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Q

When traveling down a steep downgrade:

Air Brakeseasy
AUse only the brakes to reduce speed
BShift into a lower gear, then use brakes to supplement the braking effect of the engine
CMaintain a high gear

Detailed Explanation

The correct answer is "Shift into a lower gear, then use brakes to supplement the braking effect of the engine". This is based on federal CDL regulations and safety standards.

Correct Answer: Shift into a lower gear, then use brakes to supplement the braking effect of the engine

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