Practice question

Why must the parking brake not be used as the normal way to stop a moving CMV?

  1. It can lock wheels and is not designed for normal service braking
  2. It builds air faster than the compressor
  3. It measures tank moisture
  4. It is required for every normal stop

Answer: A — It can lock wheels and is not designed for normal service braking

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

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