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Practice test 10 of 10

Hawaii CDL — Air Brakes Practice Test 10

The Hawaii 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.A driver keeps leaning on fading brakes instead of easing the load on them. Where does the manual say continued overuse can lead?
  2. 2.The manual says a dead low pressure warning signal plays out differently depending on the kind of air system. Which pairing is right?
  3. 3.You are slowing with the brake pedal and need more braking. What happens when you push the pedal down harder?
  4. 4.On a tractor, truck or bus with ABS, where is the yellow ABS malfunction lamp?
  5. 5.The final air brake check takes two leakage readings on a single vehicle: one with the brakes released and one with the foot brake held down. How do the limits compare?
  6. 6.The ABS requirement reached one kind of air-braked vehicle a year before the rest. Which kind?
  7. 7.To test the low pressure warning signal, you shut the engine off with enough air that the warning is not showing. What must you switch on before pumping the pressure down?
  8. 8.An older vehicle's compressor governor cuts out at 120 psi. Under the manual's alternate rule for older vehicles, the visible low air warning must come on before pressure falls below what level?
  9. 9.The low air pressure warning required on air-braked vehicles must be of what kind?
  10. 10.Compared with a vehicle that has hydraulic brakes, which extra distance does an air-braked vehicle add to its total stopping distance?

0 of 25 answered