In fire safety terms, what is a common characteristic of flammable liquids?

• A. They typically ignite at high temperatures
• B. They have a specific gravity less than water
• C. They require high pressure to become vapor
• D. They are mostly non-toxic substances

Answer: (B)

Flammable liquids are characterized by having a specific gravity less than water, which means they are lighter than water. This characteristic is important in fire safety because when flammable liquids spill, they tend to float on water surfaces, creating a distinct hazard. Their lower specific gravity allows them to easily spread over larger areas, increasing the risk of ignition and making containment efforts more challenging.

Understanding the properties of flammable liquids, including their specific gravity, is critical for safely managing spills and preventing fires. This aspect directly influences handling, storage, and safety protocols required when dealing with such materials, making it vital knowledge for those working with or around these substances.