Class 3 Commercial Driver Practice · Question
On a long downgrade in a heavy vehicle, the correct technique is:
Pick a gear low enough to control speed without continuous service braking; coasting in neutral is illegal and unsafe.
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Question: On a long downgrade in a heavy vehicle, the correct technique is:
Answer options:
- Coast in neutral to save fuel ✅ Select a lower gear before the descent and use engine braking, brake to keep below safe speed
- Pump the service brakes continuously
- Use only the parking brake
Correct answer: Select a lower gear before the descent and use engine braking, brake to keep below safe speed
Explanation: Pick a gear low enough to control speed without continuous service braking; coasting in neutral is illegal and unsafe.
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Question explanations
- When performing a pre-trip inspection, what is the minimum air pressure required in an air brake system before
- When driving a straight truck, how should you pass a pedestrian walking on the shoulder of the road without a
- Scenario 1: Tare weight refers to:
- Scenario 2: Gross combination weight (GCW) is:
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