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. This questions appears in the following tests: Colorado Tank Florida HazMat Florida HazMat Indiana HazMat Massachusetts HazMat Montana HazMat North Carolina HazMat South Dakota HazMat Tennessee HazMat Texas HazMat Utah HazMat West Virginia HazMat Wisconsin HazMat