🔍 Key Concepts

• Fire classification categories (A, B, C, D) and what type of fuel each one represents • The special behavior of burning metals, including how they react to water or standard extinguishing agents • Typical examples of metal fires found in maritime or industrial settings (e.g., magnesium, titanium, aluminum shavings/powder)

💭 Think About

• First match each fire class (A, B, C, D) with its correct fuel type: ordinary combustibles, flammable liquids, electrical equipment, or combustible metals. • Think about how aluminum behaves when it is in powder form and catches fire—does it act more like wood/paper, gasoline, electrical equipment, or burning metal? • Ask yourself which fire class needs special extinguishing agents (like dry powder for metals) rather than water or foam.

✅ Before You Answer

• Be sure you know that Class A is ordinary combustibles (wood, cloth, paper, etc.), and Class B is flammable liquids and gases. • Confirm that Class C is defined by the presence of energized electrical equipment, not by the fuel itself. • Identify which class specifically covers combustible metals such as magnesium, titanium, sodium, and aluminum (especially in powder or shavings form).