How are flammable liquids defined in the provided material?

How are flammable liquids defined in the provided material?

• A. Boiling point greater than 68 degrees and a flash point not more than 141 degrees.
• B. Flash point greater than 200 degrees.
• C. Boiling point greater than 100 degrees and flash point greater than 150 degrees.
• D. Boiling point less than 0 degrees and a flash point above 200 degrees.

Answer: (C)

The main idea here is how the material defines flammable liquids using two properties: boiling point and flash point. In this material, a liquid is classified as flammable only when both conditions are met: the boiling point is above 100°C and the flash point is above 150°C. This dual criterion means the liquid isn’t highly volatile at room temperature, yet it can still produce ignitable vapors when heated to the specified temperatures. Among the options, only the one with both thresholds high fits this stated definition, while the others either rely on a single property or include thresholds that don’t match the material’s criteria. For example, a very high flash point or a non-sensical boiling point would not align with the material’s approach to defining flammability.

The main idea here is how the material defines flammable liquids using two properties: boiling point and flash point. In this material, a liquid is classified as flammable only when both conditions are met: the boiling point is above 100°C and the flash point is above 150°C. This dual criterion means the liquid isn’t highly volatile at room temperature, yet it can still produce ignitable vapors when heated to the specified temperatures. Among the options, only the one with both thresholds high fits this stated definition, while the others either rely on a single property or include thresholds that don’t match the material’s criteria. For example, a very high flash point or a non-sensical boiling point would not align with the material’s approach to defining flammability.