- Updated for January 2025
- Based on 2025 CT commercial driver's license manual
Free Connecticut CDL HazMat Practice Test 2025
From the freedom of the rolling hills and coastal lowlands to the busy urban traffic, you’ll get a real taste of country and city life while driving through Connecticut. You’re here, so you must be considering adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL). That’s smart thinking as you can increase the marketability of your CDL and potentially increase the size of your bank account. The Hazmat endorsement permits drivers aged 21 and over to transport materials that the U.S. government has deemed hazardous. If you don’t have the endorsement, you are cut off from an entire class of cargo transport!
Once endorsed, you can transport cargo such as explosives, certain types of fuel, industrial chemicals, radioactive materials, and infectious substances. We can hear you: “Am I supposed to feel good about hauling radioactive material?” Rest assured that the most important objective of this endorsement process is to ensure your safety and protect the people and environment in your driving area.
First, you’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check. That’s just step one. Step two is passing the DMV knowledge test. The knowledge test covers federal regulations, substance handling, and a host of other topics. Connecticut’s knowledge test is made up of 30 questions and must be passed with a score of at least 80% (24 out of 30 answers must be correct) (Connecticut CDL Handbook 2025).
Let’s get back to the potential income increase available. After all, isn’t that the point? In the Constitution State, there are multiple industries that require a Hazmat endorsement to haul chemicals used in manufacturing, gasoline, propane, pesticides, and materials associated with the state’s large pharmaceutical and healthcare industries. Pfizer (Groton), General Electric (Fairfield), and Yale New Haven (North Haven) are just some of the companies that require hazmat-holding drivers. Lucrative, right? Check out how we’ve streamlined the process.
Our online DMV Connecticut CDL Hazmat Endorsement practice tests are designed to avoid all the extraneous information you’ll come across. We go straight to the relevant material and mirror the official DMV test. Apply for your fingerprinting and background check. Then, while you wait, study with our practice tests. Once you receive the results and feel prepared, visit the DMV with the necessary documents, pay the fees, and take the test.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual CT DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- Which of the following materials are acceptable floor liners for transporting Division 1.1 or 1.2 materials?
- How often should you check the tires on a placarded trailer that has dual tires?
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from a bridge, tunnel, or building?
- A safe haven is
- When shippers package the material, they are trying to
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- In what location must you keep your shipping papers that describe any hazardous materials?
- Cargo tanks are
- What is the purpose of a driver placarding his or her vehicle?
- Which of the following are necessary qualifications for non-bulk packaging?
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
- What is a technical name?
- A placarded vehicle must carry a fire extinguisher with a minimum rating of
- To determine if you need to use placards, you do NOT need to know
- Which of the following hazard classes uses a transport index to determine how much of it can be loaded on a single vehicle for transport?
- What are the major differences between cargo tanks and portable tanks?
- You must NEVER smoke or perform any activity involving fire within 25 feet of
- Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
- Where are the two main places that the hazardous material identification number appears?
- The Emergency Response Guidebook (ERG)
- Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
- If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?
- If an "X" or an "RQ" is in the HM column of a shipping paper entry, then
- You may not park a vehicle carrying explosives within _____ feet of an open fire.
- In the Hazardous Materials Table, the hazardous material identification number for each hazardous material is found in
- If there is an accident involving hazardous materials, who reports it to the proper government agency?
- NO ONE may smoke within 25 feet of any vehicle that contains explosives, oxidizers, or
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