Skip to main content
DMV Test Free
ENES

Practice test 1 of 10

West Virginia CDL — Air Brakes Practice Test 1

The West Virginia 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.You are driving a truck with a dual air system. The primary gauge reads 110 psi, but the secondary has sagged to 50 psi. Going by the manual, should the low air warning be on?
  2. 2.West Virginia's chart lists CDL endorsements by letter, each with a fee, and restrictions by letter. Under which heading are air brakes handled, and with which letters?
  3. 3.Section 5 mentions several model years and dates. Which pairing matches the manual?
  4. 4.On a newer air-braked vehicle, which pairing of knob movement and result is right for the yellow parking brake control?
  5. 5.You are making an emergency stop with controlled braking when you find you must steer much farther to one side than a small movement of the wheel allows. What does the manual say to do with the brakes?
  6. 6.Which statement about the brake pedal in an air brake system does NOT match the manual?
  7. 7.The manual's figure of more than 450 feet to stop from 55 mph in an air-braked vehicle comes with conditions. Which of these is one of them?
  8. 8.Section 5's parking brake control diagram says one driver action both closes the tractor protection valve and sets the spring brakes. Which action?
  9. 9.Which of these is NOT a routine that Section 5 gives the driver?
  10. 10.In Section 5's Step 7 list, one check flows straight into the check of whether the spring brakes apply on their own: you simply keep pumping the pedal. Which check is it?

0 of 25 answered