What is a standpipe system used for in a building fire?

• A. To provide water supply for interior firefighting operations and reach upper floors or remote areas.
• B. To ventilate attic smoke
• C. To irrigate landscaping
• D. To supply electrical power to extinguishing systems

Answer: (A)

Standpipe systems are installed to bring water inside a building where firefighters are working, so they can connect hoses and attack a fire from within. They are especially valuable for reaching upper floors or remote areas where using exterior hydrants or long hose lays would be difficult or impractical. The system ties into the building’s water supply and provides outlets at various levels so crews don’t have to rely on carrying all water from outside. This matches the idea of supplying a ready, accessible water source for interior firefighting and for accessing higher or hard-to-reach areas.

The other options describe functions outside the scope of standpipes: ventilating attic smoke is a ventilation tactic, irrigation is unrelated to fire protection, and supplying electrical power to extinguishing systems is not a function of a standpipe.