Which statement about CMWS supply is correct?

• A. It is supplied by the Fire-Main System
• B. It is supplied by the Electrical System
• C. It is supplied by the Fuel System
• D. It is supplied by the Cooling System

Answer: (A)

CMWS is a water-based distribution that relies on a pressurized seawater source, so it is supplied by the Fire Main system. The fire main provides the large-volume, high-pressure water needed for firefighting and related damage-control duties, making it the appropriate feed for CMWS. Other systems don’t supply water in that way: the electrical system provides power, the fuel system delivers fuel, and the cooling system handles heat rejection through its own loops. In other words, CMWS taps into the ship’s fire-main network to ensure a ready, pressurized water supply for its operations.