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Based on official Ohio exam questions

Free Ohio CDL Permit Practice Test: General Knowledge 2025

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

Have you been reading the official Ohio Commercial Driver License Manual (Ohio CDL Handbook 2025) because you need to pass the official General Knowledge test on commercial driving? Concerned that you still may not pass the test without some additional help? No problem! You’ve certainly come to the right place. You’re not the only one in this situation by any means. That’s why so many other aspiring commercial drivers have decided to supplement their reading of the manual with other study tools, such as the ones we offer.

This free Ohio CDL permit practice test is based on the official manual, just like the official General Knowledge test. The practice test is up to date as of October, 2025. Practicing with it will make all the material covered by the test questions easier to remember. To make your learning easier, each of the 50 practice questions comes with a helpful hint and an explanation of the correct answer. The practice questions on this test will assess your knowledge of such topics as basic vehicle maneuvers, cargo management, following distance, stopping distance, and vehicle components. Stuck on a puzzling question? Our automated assistant can give you a hint. Still got the question wrong? The assistant can give you an explanation of the correct answer.

Besides passing the General Knowledge test, you must meet some other requirements at this stage, such as completing a medical examination and receiving your Medical Examiner’s Certificate proving that you completed it. Once you obtain a Commercial Learner’s Permit (CLP), you can start practicing for the skills test. Passing the skills test is a necessary step toward obtaining a Commercial Driver’s License (CDL). The skills test consists of three parts: basic vehicle maneuvers (such as backing), a pre-trip inspection of the vehicle, and a road test.

Once you hold a CDL, you can profit from all the commercial driving opportunities Ohio has to offer. Ohio is the third-largest manufacturing state (behind California and Texas), with over 12,000 manufacturers, creating a demand for truck drivers to carry their products. Ohio also employs truck drivers to transport products from its large agricultural sector. As befits Ohio’s role as a major Midwest commerce hub, it is served by such important truck routes as Interstate 70 (which runs from Utah through Columbus and on to Maryland), Interstate 71 (which starts in Kentucky and connects Columbus, Cincinnati, and Cleveland), and Interstate 75 (which runs from northern Michigan through Toledo, Dayton, and Cincinnati and on to Florida).

This test is great whether you’re applying for your CDL for the first time or renewing. Of course, passing this practice test is only a first step. The real goal is to become a safe and proficient commercial driver on Ohio’s roads. Go through the exam at your pace, learning from every question, and then get ready to take your place among the ranks of Ohio’s professional drivers.

Good luck, and drive safe out there!

Available in EN and ES
OH commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives

Authored and curated by Steven Litvintchouk, M.S.

Chief Educational Researcher (ACES member)
Methodology & Editorial Policy
Last verified for accuracy: October 2025 (reviewed weekly)

