Ontario Class D Practice Test · Question
To effectively use engine braking on a long descent, which gear should be selected for a safe and controlled speed?
When descending, select a low gear that allows the engine to rev safely at an RPM that provides sufficient engine braking, similar to the gear you would use to
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Question: To effectively use engine braking on a long descent, which gear should be selected for a safe and controlled speed?
Answer options:
- The highest gear to keep engine RPM low ✅ A low gear, similar to what would be used for climbing the same grade
- Neutral to allow the truck to coast freely
- Second highest gear, regardless of the steepness
Correct answer: A low gear, similar to what would be used for climbing the same grade
Explanation: When descending, select a low gear that allows the engine to rev safely at an RPM that provides sufficient engine braking, similar to the gear you would use to climb the same hill.
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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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