Air Brake (Q Endorsement) Practice · Question
Why is it important to select a gear that allows you to control your speed without excessive braking on a downgrade, even if the road appears dry and clear?
The primary reason is to manage brake heat. Over-reliance on service brakes on a downgrade, regardless of road surface, leads to overheating and brake fade, whi
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Question: Why is it important to select a gear that allows you to control your speed without excessive braking on a downgrade, even if the road appears dry and clear?
Answer options: ✅ To prevent brake fade, which can occur regardless of road conditions.
- To conserve fuel during the descent.
- To prevent the engine from over-revving.
- To ensure the air compressor does not over-pressurize the system.
Correct answer: To prevent brake fade, which can occur regardless of road conditions.
Explanation: The primary reason is to manage brake heat. Over-reliance on service brakes on a downgrade, regardless of road surface, leads to overheating and brake fade, which is a major safety hazard.
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