Scenario 57: On a long downgrade in a heavy vehicle, the correct technique is:

Question: Scenario 57: 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. The correct answer is "Select a lower gear before the descent and use engine braking, brake to keep below safe speed". This capacity-fill scenario 57 reinforces the same competency for the class3 bank and follows the certified explanation standard.