When choosing extinguishers to fight a Class...

Question 1 of 2707066636eec28f7522a1c51c0cf

When choosing extinguishers to fight a Class "B" fire do NOT use which type of extinguisher?

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Question 1 of 27070

Q

When choosing extinguishers to fight a Class "B" fire do NOT use which type of extinguisher?

🔍 Key Concepts

• Class B fires involve flammable liquids like gasoline, oil, and diesel • Different extinguisher agents: water, foam, dry chemical, carbon dioxide (CO₂) • The effect of water on burning flammable liquids (spread vs. smother)

💭 Think About

• Which extinguisher types smother a fire by removing oxygen or interrupting the chemical reaction, and which can actually spread burning liquid? • Think about what happens if you spray water onto a pan of burning oil or gasoline—does it stay put or carry the fuel with it? • Which agents are specifically recommended for machinery spaces and fuel fires aboard vessels, and which are mostly for Class A (ordinary combustibles)?

✅ Before You Answer

• Verify which extinguisher types are approved for Class B fires in standard fire-fighting guidance • Consider the behavior of burning fuel when mixed or pushed by a water stream • Remember that some extinguisher types are multi‑class (A/B/C) while others are mainly Class A only