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Practice test 8 of 10

Rhode Island CDL — Air Brakes Practice Test 8

The Rhode Island 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.Which of these air-braked vehicles was NOT required to come equipped with antilock brakes?
  2. 2.According to the manual, which vehicles must be equipped with both emergency brakes and parking brakes?
  3. 3.Only your tractor has ABS. As you brake, you see in the mirror that the trailer is starting to swing out. What does the manual tell you to do?
  4. 4.During a hard stop on a slick road, the ABS computer senses that a wheel is about to lock. What does it do?
  5. 5.For the service brake test, you roll forward at about 5 mph and brake firmly with the pedal. Which of these are you watching for?
  6. 6.Your truck's air tanks have manually operated drain valves. How is this type of drain opened?
  7. 7.Before the applied-brake leakage test, you build air up to governor cutoff. What range does the manual give for that cutoff pressure?
  8. 8.You are using controlled braking in an emergency and realize you need to steer more than a little to avoid a hazard. What should you do with the brakes?
  9. 9.In the manual Rhode Island tests from, a visible low air warning is required to switch on before tank pressure drops under what level?
  10. 10.In the proper low gear on a long downgrade, how hard should each brake application be?

0 of 25 answered