Which symbol identifies extinguishers suitable for Class A fires?

Which symbol identifies extinguishers suitable for Class A fires?

• A. Blue Circle
• B. Red Square
• C. Green Triangle
• D. Yellow Star

Answer: (C)

Identifying extinguishers for a fire class relies on quick-symbol cues. For Class A fires—ordinary combustibles like wood, paper, textiles—the symbol you look for is a green triangle. That marker signals the extinguisher contains an agent appropriate for cooling and smothering these fuels, such as water-based or dry chemical formulations designed for ordinary combustibles. The other shapes shown—blue circle, red square, yellow star—are not used to mark Class A extinguishers in this system; they correspond to other classes or aren’t used to designate Class A at all. Using the green triangle symbol helps responders choose the right tool quickly and reduces the risk of using an unsuitable agent on an ordinary combustible fire.

Identifying extinguishers for a fire class relies on quick-symbol cues. For Class A fires—ordinary combustibles like wood, paper, textiles—the symbol you look for is a green triangle. That marker signals the extinguisher contains an agent appropriate for cooling and smothering these fuels, such as water-based or dry chemical formulations designed for ordinary combustibles. The other shapes shown—blue circle, red square, yellow star—are not used to mark Class A extinguishers in this system; they correspond to other classes or aren’t used to designate Class A at all. Using the green triangle symbol helps responders choose the right tool quickly and reduces the risk of using an unsuitable agent on an ordinary combustible fire.