Practice question

For New Jersey CDL air-brake testing, after a long downgrade, your brakes feel weak or 'spongy'. What is the most likely cause?

  1. A loose mirror
  2. Brake fade from overheated drums and linings; you should pull over safely and let the brakes cool
  3. Underinflated tires
  4. High oil pressure

Answer: B — Brake fade from overheated drums and linings; you should pull over safely and let the brakes cool

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

Practice more: NJ CDL Air Brakes Test Practice Questions - New Jersey Commercial Driver License (CDL) Air Brakes Knowledge Test Exam →