🔍 Key Concepts

• Fire classification system (A, B, C, D) used in maritime firefighting • Typical fuels involved in each fire class (ordinary combustibles, flammable liquids, electrical, metals) • The special behavior of burning metals (e.g., magnesium, sodium) and why they need special agents

💭 Think About

• First, match each answer choice with the type of fuel it normally represents (what burns in class A, B, C, and D?). • Think about where you would most likely encounter combustible metal fires (for example: in engine rooms, workshops, or cargoes of certain metals). • Ask yourself: which class is reserved for unusual, high‑temperature metal fires that cannot be put out safely with water or standard foam?

✅ Before You Answer

• Be sure you know that class A involves ordinary combustibles like wood, paper, cloth. • Confirm that class B is associated with flammable liquids and class C with energized electrical equipment. • Identify which remaining fire class is specifically designated for combustible metals such as magnesium, titanium, or sodium.