Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Flammable gases are categorized as ____ hazards. Answers Class 1 Class 2 Class 4 Class 7 Explanation Flammable gases are assigned to hazardous materials Class 2. Take a FREE Practice Test Now This questions appears in the following tests: Colorado HazMat , Connecticut HazMat , Montana HazMat , Nebraska HazMat , Texas HazMat ,