In blitz fire deployment, what is the required GPM and PSI?

The correct answer indicates that for blitz fire deployment, the specified flow rate of 500 gallons per minute (GPM) at a pressure of 155 pounds per square inch (PSI) is essential for effective operation. Blitz fire systems are designed to deliver large volumes of water to suppress fires quickly, particularly in high-hazard situations.

The combination of 500 GPM and 155 PSI is designed to ensure that the water reaches the intended target with sufficient velocity and coverage area. The flow rate allows for a robust water stream that can combat intense fires, while the pressure is maintained to ensure that the stream is adequately projected, especially when distance from the nozzle or obstacles are a consideration.

Using inadequate flow rates or pressures, as suggested by the other options, may compromise the performance of the blitz fire deployment, leading to inefficient fire suppression efforts. Therefore, 500 GPM and 155 PSI is established as the standard requirement to balance volume and pressure for optimal firefighting effectiveness.