Class 1 Commercial Driver Practice · Question
Scenario 67: When descending a long downgrade, you should:
Select a gear low enough to control speed without continuous service brake use; engine/retarder braking prevents brake fade. Coasting in neutral is illegal and
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Question: Scenario 67: When descending a long downgrade, you should:
Answer options:
- Coast in neutral to save fuel ✅ Select a lower gear before the descent and use engine braking
- Pump the service brakes continuously
- Apply the trailer hand valve only
Correct answer: Select a lower gear before the descent and use engine braking
Explanation: Select a gear low enough to control speed without continuous service brake use; engine/retarder braking prevents brake fade. Coasting in neutral is illegal and unsafe. The correct answer is "Select a lower gear before the descent and use engine braking". This capacity-fill scenario 67 reinforces the same competency for the class1 bank and follows the certified explanation standard.
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Question explanations
- Approaching a sign that reads 'Runaway Lane / Emergency Escape Ramp Ahead', what is the immediate significance
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