Which is the correct list of the three physical states of matter for fuels?

Which is the correct list of the three physical states of matter for fuels?

• A. Liquid, Gas, Plasma
• B. Solid, Liquid, Gas
• C. Gas, Solid, Plasma
• D. Plasma, Solid, Liquid

Answer: (B)

Fuels exist in three common physical forms: solid, liquid, and gas. Listing these covers the typical ways fuels appear in real-world firefighting scenarios—solid fuels like wood or coal, liquid fuels such as gasoline or diesel, and gaseous fuels like natural gas or propane. Plasma is a highly energized, ionized state that occurs only at extreme temperatures, not a standard form for fuels in interior attack practice, so it isn’t included among the normal fuel states. The other options either include plasma or omit one of the three main states, which is why they aren’t correct.

Fuels exist in three common physical forms: solid, liquid, and gas. Listing these covers the typical ways fuels appear in real-world firefighting scenarios—solid fuels like wood or coal, liquid fuels such as gasoline or diesel, and gaseous fuels like natural gas or propane. Plasma is a highly energized, ionized state that occurs only at extreme temperatures, not a standard form for fuels in interior attack practice, so it isn’t included among the normal fuel states. The other options either include plasma or omit one of the three main states, which is why they aren’t correct.