What to expect on the actual OH permit test

50

questions

40

correct answers to pass

80%

passing score

Real Ohio drivers who passed first try

Verified student reviews • Shared with permission

Am currently working in fla.
I am currently working in fla. and with my new job I needed my hazmat and tanker endorsement so when I went home to visit I only had a week to get everything done including my tanker and hasmat. I got my tanker endorsement with no problem. that left me with the hazmat certification testing and background chk to do with only a few days left. thankfully I found this and did my certification and kept studying did the course and back ground chk and I went straight to the bmv feeling good I went in took the test I was done in less than 10 mins 100% I couldn't believe it every question was in program. finished my visit with my family with 3 days left and no stress. thank you I couldn't have passed it with out this program
MKR
Downloaded the program, I did the learning modules, and then.
I downloaded the program, I did the learning modules, and then did all the tests and everything, and I finished up today. As soon as they said that I was able to go to the DMV, I left my house, went and took my test, and passed it on the first try! All the questions that were on the program, the practice tests, all that stuff, they were all on there. It was only like maybe two questions that weren't on there, but I just skipped those and went ahead and kept answering all the questions that I knew, and I passed with a perfect explorer. First try. This program is awesome.
T
Made the tests easy! All of the different practice test and.
All of the different practice test and simulators made passing my hazmat and tanker endorsement easy. Was a great program that I highly recommend.-Shane
MTTE
Very good and informative course.
Very good and informative course! The website is easy to use and navigate. It shows you what is the next step you should do. The tests are very close to the real exam questions. The website also has an AI bot which is very helpful during study process. Highly recommend!
A
Driving-tests.org offers everything you need to prepare: the.
Driving-tests.org offers everything you need to prepare: the official manual, practice tests with helpful hints, cheat sheets, a bank to review your wrong answers, a test simulator, and even a marathon mode. All of these features make studying easier, more effective, and build real test confsheet, I nailed the General Knowledge, Air Brakes, Combination, Doubles & Triples and Tanker tests back to back on June 2024. Now I am going for Haz-Mat.
F
1 weekend, 3 endorsements, all aced.
Studied over the weekend to pass 3 cdl endorsements on Monday. The practice tests made the actual exam questions plenty familiar. The change in wording of the final exam Simulations from the practice ones helped me retain the information in different forms so that the real deal wouldn't fool me out of questions that I knew the answers to. All in all, I didn't het a perfect score but not a bad one either; passed them all at once.
H
Hazmat endorsement.
Brought the hazmat eldt and it was really helpful. Things I knew but it was also a lot of things I didn’t know. I’m prepared to take my knowledge test. Definitely will use again for future cdl class A endorsements. 5 stars
R
Feels like cheating.
This felt like cheating to be honest. I waited at the DMV for 3.5 hours and the lady told me at 1605 that she doesn't think I'll have enough time to take tanker and hazmat. I told her all I needed was 5 minutes. I sat down at 1620 and stood up at 1626 (took an extra minute oops) and told her I was done. She looked at me like I had 3 heads and was amazed that I'd passed so quickly. This program will make you 100% within days.
JR
Perfect Course to study with.
I thought it was the perfect course to take for hazmat! The was it is laid out to learn in segments was great but the most helpful thing for me and I think anyone else that may take the hazmats course is the “Hint” button that help me out a lot! I highly recommend “Driving-Tests.Org
RS
Easily Passed On The 1st Try!
I literally would not have received my HazMat & Tanker endorsements without this program. Practice makes perfect and with the help of this program, I passed my HazMat and Tanker knowledge exams without missing a single question! If you need to learn/study quick for your knowledge tests, this is the program for you! 10/10
C
Best resource to pass any state Cdl hazmat test.
I studied practice tests provided for my state, and those tests was exactly what my state administered. Scored 100% with ease!
WH
Outstanding.
Passed all my CDL endorsements first time around thanks to using driving-tests.org. The practice test questions were the same as the DMV's test, so I went in well prepared. I can't say enough about your website. Thank You!
D
Outstanding program - permit in 4 days!
I’ll save the long boring “me” story and get right to it. Without this program, it would have taken me much longer to get my CDL-A permit. It only took about 4 days total! I passed with about 93% total out of 115 questions. You can’t find anything better. So thank you very much to the creators of this program. Without it I’d be in a coma from the boredom of trying to use the DMV manual alone.
VT
Completed in only 6 days.
In a matter of 6 days, I was able to pass the Knowledge tests with flying colors. This was well and the time that was needed to complete. I hghly recommend anyone tht is wanting to get their CDL Learners Permit.
J

FAQs

How do you obtain a CDL in Ohio?

To get a CDL in Ohio, first obtain a commercial learner's permit (CLP) by passing the required knowledge tests. Hold the CLP for at least 14 days, then complete CDL training (if desired) and pass the skills test. Ensure you meet all age and medical requirements.

What is the cost of getting a CDL?

The cost for a CDL in Ohio includes a $27 fee for the knowledge test, $50 for the skills test, and a $42.25 fee for the CDL itself. Additional fees apply for endorsements and CDL training programs.

How long does CDL training last?

CDL training duration in Ohio varies by program. Full-time courses can last several weeks, while part-time courses may extend over several months, depending on the school and the specific program.

What disqualifies you from getting a CDL?

In Ohio, disqualifications from obtaining a CDL include having multiple licenses, certain criminal convictions, especially involving a motor vehicle, drug or alcohol related offenses, and major traffic violations like reckless driving or leaving the scene of an accident.

What are the 3 tests for the CDL permit?

The three tests for the Ohio CDL permit include the General Knowledge test, Air Brakes test (if applicable), and the Combination Vehicle test (for Class A CDL). Specific endorsements require additional tests.

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