A Class 7 hazardous material is: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Michigan Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance. Click here to compare rates from our insurance partner. Question A Class 7 hazardous material is: Answers Explosive. Flammable. Radioactive. Corrosive. Explanation Radioactive materials are categorized as Class 7 hazardous materials. This questions appears in the following tests: Alabama HazMat Arkansas HazMat Delaware HazMat Delaware Tank Florida HazMat Georgia HazMat Massachusetts HazMat Minnesota HazMat Montana HazMat Nevada HazMat New Hampshire HazMat New Jersey HazMat New Jersey HazMat New York HazMat New York HazMat North Carolina Tank Pennsylvania Tank Tennessee HazMat Wyoming HazMat