Which statement best describes a fixed firefighting system on ships?

• A. Mounted on a small cart and operated manually.
• B. Installed in the ship and uses agents like AFFF or CO2.
• C. A flag-based signaling system.
• D. A hand-powered water bucket.

Answer: (B)

A fixed firefighting system is built into the vessel with a network of pipes and discharge nozzles that can deliver extinguishing agents directly to protected areas. On ships, these systems use agents such as AFFF foam or CO2, allowing rapid, area-wide suppression without the crew having to move hoses or carry portable gear. This setup is what makes it a true fixed system: it is installed on the ship and designed to release the agent through fixed infrastructure.

The other descriptions don’t fit because they describe portable or improvised methods: a cart-mounted unit is a portable device, not fixed; a flag signaling system isn’t a firefighting system; and a hand-powered water bucket is an old, non-fixed method.