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South Dakota CDL General Knowledge Test 10 2025

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

Updated for December 2025, this South Dakota General Knowledge practice test contains another 50 questions based on the official CDL (Commercial Driver’s License) manual. You can use this test to prepare for the General Knowledge portion of the SD CDL exam. These questions are multiple-choice, with three possible answers for each question. Only one of those answers is correct. If you’re not sure about the correct answer, you can use the hint provided for each question. Each hint points you to the correct answer without giving away the correct answer itself. This should allow you to make an informed decision about the correct answer, even if you don’t actually know it. There is no time limit for completing this practice test. 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.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
South Dakota CDL General Knowledge Test 10 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)
Verified for accuracy December 2025
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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