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 PlansYour appetite for chislic may only be rivaled by the professional driving skills you crave. Using our practice test series, you can fully understand the rules and regulations for pulling multiple trailers. Adding a “T” endorsement to your South Dakota commercial driver’s license (CDL) can open up your career opportunities and increase your earnings. However, you need to be trained by a credible source. With our third free South Dakota DMV CDL Double/Triple Trailer endorsement practice test, you’ll gain access to an effective study method designed to meet your personal learning objectives. The practice test gives you the advantage of learning essential information from an authoritative source. It’s the fastest way of acquiring the essential skills for your success.
Capturing your specific learning obstacles, our South Dakota DMV CDL Double/Triple Trailer endorsement practice test helps you develop a plan to overcome them. It is important that you address your misunderstandings to pass the official knowledge test required to receive your endorsement. The practice test contains 20 questions, like the ones on the official knowledge test, to identify the information you should study more. This approach allows you to make an effective and time-efficient study plan for correctly answering at least 80% of the 20 questions on the official knowledge test required to earn a passing score.
This South Dakota DMV CDL Double/Triple Trailer endorsement practice test uses an interactive teaching method to help you absorb critical information. If you get a question wrong, the practice test responds with a thorough explanation of the information you must know. You are provided immediate access to this information and won’t waste valuable study time consulting additional resources. The practice test is based on the most recent South Dakota DMV CDL manual (South Dakota CDL Handbook 2025) and is up to date as of November 2025. By referencing the CDL manual, the practice test guarantees the information provided is accurate and applicable to various driving scenarios on the official knowledge test. The practice test will equip you with superior driving skills, making it possible to pass the official knowledge test on your first try.
Belle Fourche is near the “Center of the Nation,” and you can develop core professional driving skills using the practice tests at https://driving-tests.org/south-dakota/sd-cdl-practice-test/.
Chief Educational Researcher (ACES member)
Methodology & Editorial Policy
Last verified for accuracy: November 2025 (reviewed weekly)
questions
correct answers to pass
passing score
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.
