Air Brake (Q Endorsement) Practice · Question
What is the main function of the air dryer in an air brake system?
The air dryer removes water vapour, oil, and other contaminants from the compressed air before it enters the air tanks, preventing corrosion and freezing within
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Question: What is the main function of the air dryer in an air brake system?
Answer options: ✅ To remove moisture and contaminants from the compressed air.
- To lubricate the air compressor.
- To regulate air pressure in the supply tank.
- To prevent air from freezing in the brake lines.
Correct answer: To remove moisture and contaminants from the compressed air.
Explanation: The air dryer removes water vapour, oil, and other contaminants from the compressed air before it enters the air tanks, preventing corrosion and freezing within the system.
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