What is the result of using the coefficient method to determine pressure loss due to friction in the hose assembly?

The coefficient method is a widely accepted approach for calculating pressure loss in hose assemblies due to friction. This method takes into account factors such as hose diameter, length, flow rate, and the friction loss coefficient for different types of hoses.

Using the coefficient method allows for a more accurate estimation of pressure loss as it is based on empirical data that reflects real-world conditions. In this case, arriving at a pressure loss of 86.5 psi indicates that the calculations were performed using the relevant hose diameter and flow rate, applying the appropriate friction loss coefficient.

This value can help operators make informed decisions about pump pressure and supply lines, ensuring that sufficient pressure reaches the nozzle for effective firefighting operations. Understanding and applying the coefficient method is crucial for driver operators as it directly affects the efficiency and safety of firefighting efforts.