🔍 Key Concepts
• Fire classes (A, B, C, D, K) and what type of fuel each one involves
• The special hazards and extinguishing agents used for combustible metal fires
• Why water or standard foam can be dangerous on certain types of fires
💭 Think About
• First, recall what materials are covered under Class A, B, and C fires, then identify which option does NOT belong to those classes.
• Think about which choice would require special dry powder extinguishing agents instead of water, foam, or CO₂.
• Ask yourself: Which of these materials can react violently with water or produce very high temperatures when burning?
✅ Before You Answer
• Be sure you know: Class B = flammable liquids (e.g., diesel oil, gasoline, oils).
• Confirm that Class C = energized electrical equipment, not the solid materials themselves.
• Verify that Class D = combustible metals, and look for the option that is clearly a metal rather than wood, paper, liquid fuel, or insulation.