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  • 0  (6 mistakes allowed to pass)

Free NC CDL Diagnostic Test 2025

Average pass rate for CDL tests in North Carolina: 59%.
Average pass rate for this test: 33%.
Hard
5 min
Score distribution:
90-100=>0%
80-89=>0%
70-79=>5%
60-69=>21%
<60%=>74%
Avg. first-try score: 50%

To get a rough idea of how much you know about commercial driving rules in North Carolina, try our NC 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!

Tricky exam topics covered here:
Skidding & Braking
Steering & Control
Free NC CDL Diagnostic Test 2025
NC commercial driver's license
Based on the official NC CDL HandbookHandbook‑based (2025) + exam‑taker feedback
18 NC students practicing now
•270completed today
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

Real North Carolina drivers who passed first try

Verified student reviews • Shared with permission

Prat0519 It really helps to crack the NC DMV written exams.
It really helps to crack the NC DMV written exams. It’s a must. The course’s design very well and the way it drives you through all the area of driving.
P
Ordered the 7day program for the ELDT Passenger Endorsement.
I ordered the 7day program for the ELDT Passenger Endorsement and thoroughly was amazed at the training methods and concluded the training in one day. In addition, in ensuring I was set up and everything was in proper order, Andrei Zakhareuski's assistance was prompt, professional and rendered with a spirit of patience and genuine concern to ensure I got what I need.
GD
Layout of the program was amazing.
The little words of encouragement during tests was great. I was able to take the DMV test sooner then expected and only got 1 question wrong which was my fault. I would absolutely recommend this program to anyone.
RH
Don't go it alone. Practice, practice, practice..
I relied on this product to help me quickly study and pass the NC CDL Learner's Permit test. It succeeded as did I. I would definitely recommend this product.
NA
Failed CDL permit test twice, this program helped me pass the third time.
I had failed the General Knowledge test for my CDL permit, twice. I decided to get the Driving Test program to better my chances. I studied hard for a week before the test. I passed with flying colors! I was thrilled. I couldn't believe how easy it was. I knew most of the answers without even thinking. I was so proud of myself. This program works. I it really does! Most of the questions that were on the permit test were the same questions on the program. You seriously will not fail the exam if you get this program. Plus you get your money back if you fail anyway, so it was a no brainer for me. I didn't want to take the chance of failing one more time, I wanted to make sure I did everything I could to pass. I highly, highly recommend this the first time!
KAM

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