🔍 Key Concepts

• Fire classification system used on ships and in maritime regulations • Materials that make up Class A, Class B, Class C, and Class D fires • Typical examples of metal fires and how they are treated differently from ordinary combustibles

💭 Think About

• First, match aluminum powder to the general type of material it is (ordinary solid, flammable liquid, energized electrical, or combustible metal). • Think about which fire class involves burning metals such as magnesium or sodium, and ask whether aluminum powder behaves more like those or like wood, fuel, or wiring. • Recall which class of fire requires special dry powders and must NOT be fought with water or standard foam extinguishers.

✅ Before You Answer

• Identify whether aluminum powder is a metal, a liquid, an electrical load, or ordinary combustible solid in this context. • Review which class is specifically defined for combustible metals in your study materials or NFPA-based charts. • Confirm which extinguishing agents are recommended (special dry powder agents) and match that to the correct fire class label.