What is the GPM and NP for a 2 1/2" master stream tip?

The correct answer is based on the standard flow rates and nozzle pressure for a 2 1/2" master stream tip, which are crucial for effective fire suppression operations. A master stream nozzle is designed to deliver a high volume of water to combat large fires, and its specifications help firefighters determine the appropriate pressure and flow rates necessary to achieve maximum water delivery.

In this case, a 2 1/2" master stream tip typically has a flow rate of around 1500 gallons per minute (GPM) at a nozzle pressure (NP) of 80 pounds per square inch (psi). This flow rate is effective for producing a wide, powerful stream of water that can cover large areas or penetrate deep into a fire. The nozzle pressure is also significant because it ensures that the water is discharged effectively to achieve the desired reach and fire suppression capability.

Understanding these parameters is essential for driver engineers as they operate fire apparatus and ensure that adequate water supply and pressure are available during firefighting efforts.