Skip to main content
DMV Test Free
ENES

Practice test 2 of 10

New Mexico CDL — Air Brakes Practice Test 2

The New Mexico 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 brake hard on a slick road in a vehicle without ABS, and wheels other than the steering wheels lock up. Which of these is NOT one of the results the manual lists for that?
  2. 2.A truck tractor and a semitrailer, both with air brakes, were each built in July 1997. Going by the manual's dates, which of them was required to have ABS when it was built?
  3. 3.The first component of Section 11's air brake check has you shut off the engine before you release the brakes and hold the foot brake down. Where does the manual say to leave the key?
  4. 4.Your low air pressure warning comes on while you are driving. Which of these is NOT part of what the manual says about that situation?
  5. 5.The brakes-applied leakage test in the Step 7 check has every driver release the parking brake before pressing the foot brake. What else does the driver of a combination vehicle release?
  6. 6.The service brake check on the vehicle inspection test has you pull forward at 5 mph and stop. Which kind of service brakes does Section 11 say it covers?
  7. 7.Does the manual give air-braked vehicles a separate inspection routine of their own?
  8. 8.An applicant passes the air brakes knowledge test, then takes the CDL skills test in a truck that has hydraulic brakes. What does Section 1 say about the L restriction?
  9. 9.New Mexico's list of CDL restrictions has two entries about air brakes, L and Z. Which of them is printed with a note on how the restriction is removed?
  10. 10.A bus has dual parking control valves. At the end of a run, which of the two does the manual assign to setting the spring brakes when you park?

0 of 25 answered