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Practice test 7 of 10

Minnesota CDL — Air Brakes Practice Test 7

The Minnesota 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.Before driving a vehicle with a dual air system, you should wait until the compressor builds at least how much pressure in both systems?
  2. 2.What is 'controlled braking' during an emergency stop?
  3. 3.Why can the brakes still be applied several times even if the compressor quits working?
  4. 4.If a vehicle has an alcohol evaporator, do you still need to drain the air tanks daily?
  5. 5.During a routine stop in a truck with a manual transmission, when should the clutch go in?
  6. 6.With the engine off and the parking brake released, the air pressure loss on a single vehicle should be no more than how much per minute?
  7. 7.On the application pressure gauge, needing steadily more pressure to hold the same speed is a sign of what?
  8. 8.When should you avoid setting the parking brakes and use wheel chocks instead?
  9. 9.If one half of a dual air system loses most of its pressure, what should you expect?
  10. 10.You are stopping a tractor-trailer on which every axle has a working antilock system. What braking method should you use?

0 of 25 answered