BC Class 2 Practice Test · Question
When driving a Class 2 bus down a long, steep mountain grade, what is the most effective technique to control your speed and prevent brake fade?
On a long, steep descent, using a lower gear allows the engine to help control the vehicle's speed through engine braking, reducing the reliance on the service
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Question: When driving a Class 2 bus down a long, steep mountain grade, what is the most effective technique to control your speed and prevent brake fade?
Answer options: ✅ Shift to a lower gear and use engine braking.
- Apply continuous light pressure to the service brakes.
- Apply the parking brake intermittently to slow down.
- Pump the service brakes rapidly and repeatedly.
Correct answer: Shift to a lower gear and use engine braking.
Explanation: On a long, steep descent, using a lower gear allows the engine to help control the vehicle's speed through engine braking, reducing the reliance on the service brakes and preventing them from overheating and fading. Continuous light pressure or pumping can still lead to brake fade, and using the parking brake is unsafe.
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