Air Brake (Q Endorsement) Practice · Question
Scenario 223: Brake fade is most likely caused by:
Overheated drums and linings lose friction (brake fade); use engine/retarder braking and the correct lower gear on long descents. The correct answer is "Continu
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Question: Scenario 223: Brake fade is most likely caused by:
Answer options:
- Cold brakes ✅ Continuous heavy use of service brakes on long downgrades, overheating drums and linings
- Fresh slack adjusters
- High oil pressure
Correct answer: Continuous heavy use of service brakes on long downgrades, overheating drums and linings
Explanation: Overheated drums and linings lose friction (brake fade); use engine/retarder braking and the correct lower gear on long descents. The correct answer is "Continuous heavy use of service brakes on long downgrades, overheating drums and linings". This capacity-fill scenario 223 reinforces the same competency for the airbrake bank and follows the certified explanation standard.
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