Engine powered lifeboats have a fire extinguisher at each end used to extinguish which classes of fires?

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The key idea here is recognizing which fires are most likely in an engine-powered lifeboat and choosing an extinguisher that can handle both scenarios. In the engine space, you’re most concerned with fires involving flammable liquids (fuel, oil) and fires in energized electrical equipment. A Class B extinguisher targets flammable liquids, while a Class C extinguisher is designed for electrical fires. In a small, enclosed lifeboat, you want one extinguisher that can safely address either risk, and having them at both ends ensures quick access no matter where the fire starts.

So the best option combines both classifications: it covers fuel and oil fires as well as electrical fires. That’s why Class B and Class C is chosen. The alternative focuses on only one type of risk (solid combustibles or electrical alone) and wouldn’t be adequate for the common engine-room hazards. In practice, these extinguishers are often ABC rated, suitable for multiple fire types.