Practice question

On the New Jersey CDL Air Brakes knowledge test, how do you measure brake chamber pushrod travel during inspection?

  1. With the engine running
  2. With the brakes fully applied, measure how far the pushrod has extended from the chamber compared to its retracted position
  3. Only by sight
  4. With air pressure off

Answer: B — With the brakes fully applied, measure how far the pushrod has extended from the chamber compared to its retracted position

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 →