- Alabama: Test 1 / Test 2
- Alaska: Test 1 / Test 2
- Arizona: Test 1 / Test 2
- Arkansas: Test 1 / Test 2
- California: Test 1 / Test 2
- Colorado: Test 1 / Test 2
- Connecticut: Test 1 / Test 2
- Delaware: Test 1 / Test 2
- District of Columbia: Test 1 / Test 2
- Florida: Test 1 / Test 2
- Georgia: Test 1 / Test 2
- Hawaii: Test 1 / Test 2
- Idaho: Test 1 / Test 2
- Illinois: Test 1 / Test 2
- Indiana: Test 1 / Test 2
- Iowa: Test 1 / Test 2
- Kansas: Test 1 / Test 2
- Kentucky: Test 1 / Test 2
- Louisiana: Test 1 / Test 2
- Maine: Test 1 / Test 2
- Maryland: Test 1 / Test 2
- Massachusetts: Test 1 / Test 2
- Michigan: Test 1 / Test 2
- Minnesota: Test 1 / Test 2
- Mississippi: Test 1 / Test 2
- Missouri: Test 1 / Test 2
- Montana: Test 1 / Test 2
- Nebraska: Test 1 / Test 2
- Nevada: Test 1 / Test 2
- New Hampshire: Test 1 / Test 2
- New Jersey: Test 1 / Test 2
- New Mexico: Test 1 / Test 2
- New York: Test 1 / Test 2
- North Carolina: Test 1 / Test 2
- North Dakota: Test 1 / Test 2
- Ohio: Test 1 / Test 2
- Oklahoma: Test 1 / Test 2
- Oregon: Test 1 / Test 2
- Pennsylvania: Test 1 / Test 2
- Rhode Island: Test 1 / Test 2
- South Carolina: Test 1 / Test 2
- South Dakota: Test 1 / Test 2
- Tennessee: Test 1 / Test 2
- Texas: Test 1 / Test 2
- Utah: Test 1 / Test 2
- Vermont: Test 1 / Test 2
- Virginia: Test 1 / Test 2
- Washington: Test 1 / Test 2
- West Virginia: Test 1 / Test 2
- Wisconsin: Test 1 / Test 2
- Wyoming: Test 1 / Test 2
Free New Mexico CDL Air Brakes Test 2025
Part of mandatory Entry-Level Driver Training Course Based on 2025 NM commercial driver's license manualAvailable in EN, ES
30questions
6mistakes allowed
80%passing score
The best way to succeed as a truck driver in New Mexico is to be as unlimited as possible and that means being able to drive a vehicle with air brakes. This exam features 30 multiple-choice questions based on the information in the New Mexico Commercial Driver License Manual that are necessary for you to receive your air brakes qualification. The more often you practice, and read each question’s explanation, the more comfortable you will be, and the more likely to pass your exam with flying colors. Then, the more chances you’ll have for success as you can drive a wider range of commercial vehicles. So, start practicing today, come back as often as possible, and good luck both now, and on your real New Mexico CDL air brake exam in the future!
Perfect for
- First-time NM CDL and CLP applicants
- CDL holders adding endorsements
- NM CDL renewal applicants
What to expect on the actual exam
| How many questions | 25 |
|---|---|
| How many correct answers to pass | 20 |
| Passing score | 80% |
Unlock all 1,500+ exam-like questions for New Mexico. Pass Guarantee
Become a member to unlock our extensive library of 1,500+ exam-like questions and get your New Mexico ELDT certification online. Official FMCSA-approved national Entry-Level Driver Training provider.
Pass the first time, guaranteed
List of questions (classic view)
- How can you tell if your vehicle is equipped with an antilock braking system (ABS)?
- Which of the following should you do before leaving your vehicle unattended?
- Which of the following will be true about your brake function if your antilock braking system (ABS) fails?
- What is the best way to test if your vehicle's spring brakes come on automatically?
- What is the best way to test your vehicle's low air pressure warning signal?
- The purpose of a supply pressure gauge is
- How would you check your truck's slack adjusters?
- After the initial drop, the maximum acceptable leakage rates per minute are
- Which of the following are true about a dual air brake system?
- If the air tanks are not drained,
- Which of the following is NOT part of the braking process when you're driving a tractor-trailer combination vehicle with an antilock braking system (ABS)?
- Spring brakes are
- Which vehicles must have low air pressure warning signals?
- An antilock braking system (ABS)
- When should you drain your air tanks?
- Why must you pass a knowledge test on air brakes?
- Which of the following is NOT part of the drum brake?
- Slack adjusters are
- Which of the following can cause brakes to fade or fail?
- When should you use the parking brake?
- How do brakes work on a long, steep downgrade?
- The tractor protection valve
- Under which conditions are front wheel brakes good?
- At what measurement is the safety valve USUALLY set to open?
- Which of the following is NOT part of the air brake system?
- The low air pressure warning signal will come on before the pressure in the air tanks falls below
- A low pressure warning signal is required on
- All vehicles equipped with air brakes have
- With air brake-equipped vehicles, the parking brakes should be used
- The use of air brakes on a downgrade is only a supplement to the
You may also like
NM CDL Practice Test App
Download our free iOS or Android app and practice for your driving test offline or on the go.
10 Things You Should Do Before Your Driving Knowledge Exam (PDF)
Many people do their best but still get to the DMV overconfident and underprepared because they fail to do some of the simple...
Open PDF
Are you in another state?