinforces the same competency for the airbrake bank and follows the certified explanation standard.
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