The minimum flash point of #2 fuel oil is 100 F. This statement is:

The minimum flash point of #2 fuel oil is 100 F. This statement is:

• A. True
• B. Not enough information
• C. False
• D. Depends on grade

Answer: (A)

Flash point is the lowest temperature at which a liquid’s vapors can ignition-source-ignite with air. The line between flammable and combustible liquids is drawn at 100 F: below 100 F is flammable, at or above 100 F is combustible. No. 2 fuel oil is a heating oil/diesel-type fuel and, by safety classifications, has a flash point at least 100 F (usually higher). So saying its minimum flash point is 100 F matches that classification, making the statement true. The exact flash point can vary by batch or grade, but the threshold used for safety labeling is 100 F, which is why this statement is considered correct.

Flash point is the lowest temperature at which a liquid’s vapors can ignition-source-ignite with air. The line between flammable and combustible liquids is drawn at 100 F: below 100 F is flammable, at or above 100 F is combustible. No. 2 fuel oil is a heating oil/diesel-type fuel and, by safety classifications, has a flash point at least 100 F (usually higher). So saying its minimum flash point is 100 F matches that classification, making the statement true. The exact flash point can vary by batch or grade, but the threshold used for safety labeling is 100 F, which is why this statement is considered correct.