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South Dakota CDL Class A Practice Test 2025

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

Welcome to our South Dakota CDL Class A Practice Test, an intuitive tool designed to help you master commercial driving theory. It includes 93 multiple-choice questions based on the official South Dakota Commercial Driver License Manual (South Dakota CDL Handbook 2025). You must score 80% or higher to pass. Unlike the official general knowledge exam, this practice test is not timed. Please avoid rushing and finish each session at your own pace.

A detailed explanation of the correct answer is provided for every question. Use this feedback to learn from your mistakes and identify areas that need improvement. Commercial driving is a complex subject that cannot be learned overnight. Your knowledge will be improved gradually over the following weeks. During this time, we recommend developing a study routine you can follow consistently.

You get unlimited attempts and nonstop access to our practice tests. They can be accessed on any device that supports a browser and has a stable internet connection. Your progress will be saved automatically as long as you’re not in private browsing mode. If you must interrupt an active session, you can resume it later. Customize your testing experience with the test settings menu. You can access this menu by clicking the three dots in the top-right corner of the page. The voice-over function can help you focus even when studying in distracting environments. Once activated, an artificial voice will read the questions and answer choices aloud.

Our South Dakota CDL Class A Practice Test can also be used for educational purposes. Beginners unfamiliar with commercial driving theory should ignore their score during the initial stages of their learning phase. You can use this intuitive tool alongside the official commercial driver license manual to improve your knowledge and study efficiently.

The Department of Public Safety (DMV) is strict about the licensing process, but we’ll help you become a safe and responsible commercial driver. Take the first step today and begin your licensing journey with the right tools.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
South Dakota CDL Class A Practice Test 2025
Commercial Driver's License
Based on official SD 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

10 min to complete
Available in EN and ES

What to expect on the actual SD permit test

50

questions

40

correct answers to pass

80%

passing score

Real South Dakota drivers who passed first try

Verified student reviews • Shared with permission

Live in South Dakota, i bought this course in order to.
I live in South Dakota, i bought this course in order to obtain my cdl and air brakes test, I studied General Knowledge and air brakes, getting 70% on most my test. I reviewed all my missed questions and only got 2 wrong on my Written Test!
K
Driving-tests.org makes passing your tests so easy!
I had been studying for my CDL learners permit test. I had used other CDL pratice test sites but none of them really helped me pass my tests. I signed up for the life-time membership to driving-tests.org and it made all the difference. I was down to my last chance to pass my CDL learners permit test because I failed my first two times. After studying the practice tests on driving-test.org over and over I was able to pass my CDL General Knowledge Test, Air-Brake Test and Combination Vehicle Test. Most if not all the questions on each test were the exact same questions that were on most of the driving-test.org practice tests which was so great. It made passing the tests so quick and easy!
D
Great investment.
This system was really worth the investment. I took 4 CDL tests in one sitting and passed them all with absolutely no problem. Had total confidence going in as the practice tests were really comprehensive and provided great explanations for the correct answers. And I didn't simply pass the tests - I really learned a lot of new things that are valuable no matter what type of vehicle you drive.
MM
I needed Hazmat and Tanker.
Best decision i made was to choose Driving-tests.org! It's very user friendly and always explains in detail, the correct answer. Several topics are not in the CDL handbook. So knowing more than what will be on the, DMV test was a welcomed surprise. Employers would appreciate knowing that too. If you get stuck the AI teacher can give you hints. So it gives a feeling of not being alone in the process. It cheers you on as well and gives boats of confidence along the way, regardless if you fail a test. The 192 question final exam, was a breeze after all!
ECJ
A great platform.
A great platform that I would recommend to anyone trying to get a Class A with endorsements. It was absolutely supplementary to the cdl manual in my studies. I was able to pass my permit test on the first try after only 1 week of study while barely skimming the manual. Thank you driving-tests.org for providing this intuitive service that maximizes efficiency by applying various teaching styles.
A

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Interactive handbook

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