🔍 Key Concepts

• Classes of fires (Class A, B, C, D) and what materials they involve • Which fire classes standard dry chemical extinguishers are normally rated for on vessels • How electricity and flammable liquids react to dry chemical agents

💭 Think About

• First, match each option (electrical, paint, burning oil) to its fire class (A, B, or C). Which classes does a typical dry chemical extinguisher cover? • Consider whether dry chemical is non‑conductive, and whether it can smother flammable liquid fires like oil or paint. • Ask yourself: if an extinguisher is rated for multiple fire classes, would that limit it to just one type listed, or more than one?

✅ Before You Answer

• Verify that dry chemical (not CO₂ or foam) is commonly rated for Class B and Class C fires, and often Class A as well. • Confirm that electrical fires are Class C and flammable liquids (like oil and many paints) are Class B. • Check the extinguisher label logic: if one extinguisher is suitable for both Class B and C, what does that imply about the choices given?