Which type of standpipe system relies solely on the fire department connection to meet system demands?

The correct choice indicates that a manual standpipe system relies solely on the fire department connection (FDC) to meet the demands of the system. In this context, a manual standpipe system is designed for use by firefighters who connect hoses directly to the FDC to draw water from an external source, typically the municipal water supply. This system does not have built-in pumps or an internal water supply; instead, it expects the firefighters to operate the system manually during an incident.

Understanding this concept is important because it highlights how various standpipe systems function differently based on their design and operational strategies. In contrast, automatic standpipe systems typically include pumps that can pressurize the water supply, allowing for immediate water flow without the need for manual intervention. Hybrid systems might incorporate both manual and automated features, while electronic standpipes may use technology to control water flow but do not define the reliance on fire department connections as explicitly as the manual system does. Thus, recognizing the characteristics and operational dependencies of manual standpipe systems is crucial for effective fire response and safety protocols.