Which firefighting system provides water to hose lines on multiple floors of a building?

• A. Wet-pipe sprinkler system
• B. Deluge system
• C. Standpipe system
• D. Foam firefighting system

Answer: (C)

Standpipe systems are designed to deliver water to hose lines on multiple floors, allowing firefighters to quickly deploy attack lines where they’re needed throughout a building. They run vertical piping with hose outlets on each floor or in stairwells, so crews can connect hoses and access water on higher levels without dragging long hose lines from ground level. These systems can be wet (pipes filled with water) or dry (pipes normally empty and pressurized when water is released), and are specifically installed to support multi-floor firefighting operations.

Wet-pipe sprinkler systems, by contrast, are aimed at automatically releasing water to sprinklers in ceilings, not providing hand-held hose lines on every floor. Deluge systems open all heads when activated, supplying water to all heads rather than a controlled standpipe network for hoses. Foam systems mix foam concentrate with water for specialized scenarios, and aren’t focused on supplying hose lines across multiple floors.