2026 New Hampshire General Knowledge CDL Practice Test 6

Which of these statements about downshifting for a long downhill grade is true?

It should not be done with automatic transmissions It allows engine compression and friction to help the brakes slow the vehicle The proper time to downshift is just after the vehicle starts down the hill It is necessary if the vehicle has retarders

Correct Answer:

It allows engine compression and friction to help the brakes slow the vehicle

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