Which is defined as a liquid having a flash point at or above 100°F?

Which is defined as a liquid having a flash point at or above 100°F?

• A. Liquid carbon dioxide
• B. Pyrophoric liquid
• C. Flammable liquid
• D. Combustible liquid

Answer: (D)

The main idea here is how liquids are classified by their flash point. The flash point is the lowest temperature at which enough vapor is produced to form an ignitable mixture with air. If a liquid has a flash point at or above 100°F (37.8°C), it’s defined as a combustible liquid. If its flash point is below 100°F, it’s considered flammable. Pyrophoric liquids, on the other hand, ignite spontaneously in air regardless of their flash point, so they aren’t categorized by this 100°F threshold. Liquid carbon dioxide isn’t described by flash-point classifications because it isn’t a flammable or combustible liquid; CO2 is non-flammable. So, the term that matches the definition is combustible liquid.

The main idea here is how liquids are classified by their flash point. The flash point is the lowest temperature at which enough vapor is produced to form an ignitable mixture with air.

If a liquid has a flash point at or above 100°F (37.8°C), it’s defined as a combustible liquid. If its flash point is below 100°F, it’s considered flammable. Pyrophoric liquids, on the other hand, ignite spontaneously in air regardless of their flash point, so they aren’t categorized by this 100°F threshold. Liquid carbon dioxide isn’t described by flash-point classifications because it isn’t a flammable or combustible liquid; CO2 is non-flammable.

So, the term that matches the definition is combustible liquid.