Skip to main content
DMV Test Free
ENES

Practice test 8 of 10

Arkansas CDL — Air Brakes Practice Test 8

The Arkansas 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.Since what year have all vehicles been built with automatic slack adjusters?
  2. 2.The manual names two ways an air compressor may be kept cool. Which pair is correct?
  3. 3.With the controlled braking method, how hard do you press the brakes?
  4. 4.A truck with a dual air brake system is pulling an air-braked trailer. Which system feeds air to the trailer?
  5. 5.You are in the proper low gear on a long downgrade and using the brakes to trim your speed. About how long should each brake application last?
  6. 6.You press the brake pedal to slow for a red light in an air-braked truck. Which of its three braking systems is doing that work?
  7. 7.In a dual air brake system, the low air warning must come on before pressure drops below 55 psi in which system?
  8. 8.You are driving an older air-braked truck. Which of these might its parking brake control be?
  9. 9.Among air-operated foundation brakes, which type does the manual call the most common?
  10. 10.According to the manual, which defect turns up most often during roadside inspections?

0 of 25 answered