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  • 0  (6 mistakes allowed to pass)

Free NM CDL Diagnostic Test 2025

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

To get a rough idea of how much you know about commercial driving rules in New Mexico, try our NM CDL diagnostic test. It contains 30 multiple-choice questions on a variety of topics in commercial driving: air brakes, hazardous materials, buses, combination vehicles, and tanker trucks. This test will help you quickly identify gaps in your knowledge of commercial driving, which will be especially useful if you’re just starting to prepare for the CDL knowledge exams. Each practice question includes a picture and has four possible answers. Choose the most complete and correct answer for each question. Each question also comes with an optional hint if you need it and an explanation of the correct answer. Try our CDL diagnostic test and see whether you are ready for the real thing. Good luck, and drive safely!

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
Free NM CDL Diagnostic Test 2025
NM commercial driver's license
Based on official NM exam questions
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
Methodology & Editorial Policy

5 min to complete
Available in EN and ES

What to expect on the actual NM permit test

50

questions

40

correct answers to pass

80%

passing score

Real New Mexico drivers who passed first try

Verified student reviews • Shared with permission

Passed all my tests with no problems.
The employee I worked with at the mvd even commented on how fast I was able to complete the tests.
AS
This is the real deal.
You know how we all are skeptical of online services? Well, this is THE Real DEAL! At MVD they gave me 2 hours for each test. I finished 3 tests in less than 30 minutes. No pressure, no anxiety. All because of God's grace through driving-tests.org! Purely amazing!
M
Started out with Combinations.
Started out with Combinations for class A permit in the state of New Mexico. Took and passed the four mini tests and eventually graduated to 99 question quiz. I ended up memorizing the answers to all 99 questions. I felt prepared not overconfident!
MB
This was great!
This was great, I passed the written tests with 100 percent across the board! I can't speak for the ELDT training because I didn't need it as I've had a CDL before, but the practice tests were great!
MG
I used this platform when I first got….
I used this platform when I first got my cdl 08/2020 and passed every exam on the first try. So when I decided to get my endorsement I used it again and passed both my hazmat & triple/double on my first try 12/2023. The answers and questions are exactly the same on the real test. If you study you'll passed. I only studied for 2 hours and still passed with only missing 1 question on each which was by not reading it all. I've passed my clp and all endorsement hazmat, tanker, and doubles/triples on the first try with the study material provided by driving-tests.org. I highly recommend it to anyone that's getting the first time cdl.
AW
Pass guarantee.
I had failed the CDL tests a couple times from just studying off the book and kept failing i gave this website a shot and passed with a 98% on general knowledge a 100% and air brakes and a 100% on combination vehicles from less then a week of studying just on this site it truly does help and make you pass if your just willing to let it teach you
I

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