On a descent with a manual transmission, why should you use a lower gear than you used going uphill?

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Prepare for the California Class B Driving Test with multiple choice questions, study guides, hints, and explanations. Ensure you're ready to ace your exam and start driving on California roads!

Multiple Choice

On a descent with a manual transmission, why should you use a lower gear than you used going uphill?

Explanation:
Using a lower gear on a descent lets the engine do part of the braking for you. When you downshift, the engine’s resistance adds braking force, which slows the vehicle and helps you stay in control without riding the brakes. This keeps brake heat down and reduces the chance of losing braking power on long or steep slopes. Downshift gradually and keep the engine within a safe RPM range so you don’t jerk the car or over-rev. The primary aim here is controlled deceleration, not accelerating or saving fuel.

Using a lower gear on a descent lets the engine do part of the braking for you. When you downshift, the engine’s resistance adds braking force, which slows the vehicle and helps you stay in control without riding the brakes. This keeps brake heat down and reduces the chance of losing braking power on long or steep slopes. Downshift gradually and keep the engine within a safe RPM range so you don’t jerk the car or over-rev. The primary aim here is controlled deceleration, not accelerating or saving fuel.

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