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Practice test 3 of 10

Michigan CDL — Air Brakes Practice Test 3

The Michigan 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.Air brakes actually bundle three braking systems into one setup. Which grouping correctly names them?
  2. 2.At 55 mph on dry pavement, roughly how far is the total stopping distance for an average driver in an air brake vehicle?
  3. 3.The safety relief valve on the first air tank is normally set to open at about what pressure?
  4. 4.As the compressor fills the reservoirs, at roughly what tank pressure does the governor tell it to stop pumping?
  5. 5.What describes the "controlled braking" method for an emergency stop?
  6. 6.For a vehicle with air brakes, total stopping distance is made up of which factors?
  7. 7.Using the recommended snub-braking method on a downgrade, when do you release the brakes after an application?
  8. 8.Air-braked truck tractors are required to have antilock brakes if they were built on or after which date?
  9. 9.How do you test that the parking brake will hold?
  10. 10.The brake pedal on an air brake vehicle also goes by which other names?

0 of 25 answered