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 PlansYou can set off on a new course in your driving career by adding a Hazardous Materials (HazMat) endorsement to your Tennessee commercial driver’s license (CDL). Our second free Tennessee DMV CDL HazMat endorsement practice test will get you started on developing a firm grasp of the rules and regulations you must know to succeed. Hazardous materials, such as gasoline and sodium hydroxide, can pose significant threats to people, property, and the environment if they are mishandled. Incidents involving these materials can have a significant economic impact and change the plans of tourists hoping to visit the Titanic Museum and other popular attractions. Using the practice test, you’ll receive top-notch instruction that helps you rapidly develop the skills and confidence necessary to overcome your learning obstacles.
Our Tennessee DMV CDL HazMat endorsement practice test builds upon your current knowledge level by strategically clarifying your most challenging topics. Earning a HazMat endorsement requires you to complete a HazMat theory course, undergo a Transportation Security Administration Agency (TSA) background check, and pass an official knowledge test. You can use the 30 questions on the practice test to prioritize the information you must study more to be successful. The practice test uses questions similar to those on the official knowledge test and mirrors the format of the actual test. You’ll be required to correctly answer at least 80% of the 30 questions on the official knowledge test to pass. By addressing the most crucial information standing in your way, the practice test makes it possible for you to achieve this score.
This Tennessee DMV CDL HazMat endorsement practice test sets a higher standard of effective teaching methods than traditional study guides. The main disadvantage of a study guide is that you will not receive feedback to help you correct your misunderstandings. Study guides train you to memorize the answers to the questions and make you responsible for researching the information to correct your mistakes. In comparison, the practice test provides authoritative information to expand your knowledge. The practice test is based on the most recent Tennessee DMV CDL manual (Tennessee CDL Handbook 2025) and is up to date as of November 2025. If you submit an incorrect answer, the practice test provides you with a full explanation of the correct one. You’ll be fully prepared to apply this information to various driving scenarios and increase your chances of passing the official knowledge test on your first attempt.
In addition to your HazMat endorsement, you can use our series of practice tests to further develop other driving skills. You’ll find practice tests to help you understand road signs, operate air brakes, and more.
You can safely navigate the “Smoky Mountain Rain” by developing safe driving skills with the practice tests at https://driving-tests.org/tennessee/.
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Last verified for accuracy: November 2025 (reviewed weekly)
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