All your missed questions are saved
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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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View All PlansThe Exam Simulator mimics the actual exam. It will stop once you reach the maximum number of allowed mistakes.
Without tanker drivers, Hiland Dairy would be stuck with thousands of gallons of spoiled milk. It’s a difficult thought to digest, but it presents a golden opportunity. Tanker drivers support a variety of economic sectors, providing essential goods and services to communities. By adding a tanker endorsement to your Missouri Commercial Driver’s License (CDL), you will immediately qualify to provide your services to employers needing tankers for transporting their commodities. There is an increasing demand for tanker drivers, and you can benefit from it with higher earnings and a more flexible work schedule. If you’re interested in taking advantage of this situation, your first step to claiming these perks is to get the proper training.
While you may have been less than satisfied using traditional study methods, our Missouri DOR CDL tanker endorsement practice test provides an innovative approach to learning. You must meet several requirements to obtain a tanker endorsement, and passing the official knowledge test can be a challenging one. You won’t want to count on guessing your way to correctly answering 80% of the 20 questions to pass. The practice test provides you with an assessment of your current proficiency level and identifies the information you should study more. It’s a great starting point to develop a plan to rapidly enhance your driving skills and increase your chances of passing the official knowledge test on your first attempt.
M.S., Chief Educational Researcher (ACES member)
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This Missouri DOR CDL tanker endorsement practice test equips you with a higher standard of learning that outperforms other on-line resources, including study guides. The practice test is the most effective and time-efficient study method you will find. It uses the most reliable and authoritative information available to help you create a study plan to enhance your driving skills. The practice test is based on the most recent Missouri DOR CDL manual (Missouri CDL Handbook 2025) and is up to date as of December 2025. Since it uses the CDL manual to teach you, you can place your trust in the practice test’s instruction. If you get a question wrong, the practice test cites information from the CDL manual to help you grasp the correct answer. This approach is far superior to the instruction provided by a study guide. You will only get surface knowledge from a study guide because it trains you to memorize the answers to the questions. If you want to nail down the information to pass the official knowledge test, the practice test delivers a firm foundation for building your success.
While pursuing your CDL tanker endorsement, you should consider the benefits of a Hazardous Materials (HazMat) endorsement. The HazMat endorsement is a great addition to your CDL and will expand your employment opportunities even further. Check out our HazMat tanker endorsement practice test at https://driving-tests.org/missouri/mo-cdl-hazmat-practice-test/ to learn the rules and regulations of transporting hazardous materials.
The Gateway Arch is an iconic symbol of westward expansion, and you can broaden your driving skills with the practice tests at https://driving-tests.org/missouri/.
Driver’s Ed is - nobody wants to set foot inside the DOR. 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 2025 MO 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 DOR.
The Exam Simulator mimics the actual exam. It will stop once you reach the maximum number of allowed mistakes.
