🔍 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?