Occupational Safety and Health Administration (OSHA) SLC Practice Exam

Which fire extinguisher can be used on any type of fire?

1. Fire Extinguisher A

2. Fire Extinguisher B

3. Fire Extinguisher C

4. Fire Extinguisher ABC

The correct answer is: Fire Extinguisher ABC

The fire extinguisher designed for use on any type of fire is typically classified as an ABC extinguisher. This type of extinguisher is versatile and effective against different classes of fires, making it suitable for most environments. Class A fires involve ordinary combustible materials such as wood, paper, and cloth. Class B fires involve flammable liquids like gasoline and oil, while Class C fires are those involving electrical equipment. An ABC extinguisher contains a combination of extinguishing agents, usually including dry chemical agents that can effectively suppress flames from all three fire classes. In contrast, fire extinguishers designated solely for Class A, B, or C fires are limited in their application and cannot be used universally. This makes the ABC extinguisher invaluable for facilities and locations where multiple types of hazards may be present, ensuring that personnel are equipped to handle various fire scenarios effectively.