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South Dakota CDL General Knowledge Test 8 2025

Average pass rate for CDL tests in South Dakota: 66%.
Average pass rate for this test: 83%.
Easy
7 min

This South Dakota General Knowledge practice test contains another 50 questions based on the official CDL manual. All questions have been updated for December 2025. These questions are designed to prepare you for the General Knowledge portion of your South Dakota Commercial Driver’s License exam. They are multiple-choice and offer three possible answers for each question. Only one of those three answers is correct, so choose carefully. If you’re not sure about the correct answer, you can use the hint provided for each question. As you work your way through these questions, you’ll begin to notice that the hint will point 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. 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. Our CDL practice tests are not timed, so you can take as long as you need to answer each question. Good luck!

South Dakota CDL General Knowledge Test 8 2025
Commercial Driver's License
Based on the official SD CDL HandbookHandbook‑based (2025) + exam‑taker feedback
28 tests completed today

Accuracy & authorship

Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Reviewed for legal and handbook accuracy:

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Andrei Zakhareuski, Co-founder & CEO at Driving-Tests.org

Test design and learning experience oversight:

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the South Dakota DMV changes its handbook or website information.

Official sources we check: South Dakota CDL Handbook (2025 edition), South Dakota DMV website

How to use this practice test

  1. Start here. One of 4 free South Dakota tests. ~7 min. Read explanations as you go.
  2. Cover more ground. All tests have different questions - no repeats.
  3. Finish strong. Try the Exam Simulator for a full-length run.

Why this works

  • Exam-like questions from the current handbook + real test-taker patterns. Explanations cite the manual.
  • AI Assistant explains tricky items in plain language.
  • Performance Insights show your weak topics and what to study next.
  • Challenge Bank™ saves your mistakes for targeted practice.

Actual DMV permit test: What to expect?

The South Dakota permit test has 50 questions. You must get 40 correct (80%) to pass.
  • Where: Any South Dakota DMV office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake the next day.
  • Commonly missed: headlight usage and when to turn them on, roundabouts and lane usage.
  • Ready to schedule? Book your SD DMV appointment

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

About the South Dakota CDL

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