How does foam extinguish an oil fire?

Question 1 / 2707066636eec28f7522a1c51c35a

Question 1 of 2707066636eec28f7522a1c51c35a

Question 1 of 27070

How does foam extinguish an oil fire?

🔍 Key Concepts

• Foam fire extinguishing agents and how they behave on liquid (Class B) fires • The fire triangle: fuel, heat, oxygen • What happens when foam is applied gently on top of burning oil or gasoline

💭 Think About

• Think about what foam physically does when it lands on the surface of burning oil. Does it sink, mix in, or form something on top? • Which part of the fire triangle is foam mainly designed to affect in an oil fire: fuel, heat, or oxygen? • If the oil is still present but covered with foam, has the fuel really been removed from the fire?

✅ Before You Answer

• Visualize whether foam mixes with the oil or floats on top of it • Decide if oil fires are usually put out by cooling or by separating the burning surface from the air • Confirm whether the fuel (oil) remains in place after foam application, just under a protective layer

Question 1 of 27070

How does foam extinguish an oil fire?

By cooling the oil below the ignition temperature

By increasing the weight of the oil

By removing the fuel source from the fire

By excluding the oxygen from the fire