Standpipe systems, used by firefighters inside a building, include which of the following as a standpipe component?

• A. Fire pumps
• B. Standpipe outlets
• C. Smoke detectors
• D. Check valves

Answer: (B)

Standpipe systems inside buildings are installed so firefighters can quickly access water. The component that makes this possible for the firefighters is the standpipe outlet—the wall connection where a hose can be attached and water delivered into the standpipe. These outlets are tied to the vertical standpipe riser and are what crews open to release water onto the fire.

Other items listed aren’t the parts firefighters directly use to deliver water from a standpipe: pumps may provide the necessary pressure, smoke detectors belong to the building’s fire alarm system, and check valves help prevent backflow in the piping. But the outlet is the standpipe component that firefighters connect to and deploy water from.