Air Brake (Q Endorsement) Practice · Question
Scenario 39: The job of the air dryer is to:
The dryer protects valves and reservoirs from water and oil contamination, reducing corrosion and freeze-up. The correct answer is "Remove moisture and oil from
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Question: Scenario 39: The job of the air dryer is to:
Answer options:
- Cool the air ✅ Remove moisture and oil from the compressed air before it enters the reservoirs
- Pressurize the system
- Lubricate the compressor
Correct answer: Remove moisture and oil from the compressed air before it enters the reservoirs
Explanation: The dryer protects valves and reservoirs from water and oil contamination, reducing corrosion and freeze-up. The correct answer is "Remove moisture and oil from the compressed air before it enters the reservoirs". This capacity-fill scenario 39 reinforces the same competency for the airbrake bank and follows the certified explanation standard.
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