Practice question

Under federal CDL rules, what can cause an air-brake restriction?

  1. Failing the air-brake knowledge component or skills testing in a vehicle without air brakes
  2. Passing the air-brake knowledge test
  3. Having a valid Minnesota driver license
  4. Reading Section 5

Answer: A — Failing the air-brake knowledge component or skills testing in a vehicle without air brakes

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 →