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Practice test 9 of 10

North Dakota CDL — Air Brakes Practice Test 9

The North Dakota 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.Someone pulls out suddenly in front of you, and there is enough distance to stop. How does the manual say you should brake?
  2. 2.A modulating control valve lets the driver bring the spring brakes on gradually, harder the farther the lever is moved. What does the manual say this is for?
  3. 3.You are about to test the low pressure warning signal in the Step 7 final air brake check. How does the manual have you set things up before stepping on and off the brake pedal?
  4. 4.Your truck has a dual air brake system. How does the manual say supply pressure will be shown?
  5. 5.According to North Dakota's edition of the manual, all vehicles built since what year have automatic slack adjusters?
  6. 6.The manual says never to leave your vehicle unattended without doing one of two things. Which pair is it?
  7. 7.The ABS requirement for air-braked vehicles took effect on two different dates. Which vehicles does the manual say came first?
  8. 8.In the first component of North Dakota's three-component air brake check, you build pressure to governed cut-out, shut off the engine, and then turn the key back to "on." Why does the manual have you turn the key on?
  9. 9.Which of these is NOT one of the three braking systems that the manual says make up air brakes?
  10. 10.Only your tractor has ABS; the trailer does not. During hard braking, what does the manual tell you to keep an eye on?

0 of 25 answered