Practice question

When traveling down a steep downgrade:

  1. The air brakes should be used.
  2. Shift into a lower gear, then use brakes to supplement the braking effect of the engine.
  3. The vehicle should be continually downshifted in the place of using the brakes.
  4. The vehicle should be driven on the shoulder.

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

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: New Jersey CDL Air Brakes Test 1 →