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  • 0  (10 mistakes allowed to pass)
Based on official Oklahoma exam questions

Free Oklahoma CDL Permit Practice Test: General Knowledge 2025

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

Welcome to our free Oklahoma CDL permit practice test! This practice test, one of many we offer, is designed to help you practice to pass the official CDL General Knowledge test for a Commercial Learner’s Permit (CLP).

Like the official General Knowledge test, this practice test is based on the official Oklahoma Commercial Driver License Manual. It consists of 50 multiple-choice questions on such topics as driving techniques, hazard perception, and state regulations. It’s up to date as of October, 2025. But unlike the official test, our practice test comes with features to help you learn the material. Each question has an available hint if you get stuck for an answer, and an explanation of the correct answer. You can also get more help from our automated assistant. One thing our practice test doesn’t have is a time limit. You’re not under pressure to pass; take your time to learn as much as you can.

The CLP is a crucial step along the way to obtaining a Commercial Driver’s License (CDL). The CLP will allow you to practice commercial driving under the supervision of a CDL holder. Once you become sufficiently adept at commercial driving, you can take the official skills test for a CDL. The skills test will test you on basic vehicle maneuvers, performing a pre-trip inspection, and driving on public roads.

Once you are a commercial driver, become as knowledgeable as possible about safe commercial driving in Oklahoma. As a resident of Oklahoma, you already know that Oklahoma is in “Tornado Alley.” Especially in the spring, you need to be alert for severe thunderstorms and possible tornadoes. There may also be high winds on Oklahoma’s flat plains to contend with.

Here are the most important commercial routes you should know. Interstate 35 runs from Duluth, Minnesota to Oklahoma City, and from there to Laredo, Texas. Interstate 40 runs from Barstow, California through Oklahoma (where it connects with I-35) to Wilmington, North Carolina. U.S. Route 69 runs from Albert Lea, Minnesota through Oklahoma (where it connects with I-40) to Port Arthur, Texas. U.S. Route 75 runs from Noyes, Minnesota through Oklahoma (where it connects with I-40) to Dallas, Texas.

Test-taking tip: Before taking any test, eliminate any possible distractions that might cause you to lose your focus on answering the questions correctly. If you’re feeling thirsty before the test, drink some water. If you feel you have to go to the bathroom, do so before the test starts. And so on.

Pass the first time with Premium
99.06% of our Premium users pass first try
Available in EN and ES
OK commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives

Verified for accuracy: October 2025

Reviewed by Steven Litvintchouk, M.S.
Chief Educational Researcher (ACES member)
Methodology & Editorial Policy

What to expect on the actual OK permit test

50

questions

40

correct answers to pass

80%

passing score

Real Oklahoma drivers who passed first try

Verified student reviews • Shared with permission

The questions were identical.
I didn't miss one question on my test. I was prepared it took 3 days while I worked I studied. They notified DMV with my eldt. Seriously an excellent service.
A
Chose driving-tests.org because my wife from China passed it.
I chose driving-tests.org because my wife from China passed it on her first time and she convinced me to do it.
E
I'm new to this industry.
I'm new to this industry and was not sure where to get started but I fortunately found the right place, it's very easy to navigate this site and I know where, when and how I'm making progress each step of the way. I like the way the questions are laid out and you know what to study and review automatically. I do highly recommend signing up and getting started you will see great progress in a short amount of time.👍-
RH
Prepared in under 1 week.
Prepared me well for the official oklahoma cdl general knowledge, air brake, and combination test in under 1 week
BB
Great study guides.
Studied for a couple of hours the first night. The next morning studied again and then went to the dmv the same day and passed both test. Missing one question on school bus and two on passenger vehicle. Got my permit and fixing to start class so that I can two more endorsements to my cdl.
SEG
Hazmat Endorsement.
I used Driving Tests to get my HME (hazmat endorsement) on my CDL because I needed the ELDT with the newer recent laws implemented. I had accidentally purchased the base plan instead of the HME plan (about difference). It only took a quick email to be refunded the difference and switched to the HME course. It's simple to use and very helpful. You can continuously repeat the tests until the information is as familiar to you as the back of your hand! I'd recommend this service if you need to complete the ELDT for any endorsements, or if you're anxious about passing the DMV tests the first time. Once you reach 80% passing chance they will upload your certificate of completion for ELDT to the TPR (training provider registry) and from there the DMV can verify you completed whatever ELDT you need.
DW
The best website for preparing for driving knowledge tests.
This is the best website for preparing for driving knowledge tests. When I first got my CDL, I got the Tanker Endorsement too. However, as the years passed, I realized it was a good idea for me to get my Hazmat Endorsement. Unfortunately, I waited too long to get my Hazmat Endorsement so I had to take a Entry-level Driver Training Course before I could take the actual Hazmat Endorsement knowledge test. So, I turned to Driving-Tests for help, not only did they provide the study materials I needed to pass the Hazmat knowledge test, they're listed in the Training Provider Registry (TPR), so, they're approved by the FMCSA to submit training completion certificates to the TPR. Needless to say, after successfully completing their ELDT course, they submitted my completion certificate. I was then able to take my Hazmat knowledge test and I passed it on my first attempt!
MD
Great product.
Helped me prepare and be ready to take the CDL exam in 2.5 weeks. Passed knowledge, air brakes, passenger and school bus the first time. Once I sat down to take the tests I could tell I would have had a difficult time if I had not prepared using this.
RP
Saved me time and money!
I was able to get my Hazmat ELDT certificate in under 1 day. Not only was it extremely fast, but I actually feel much more knowledgable on the subject. Much better alternative to spending thousands and going to a brick and mortar school!
AG
This site really helped me to prepare….
This site really helped me to prepare to take and pass my CDL tests on the very first time! I really enjoyed that the questions were related to my state specifically and the site allowed me to review questions I got wrong. I would recommend anyone studying for their CDL to use this site as the money you spend is worth it. The only critique I have is I wished the flashcard part of the program was easier to use. I am now preparing to leave to start my training at the actual truck driving school. Thanks driving-tests.org for your help..
MS
DMV Licensing made easy.
I failed my CDL before because I couldn’t memorize all the key point on the handbook. It was very frustrating. So I started looking online for something that can maximize my chances passing the next time I took the writing test exam and I came across this product. I gave it a chance and bingo I was able to succeed on my next try. What I love about this product is that it retest you in all aspects of the test even the ones I was getting wrong at first. I loved the simplicity and the simulator test I was doing. It helped me obtain my goals. I would recommend this product to anyone who is in need of obtaining any kind of DMV licensing.
CB

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