Associate Safety Professional Practice Exam

What material is classified in Class B fire classification?

1. Wood and paper

2. Electrical equipment

3. Cooking oil and grease

4. Flammable liquids like oil and grease

The correct answer is: Flammable liquids like oil and grease

Class B fire classification is designated for fires that involve flammable liquids and gases. This includes materials such as oil, grease, gasoline, and other substances that can ignite and produce significant flames and heat when set afire. Class B fires are particularly dangerous as they can spread rapidly and be challenging to extinguish with water alone. The correct choice highlights flammable liquids, which are characterized by their ability to catch fire and burn quickly. In fire safety protocols, it is essential to have appropriate extinguishing agents, such as foam or dry chemical extinguishers, that are specifically designed for handling Class B fires. Other classifications listed do not fall under Class B. For instance, wood and paper are classified as Class A fires, which involve ordinary combustibles. Electrical equipment fires fall under Class C due to the unique hazards presented by electrical currents. Cooking oil and grease can be associated with kitchen fires but are typically categorized within Class K fires, which deal with cooking media.