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Practice test 10 of 10

Maine CDL — Air Brakes Practice Test 10

The Maine CDL — Air Brakes knowledge test has ~25 questions; you need ~20 correct (80%) to pass.

This practice test follows that format: 25 questions, pass with 20 correct. Answer every page, then grade it to see the answers and explanations.

Questions 1–10 of 25

  1. 1.A commercial learner's permit applicant never takes the air brake portion of the knowledge exam. According to the manual's restriction list, can the L restriction be placed on the permit itself?
  2. 2.The parts descriptions in the Air Brakes section name several things that can leave you with brakes that do not work. Which of these is NOT one of them?
  3. 3.The Air Brakes section adds extra checks to three steps of the seven-step inspection. Which of these steps gets NO added air brake check there?
  4. 4.Most heavy-duty vehicles have a dual air brake system instead of a single one. What reason does the manual give?
  5. 5.Three of these statements about the safety relief valve agree with the manual. Which one does NOT?
  6. 6.A Maine CDL holder has an air brake restriction and has just been hired by a company that runs air-braked trucks. When does the Maine manual say a license can be amended to remove a restriction?
  7. 7.On flat ground with cool brakes, you find you need more application pressure than usual to make ordinary stops. Besides fading, what does the manual say can cause this?
  8. 8.A Maine driver wants an air brake restriction taken off a CDL. Which of these is NOT part of what the Maine manual requires?
  9. 9.Some vehicles have a dashboard control handle that lets the driver bring the spring brakes on gradually. What does the manual call it?
  10. 10.The manual warns about two different outcomes if you keep driving after a low air warning until the spring brakes come on by themselves. Which pairing is right?

0 of 25 answered