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

Free Kentucky CDL Permit Practice Test: General Knowledge 2025

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

There are three classes of Commercial Driver’s Licenses (CDLs). A Class A CDL allows you to operate combination vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more, provided the towed vehicle(s) has a gross vehicle weight rating (GVWR) of more than 10,000 pounds. This class of CDL is generally for operating semi-trucks and tractor-trailers, including flatbed semi-trucks. A Class B CDL allows you to operate a single vehicle with a GVWR of 26,001 pounds or more or a combination of vehicles where the towed vehicle has a GVWR of 10,000 pounds or less. This class of CDL is generally for large buses and straight trucks, including box trucks and most dump trucks. A Class C CDL is for other kinds of commercial vehicles that transport hazardous materials or at least 16 occupants (including the driver). This class of CDL is generally for small buses (including shuttle buses) or small trucks carrying hazardous materials.

No matter which class of CDL you want, you must meet a series of requirements. Notably, you must pass an official skills test, which includes basic vehicle maneuvers, a pre-trip inspection test, and a road test. To pass this test, you must practice commercial driving under supervision until you’re good enough to drive unsupervised. To be allowed to practice commercial driving, you’ll need a Commercial Learner’s Permit (CLP).

To obtain a CLP, you must meet certain requirements too, including passing the official General Knowledge test on the basic theory of commercial driving. The questions on this knowledge test are based on the official Kentucky Commercial Driver License Manual (Kentucky CDL Handbook 2025). However, if you’ve had trouble memorizing information contained in this manual, we can help.

This free Kentucky CDL permit practice test you’re about to take is based on the official CDL manual, just like the official knowledge test. It’s up to date as of November, 2025. There are 50 multiple-choice practice questions on such topics as basic maneuvers, emergency preparedness, and pre-trip inspections. If you get stuck on a question, use the available hint. If you still miss a question, read the explanation of the correct answer carefully so you’ll know what to answer the next time. You can also ask our automated assistant for even more help. With us, there’s no time limit; take all the time you need to learn and master the material covered by this practice test. You can even use the practice test as an open-book exam: Keep the official CDL manual open at the same time. You’ll learn more by looking up the correct answer to a puzzling question instead of just guessing the answer.

Available in EN and ES
KY 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: November 2025 (reviewed weekly)

What to expect on the actual KY permit test

50

questions

40

correct answers to pass

80%

passing score

Real Kentucky drivers who passed first try

Verified student reviews • Shared with permission

Came across driving-tests.
I came across driving-tests.org, and their process and the way they had you do the studying and the tests made the world of difference for, like, both feeling confident and then, you know, the material, but also, like, being able to discern in the question, like, what they're actually after, and finding the best possible answer. Coming to the test today after using this versus the first two times, I felt way more confident, and I think I only missed, like, three questions or four questions on all three tests that I had to take today. So I highly recommend this anyone trying to get their CDL.
H
Everything went fine the study guide was right on and i took.
Everything went fine the study guide was right on and i took test and past just like that!
A
Excellent.
Well, wasn't the first time I used driving-tests.org to prepare to write driving test exam. I used in KY to take my CDL and HME written exams and passed both excellent. This was the reason I returned driving-tests.org to prepare for GA HME endorsement. I followed driving-tests.org recommendations and went through all practice tests and was 100% ready. The written exam on 8/31/2022 was a breeze. It took me less than 10 minutes to finish. I could have obtained a 100% score but due to my own carelessness / mind laziness / arrogance, I got one question wrong. I will always recommend driving-tests.org to people. Thank you driving-tests.org!
FA
I'm in the process of getting Hazmat….
I'm in the process of getting Hazmat and Motorcycle endorsements on my license. I obviously had many choices but I felt like this was my best option. I'm using the site and website, both seem to be slightly different as to what they offer. Look carefully and if you're going to choose just one, I would probably go with website, as it has a course (video) that can be completed and results sent to DMV. I Really Appreciate That FEATURE!
JD
Very thorough.
Well written tests with hints and answers which bring an understanding that sinks in so that you remember. Very thorough videos that are packed with all the info you can stand. A learning path is laid out for you so that as you progress you can sense a mastery of the CDL profession.
Y
The #1 Driving Test Website In The Country!
Driving-tests.org is the best driving test website in the country why? Because everything on this website is explained in full detail and I love the fact that everything is in order. Unlike the very confusing drivers manuals in each state with driving-tests.org everything is in order again especially with the membership. The air brakes test, the General Knowledge Test, the combination vehicle test, and Etc is in order. The driver's manual is very confusing to have all the answers scattered out through the entire book which is ridiculous and it makes it harder for the person that studying any drivers test to pass and the DMV knows that.
MR
Awesome App.
I studied the manual and felt prepared to pass the CDL exam. I took it on 1/10/19 and failed it twice. I was discouraged but started to research online for test applications. I ran into The Driving Test app and gave it a chance. I studied the test examples for over 9 hours. Went to DMV late afternoon on 1/11/19 to retake the test and passed it on the first try. the site is simply amazing!
AG
Passed CDL-A and all endorsement's1st try:).
Driving-tests.org helped me pass my CDL-A test and all the endorsement's 1st try. The testing officer had to ask if it was even OK for me to take the CDL and all the endorsement's at the same time on only the packet. My appointment was at 3:00 and he told me they would have to shut me down by 5:00, I was done by 3:50. The officer said "WoW!" he's never seen anyone come in and pass the CDL-A test and all the endorsement's all at the same time before. He told me I must have studied. I actually felt like I had cheated because I felt like I had already seen the question's and answers before the test. What a really great study aid and program to help you pass the test, Highly RECOMMENDED!
T
I failed my first knowledge and air….
I failed my first knowledge and air brakes test for my cdl b test without this program. On my second attempt at both tests i passed no problem! This program is 100% worth it! Most of the question on the official tests are on these study guides.
A
Best practice test out there.
My first attempt after 5 days of school I only got a 75% on my state CDL general knowledge. That evening The next morning I went straight to the DMV when they opened and scored a 95% only missing 2 question. This was money well spent. If you have doubts this website is well worth the investment.
KM
Quick and easy learning.
I’ve took practice test before, but never could get the knowledge stuck in my brain. This course was repetitive and made sure you knew the difference in everything until you understood it. Quick and easy. Definitely going to recommend this to friends moving forward on trying to obtain their hazmat
H
Class A CDL with NT endorsement.
Class A CDL with NT endorsement, with your help I do appreciated it. This website has helped me understand more about how the parts work and general knowledge and with reading the CDL handbook it all came together. Im glad I payed for the subscription because when I took General Knowledge, Air, Combination, Tanker, Triple/Doubles I think I only missed about 6 question out of maybe all the questions. Should have got a perfect score.
BS
Your product was exactly as described.
I took my DMV commercial license test today and missed only 1 question on all 3 required tests. There were no questions on the DMV test that I had not already seen in some form on the practice tests. I highly recommend this course to satisfy the new commercial licensing regulations.
EW

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