Which substances are associated with Class B fires?

Class B fires are specifically associated with flammable liquids and gases. These types of fires typically involve substances such as gasoline, oil, grease, and other combustible liquids. The correct answer reflects this categorization, as burnable fuels like gasoline and oil are key contributors to Class B fires.

Understanding the classification helps in effectively responding to different types of fires using the appropriate extinguishing agents. For instance, water should not be used on Class B fires, as it can spread the flammable liquid rather than extinguish the flames.

In contrast, electrical equipment, wood and paper, and household chemicals are associated with other classes of fire. Electrical equipment typically falls under Class C fires, as they involve energized electrical sources. Wood and paper are classified as Class A fires, while household chemicals may vary but are often categorized based on their specific properties and potential reactivity.