Which term describes the pressure in the system when water is being discharged by the pump?

Discharge pressure refers to the pressure in the system when water is actively being discharged by the pump. This pressure is critical for understanding how effectively the pump is delivering water to the fire incident or operational scenario. It is measured at the discharge side of the pump and is affected by various factors, including the elevation of the discharge point and any friction losses in the hoses or piping used during the discharge operation.

In fire service operations, having accurate knowledge of discharge pressure is essential for ensuring that firefighters can effectively deliver water to a fire scene with sufficient force to combat the flames. It allows for adjustments in operations if necessary, such as increasing or decreasing the flow of water based on the observed outcomes in firefighting efforts.

Understanding discharge pressure also aids in pump calculations, determining the appropriate flow rates, and ensuring that equipment is functioning within its design limits, all of which are critical for effective fire operations.