BC Air Brake Practice · Question
What is the recommended proper gear selection for descending a long, steep grade with a heavy commercial vehicle?
Selecting a low enough gear is crucial for controlling speed with engine braking, thereby minimizing reliance on the service brakes and preventing overheating.
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Question: What is the recommended proper gear selection for descending a long, steep grade with a heavy commercial vehicle?
Answer options: ✅ A gear low enough that you do not need to use the service brakes excessively.
- The highest gear possible to conserve fuel.
- Neutral to allow gravity to assist.
- A gear that allows you to maintain a speed of at least 80 km/h.
Correct answer: A gear low enough that you do not need to use the service brakes excessively.
Explanation: Selecting a low enough gear is crucial for controlling speed with engine braking, thereby minimizing reliance on the service brakes and preventing overheating.
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