What is meant by a "standpipe system" in a high-rise building?

A standpipe system in a high-rise building refers to a network of pipes that are installed to provide water to fire hoses on the floors of the building. This system is crucial for firefighting in high-rise structures, as it allows firefighters to quickly access water to combat fires on various levels without needing to carry large quantities of water up multiple flights of stairs.

The standpipe system typically includes vertical pipes running alongside the building, with hose connections available at each level. This setup enables firefighters to easily hook up hoses and get to work efficiently during emergency situations. Properly designed and maintained standpipe systems are essential for ensuring safety and effective fire response in tall buildings, where traditional methods of accessing water may be impractical.

In contrast, the other options presented do not accurately describe the function of a standpipe system. A hydraulic lift for fire trucks pertains to the equipment used to elevate firefighting personnel and tools, a central control unit for fire alarms is related to monitoring and managing fire detection systems, and a sprinkler system is designed for automatic fire suppression rather than directly supplying water for fire hoses.