In high-rise firefighting, how do standpipes and water supply strategies support interior operations?

• A. Maximize pump capacity and use standpipes.
• B. Shut down standpipes.
• C. Use only exterior hydrants.
• D. Ignore water pressure.

Answer: (C)

In high-rise firefighting, interior water supply through standpipes is essential to support attack teams on upper floors. Standpipes bring water directly to each level, giving firefighters a ready source to connect hoses where the fire is, which keeps nozzle pressures stable and allows quicker, safer suppression.

Relying on exterior hydrants alone isn’t enough because water pressure and flow diminish with height and distance. Long lays from street hydrants to upper floors can’t reliably deliver the needed volume or pressure, especially as the fire grows or multiple lines are in use. A solid strategy pairs the building’s standpipe system with a robust water supply plan—likely involving pumper operations, relay or shuttle pumping, and coordination with the building’s valves and connections—to guarantee continuous, adequate water to the interior crews.

So, the concept is that standpipes, supported by a well-managed water supply strategy, are what enable effective interior fire attack in a high-rise.