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CDL Practice Test

At TruckingTruth we specialize in preparing you for a great start to your trucking career and our CDL Practice Test Questions are an awesome way to get ready for your written CDL exams.
We've put together 565 challenging multiple choice questions straight out of the CDL manual covering the CDL permit exam and all of the endorsement exams. Each question includes a snippet from the CDL manual containing the answer, and as an added bonus we threw in some helpful advice from experienced drivers along the way. These practice questions will certainly challenge you and test your knowledge of the CDL manual. If you can do well on these questions, you're definitely ready for the CDL exams.

The key things we focused on when building this app were speed, simplicity, and a friendly user interface. Fire up this app anytime you have a few moments to spare and get in some quality repetitions. Waiting in line at the grocery store? Commercials on TV? Fire it up and rifle through some questions while you're waiting. It's the perfect way to sharpen your memory without having to set aside time out of your day to do it.

Start out by choosing the category you'd like to work on. The categories are:

Rules & RegulationsDriving SafelyTransporting Cargo SafelyTransporting PassengersAir BrakesCombination VehiclesDoubles And TriplesTankersHazardous MaterialsPre-Trip InspectionDriving Exam

You'll then be given a set of 5 questions from that category. Each set of questions is chosen at random and the order of the questions is shuffled. The multiple choice answers for each question are also shuffled so there's no way to know which questions you'll receive or what order the answers will be in. You'll simply have to learn the correct answers!

Finally, each of the questions is scored immediately upon answering them. If you were incorrect, the correct answer will then be highlighted. So you won't have to wait until the end to find out how you did. You'll get immediate feedback and be able to review the ones that are giving you problems right there on the spot.

This app is a simple and effective way to prepare for your CDL exams and works equally well on your Android phone or tablet.

Please note: Although many of these questions may appear on your official CDL exam, at least with similar wording, nobody has the actual questions you will be given on your state exams. What this app is intended to do is help you test and reinforce the knowledge you already have.

Trying to simply memorize these questions to pass the CDL exam is not the proper approach to take. If you need to learn the materials in the CDL manual, we have a free online training program at http://www.truckingtruth.com/cdl-training-program/ called "The High Road Training Program". It has the entire CDL manual built in and will teach you the materials. These practice questions are meant to be a study aid to test and reinforce the knowledge you already have so please do not try to cut corners by using this app as your only study tool.

We welcome your feedback. Please email [email protected] with any questions or requests you may have.

Category : Education

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Reviews (30)

sah. s. Feb 27, 2020     

Has wildly different answers from Trucking Truth's manual. Ex: the numbers for perception, reaction and stopping time and distance are completely different resulting in a total stopping distance of 419' in the manual and 290' in the app. Who knows what other information is different, even though the website and app were supposedly made by the same people. (Additionally, the CA handbook also states 419 is correct in that example, making the app more questionable)

Jus. Jan 16, 2019     

Awesome CDL practice app. It helped me get my CDL 5 years ago, and has helped me get my X endorsement throughout my career. Get this app!

A. G. u. Oct 13, 2018     

This app is awesome !! Gives questions... answers ...cdl manual answers ...and advice from real truckers.

E.. S. Oct 26, 2018     

Just passed my hazmat renewal with the help of this app...highly recommended! Thanks!

edw. m. Nov 10, 2019     

This app is awesome. I got my hazmat, DT and tanker endorsements on the first try because of the prep in this app.

Ken. A. Apr 16, 2019     

Good test questions, will help you pass.

Man. Oct 10, 2018     

The Best CDL app

F. P. Nov 7, 2014     

I have passed my California written exams thanks to this app, but I found their website to be a lot more useful. Just sign up for a free account and the study is better over there. Thank you very much and I will recommend your services to anyone who wants a cdl.

Ada. M. Jan 3, 2017     

Trucking Truth is hands down the gold standard for onoine trucking communities. The staff care about two things, the truth about the industry and you as a driver. This app is a handy android version of their High Road CDL Training Program they host free of charge on their website. Without a doubt one of the best things you can use to prepare yourself for the test. I also highly recommend getting on their forums and introducing yourself. It's a great source of comradery, information, and hard truth.

