Which of the following extinguisher classes does not include flammable liquids?

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

Answer: (A)

Class A extinguishers are designed specifically for ordinary combustibles such as wood, paper, and cloth. These materials ignite easily and continue to burn steadily, making them a primary focus for Class A fire safety. Flammable liquids, which are characterized by their ability to catch fire easily and burn quickly, actually fall under Class B extinguishers. Class B covers fires involving flammable liquids and gases, while Class C is meant for electrically energized equipment, and Class D is focused on combustible metals. Since flammable liquids are not classified as ordinary combustibles, they do not fall within the scope of Class A extinguishers, making this choice the correct answer. Understanding these classifications is essential for effective fire safety and response strategies.