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  • 0  (10 mistakes allowed to pass)

SD CDL General Knowledge Exam Simulator 2025

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

In South Dakota, federal and state laws mandate pre-trip inspections. They are designed to ensure that your vehicle is safe to operate, so you must be able to thoroughly inspect various vehicle components. The official South Dakota commercial driver license manual (South Dakota CDL Handbook 2025) describes pre-trip inspections and other aspects of commercial driving in detail. All 50 questions on the official CDL General Knowledge (permit) test are based on this manual, which covers everything you need to know to pass the test and safely operate a commercial vehicle. However, the most determined students favor online tools over traditional study methods.

Adopt a similar approach and boost your learning potential with the help of our South Dakota CDL General Knowledge Exam Simulator. This intuitive tool lets you simulate the official testing experience on your device anytime, anywhere in the world. You get nonstop access and unlimited attempts to simulate as many sessions as you wish. This simulator has limited features, and you will not receive assistance. You must score 80% or higher to pass; if you make too many mistakes, the test ends immediately. Do not get discouraged if you fail. Instead, you should visit your personal Challenge Bank™ to identify areas that need improvement and learn from your mistakes. Use our other CDL practice tests to fill any knowledge gaps. When you’re ready, return to this simulator to see if you’re prepared to pass the official exam on your first attempt.

Becoming a safe and responsible commercial driver takes more than a passing score. You must master this subject before you are issued a CDL. When you’re hauling hazardous materials or driving a bus full of passengers, even small mistakes can have serious consequences. That’s why employers only hire professional commercial drivers who take their jobs seriously. As a beginner, you’ll stand out with your comprehensive knowledge before you can get any behind-the-wheel experience. Start today and train with our simulator for a few weeks. With time, you’ll watch your score naturally increase as you build your knowledge.

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
Commercial Driver's License
Based on official SD exam questions
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to South Dakota

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

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

5 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

We know what it takes to pass. And we’ve got the proof.

Driver’s Ed is - nobody wants to set foot inside the DMV. That’s why millions of learners trust us for simple, visual, effective prep.

An official & trusted partner in driver education

We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.

A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.