What is the amount of friction loss for each length of 1 3/4 inch hose?

The correct amount of friction loss for each length of 1 3/4 inch hose is 20 psi. This standard measurement is based on the Fire Department's hydraulic calculations and is widely accepted in firefighting practices.

Friction loss refers to the pressure loss that occurs as water flows through hose and other components due to the resistance of the internal surfaces. For 1 3/4 inch hose, the friction loss is typically calculated at 20 psi per 100 feet of hose. This helps firefighters determine the necessary pressure to maintain adequate water flow at the nozzle during operations. Understanding this friction loss is crucial for firefighters to ensure that they can effectively combat a fire while managing water supply and pressure correctly.

Other options suggest different values for friction loss, which do not align with established guidelines for 1 3/4 inch hose, making them incorrect in terms of standard firefighting calculations.