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CT CDL HazMat Practice Test 2 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2025 CT commercial driver's license manual
  • Triple-checked for accuracy
  • Updated for September 2025

Adding a Hazardous Materials (HazMat) endorsement to your Connecticut commercial driver’s license (CDL) qualifies you to transport additional cargo and experience increased earnings. Our free Connecticut DMV HazMat Study Guide is different from the traditional types that you may have previously used. Instead of memorizing the answers to a set of questions, you take a series of on-line practice tests to assess your knowledge and receive comprehensive instruction to better understand your most troublesome topics. It is crucial to possess a firm understanding of the rules and regulations for transporting hazardous materials to avoid the costly and severe penalties for non-compliance. Hazardous materials are subject to stringent packaging, labeling, and storage requirements. Gasoline, pesticides, and explosives are some of the materials subject to these requirements. Just as the Elm City is populated with trees that nourish the environment, you need to develop the skills to protect it.

Our second Connecticut DMV CDL HazMat endorsement practice test provides additional training to enhance your ability to safely transport hazardous materials. To earn a HazMat endorsement, you are required to complete a hazardous materials theory training program, submit to a Transportation Security Administration (TSA) background check, and pass an official knowledge test. You must answer at least 80% of the 30 questions on the official knowledge test to pass. The practice test includes 30 questions, mimicking those on the official knowledge test, to help you achieve this score.

This Connecticut DMV CDL HazMat endorsement practice test kickstarts the learning process with reliable information to overcome your learning obstacles. The practice test is based on the most recent Connecticut DMV CDL manual (Connecticut CDL Handbook 2025) and is up to date as of September 2025. If you submit an incorrect answer, you will receive a thorough explanation of the correct one to expand your knowledge. This interactive capability sets the practice test apart from traditional study methods as an encouraging and supportive resource. You’ll learn reliable information, be able to apply it to various driving scenarios, and increase your chances of passing the official knowledge test on your first try.

Using our practice tests, you will rapidly expand your skills. Each test, such as our CDL air brake practice test and our CDL pre-trip inspection practice test, uses the same format and offers an exceptional learning experience to support your success.

Drivers at Lime Rock Park race toward the finish line, and you can accelerate your acquisition of solid driving skills using the practice tests at https://driving-tests.org/connecticut/.

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CT commercial driver's license
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

About this test

5 out of 5 • 1 votes
4 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual CT DMV exam

30

questions

24

correct answers to pass

80%

passing score

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