In the pictograph system, which class is depicted by a flame and a metal gear?

• A. Class D
• B. Class A
• C. Class B
• D. Class C

Answer: (A)

In the pictograph system, the symbol that combines a flame with a metal object signals a fire involving combustible metals. That specific pairing is used to designate Class D fires. The metal element is the key clue, showing it isn’t a generic fire (which would be a flame with something like wood/paper for ordinary combustibles) or a flammable liquid (usually a flame with a liquid container) or an electrical fire (often shown with a plug or electrical symbol). Recognizing the metal-metallic element in the icon helps you identify that special category of fire and the appropriate, metal-fire extinguishing approach.