Which class of fire is associated with ordinary combustibles?

Which class of fire is associated with ordinary combustibles?

• A. Class B - Flammable liquids
• B. Class A - Ordinary combustibles
• C. Class C - Electrical
• D. Class D - Combustible metals

Answer: (B)

Fires fueled by ordinary combustibles are categorized as Class A. These fuels include everyday materials like wood, paper, cloth, and other items that burn with a visible flame and leave ash after burning. The extinguishing approach for these fuels focuses on cooling the fuel below its ignition temperature and preventing further heat transfer, with water being a common and effective choice. Class B covers flammable liquids such as gasoline and solvents. Class C involves electrical equipment where energized current is present. Class D deals with combustible metals like magnesium or titanium that require special agents.

Fires fueled by ordinary combustibles are categorized as Class A. These fuels include everyday materials like wood, paper, cloth, and other items that burn with a visible flame and leave ash after burning. The extinguishing approach for these fuels focuses on cooling the fuel below its ignition temperature and preventing further heat transfer, with water being a common and effective choice.

Class B covers flammable liquids such as gasoline and solvents. Class C involves electrical equipment where energized current is present. Class D deals with combustible metals like magnesium or titanium that require special agents.