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South Dakota CDL Class A Practice Test 2025

Average pass rate for CDL tests in South Dakota: 66%.
Average pass rate for this test: 63%.
Moderate
10 min
Score distribution:
90-100=>0%
80-89=>0%
70-79=>0%
60-69=>0%
<60%=>100%
Avg. first-try score: 34%

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.

South Dakota CDL Class A Practice Test 2025
Commercial Driver's License
Based on the official SD CDL HandbookHandbook‑based (2025) + exam‑taker feedback
1 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. ~10 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

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.

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.