All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
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Imagine yourself in a new career on the open roads of South Dakota, tapping into the enormous job opportunities available to CDL-licensed drivers. Passing the required South Dakota CDL General Knowledge Exam on your first attempt begins with understanding exactly how the DMV structures its official tests. The official exam is made up of 50 multiple-choice questions. Each one is based on the official state CDL Manual and federal standards that govern commercial motor vehicle (CMV) operation. The state requires a passing score of at least 80% before you can be issued a Commercial Learner’s Permit (CLP) (which is required before taking the skills tests). Our South Dakota CDL Test Questions & Answers Practice Tests ensure you pass your official exam right away so you can make that imagined career a reality!
South Dakota’s exam writers often use tricky language and phrasing that can throw off even the most prepared exam takers. Those devices are intentional; they measure whether you truly understand concepts such as space management, hazard recognition, safe braking, vehicle control, and the risks linked to fatigue or improper inspections. They are designed that way to make sure you didn’t just memorize facts on a study guide while missing the underlying concepts necessary for true understanding. While many applicants use outdated PDFs, those static materials rarely reflect the way South Dakota tests each applicant. Our practice tests are designed with scientifically proven features to speed learning and increase retention.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
Your preparation should match what the state evaluates. With our practice tests, you’ll develop a conceptual understanding of safe driving, transporting cargo, transporting passengers, and how weather, terrain, and long distances shape driving decisions across the state. Whether you’re hauling through the Badlands or traveling across the long, straight roadways between Sioux Falls and Rapid City, you’ll know how to apply the safety protocols the manual teaches.
Our expert-crafted practice tests provide immediate AI-powered feedback to help you learn as you go, and our trademarked Challenge Bank repeats missed questions until you master them. Once you’ve got a handle on this practice test, try another here: https://driving-tests.org/south-dakota/sd-cdl-practice-test/.
South Dakota requires separate knowledge exams for Air Brakes, as well as for many endorsements like Combination Vehicles, Tank Vehicles, Hazardous Materials, Passenger Transport, Doubles and Triples, and School Bus operation. We have practice tests for all of these and the Pre-Trip Inspection part of your Skills Test. Check out one here: https://driving-tests.org/south-dakota/sd-pre-trip-test/.
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.
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.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
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.
We build our practice questions from the current 2026 SD Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DMV.
