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OK CDL General Knowledge Practice Test 4 2025

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

This fourth OK General Knowledge practice test contains another set of 50 multiple-choice questions based on the official CDL manual. Just like our other practice tests, this one is also designed to prepare you for the General Knowledge portion of your 2025 Commercial Driver’s License exam. There are several answer options, but only one of them is correct. Each question also includes a hint and an explanation. It is recommended that you check each question’s explanation to gain some further insight into the rule being tested. Every time you answer a question, you’ll get immediate feedback with a detailed explanation, so you won’t need to wait until the end of the test to know the correct answers. Good luck and drive safely!

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
OK CDL General Knowledge Practice Test 4 2025
Commercial Driver's License
Based on official OK 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

6 min to complete
Available in EN and ES

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

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

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