Hazardous Materials Operations Midterm Study Guide (MFRI) with correct answers 100% 2026

Hazardous Materials Operations Midterm Study Guide (MFRI) with correct answers 100% 2026 Hazardous material - Correct Answer any substance or material that is capable of posing an unreasonable risk to human health, safety, or the environment when transported in commerce, used incorrectly, or not properly contained/stored Class 1 - Correct Answer explosives Class 2 - Correct Answer gases Class 3 - Correct Answer flammable liquids (and combustible liquids in U.S.) Class 4 - Correct Answer flammable solids, substances liable to spontaneous combustion, substances which emit flammable gases upon contact with water Class 5 - Correct Answer oxidizing substances and organic peroxides Class 6 - Correct Answer toxic substances and infectious substances Class 7 - Correct Answer radioactive materials Class 8 - Correct Answer corrosive substances Class 9 - Correct Answer miscellaneous dangerous MC-306/DOT 406 - Correct Answer non-pressurized, carries liquid food-grade products, gasoline, and other flammable and combustible liquids