Wen. C. Apr 4, 2015     

Read through the reviews and I have to say after playing with the app the questions have the same answer as my Nevada manual except phrased differently. Having already done cdl b testing including air brakes and passenger. I can also say the same answers to questions I already passed once with. I am a tad ocd did every online practice out there. Now that I am going for my a with all endorsements gotta hit the books and tests hard. Thanks for the app. Hopefully by the end of the month i am another trucker lo

Fer. F. Apr 4, 2015     

It helped me pass my air brake exam but not my general knowledge. I'm not sure if this app is up to date because there were a lot of questions on the dmv general knowledge exam that weren't on this app. I tried twice in a row hoping to get some repeat questions but only 2 questions were repeats from the first attempt. :(

Kar. L. Mar 2, 2014     

Ok I only studied from this app only and I passed general knowledge and airbrakes. I failed combo twice then decided to read the dmv manual and then passed. Pretty good app all in all. Thanks for makeing it and thanks for my cdl class a permit.. Also its the rhode island test I was takeing.

jac. k. Jan 2, 2014     

I am new to commercial driving and while reading the manual I had a hard time remembering all the little details. After doing these tests until continuously scoring 100s I was very confident in my knowledge of the operational standards of commercial vehicles. Thank you so much. Its very cool that you dont charge for this app.

Hoo. H. Dec 29, 2015     

Thank you guys ! I passed my California CDL written test thanks to this app. As for the crybabies saying they failed. ..COMMON SENSE TELLS YOU TO READ YOUR STATE'S DMV BOOK! READ YOUR BOOK TWICE AND USE THIS APP! I'M taking truck test part in March.

Eri. R. Apr 15, 2014     

For the Washington state book it says no more than 3psi loss for single vechiel and no more than 4psi in combination vechiels in one minute for the air brake quiz, so may not be accurate for Washington state, still a good study app.

Ale. J. Nov 8, 2014     

PA State CDL trainee here and it's working for me and my friends. Is there any way to extend each test? An option to go from 5-10-15-20 questions and such to challenge us more and make it less likely to get repeat questions. Thank you very much.

Jet. L. Aug 4, 2015     

Been a driver since 86 and this is nice when I'm sitting still here and there. So much you can forget. So much to catch up on.

Jam. L. May 6, 2016     

Thank you guys so much for making this app free, it is the best app I found in the market. I tried so many, there were some other good one out there but only let you do one test before they charged. Other free apps had miss information. I love how your questions have clips from the book at bottom of page so you can reference back if you hit a problem. I'm in AZ, and nearly every question on my test was covered by your app

Kas. S. Jan 13, 2016     

A good amount of questions that are marked right on this app are considered wrong on the test I have to take in Maryland. Enough to cause me to fail.

tyr. b. Oct 3, 2013     

Shouldn't have spent my money going to school, I should have just came here. Great job Brett.

Aar. G. May 19, 2016     

Used this app to when I was studying for my Class A, really came in handy. Sending it to a friend hoping it could be of use to him as well

Mik. J. Oct 7, 2015     

I used this app to study for the cdl permit test. I passed general knowledge, air brakes and combination on the first try. It has a lot of the same questions as on the test. The explanations also increase your understanding of everything which helps with the questions not covered in this app. Thanks brett!

Tyl. L. May 4, 2014     

Some of the test questions they very obviously have the wrong answer marked as right. For sure on the hazardous materials section. Otherwise its a great app.

A. G. u. Dec 12, 2013     

Thanks Brett for all that you do to help us (newbees). I enjoy your website and blog. Your information that you give has helped me understand more about how truck driving is more of a career and not a job. Thanks again.

jua. c. Sep 20, 2016     

I give u 5 stars cause I use this CDL test app even on my time in school my teacher tell us about u and trucking thrut everything is great I just wish you have a "TRUCKING THRUT APP" the world need it THANKS...Keep the good work

A. G. u. Dec 30, 2013     

This is a great study tool with explanations for the answers. The questions were not exactly the same as the MT CDL test but there was enough information to pass. This app doesn't snoop personal information so it is a 5 star app.

Dav. O. Oct 31, 2014     

I used this to study for my air breaks test in California and it gave me enough knowledge to pass. I'll see how it works for the passenger endorsement and the rules in regs pretty soon.

Fre. C. Apr 21, 2015     

It would be great if there were more than just 5 questions per section. . Other than that it's a good app

CRE. Sep 2, 2014     

Trucking truth has to be the best Internet site for cdl and trucking help out there and he doesn't charge a dime. God bless you.

Ste. W. Oct 18, 2015     

Good app when it works but not sure if the problem is the app or my tablet. When it is working the app is really easy to use but freezes up alot.