Practice question

What is the correct technique for driving down a long, steep grade with air brakes?

  1. Ride the brakes continuously while staying in a higher gear
  2. Select a low gear before starting down and use controlled, intermittent brake applications
  3. Use only the engine brake and avoid the air brakes entirely
  4. Shift to neutral to save fuel and use brakes as needed

Answer: B — Select a low gear before starting down and use controlled, intermittent brake applications

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

Practice more: CDL Air Brakes Knowledge Test →