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.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All PlansThe official general knowledge exam consists of 50 multiple-choice questions on various aspects of commercial driving theory. Aspiring commercial drivers must answer them all before the timer runs out. A minimum score of 80% is required to pass, leaving little room for error. On exam day, many students go to the DMV location prepared but still fail due to the pressure. They experience negative emotions such as anxiety and nervousness, which eventually impact their performance on the test.
To combat this problem, we have created the South Dakota CDL Class B Practice Test. This intuitive tool closely reflects the content and format of the official general knowledge exam, helping students prepare in advance. All 50 questions are based on the official South Dakota Commercial Driver License Manual (South Dakota CDL Handbook 2026). This comprehensive resource describes the various aspects of commercial driving theory in detail, including safe driving practices, pre-trip inspections, and the air braking system.
Federal Motor Carrier Safety Administration Provider
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“Officer Frank,” our automated assistant, will be present during your training sessions. This AI coach can provide insights and detailed explanations. Stuck on a difficult question? “Officer Frank” will nudge you in the right direction by supplying hints. (When you receive personalized help, it is easier to study and understand such a complex subject.) The questions you get wrong will be automatically added to your personal Challenge Bank™. We recommend visiting this section between your practice sessions to reinforce your knowledge and learn from your mistakes. Questions in your Challenge Bank will remain there until you answer them correctly.
For your convenience, we have omitted any timer from this practice test. Study without the pressure of a countdown and finish each training session at your own pace. Read every question twice and only select an answer when you’re confident of your choice. Please pay attention to the detailed explanation provided for each question and note it in a notebook or notebook app for future reference.
Becoming a successful commercial driver takes time and effort. Perseverance and consistency are essential throughout your learning phase, where you build the foundation for your dream career. Our South Dakota CDL Class B Practice Test can help you ace your theory exams on your first attempt, but you must stay consistent and practice daily.
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.
Driving-Tests.org is officially listed in the FMCSA Training Provider Registry (TPR) as an approved ELDT training provider.
You can verify our listing yourself at tpr.fmcsa.dot.gov - search for "Driving-Tests" in the Provider Name field, then click the "Online" tab.
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