Pumping Apparatus Driver Operator Handbook Chapter 7 - Theoretical Pressure Calculations | Questions and Answers with complete solution

The current formula for friction loss accounts for the diameter of the hose, the volume of water flowing, and the: Select one: a. expected time. b. level of elevation. c. distance of fire stream. d. length of the hose layout. See page 212 - d. length of the hose layout Which is the correct customary formula for determining pump discharge pressure? Select one: a. Nozzle pressure plus total pressure loss b. Nozzle pressure divided by total pressure loss c. Elevation loss plus friction loss minus nozzle pressure d. Friction loss plus elevation loss multiplied by total pressure loss See page 218 - a. Nozzle pressure plus total pressure loss Which BEST describes friction loss for handline nozzles? Select one: a. 25 psi (175 kPa) for all appliances b. 10 psi (70 kPa) loss for each appliance c. Generally considered to be insignificantd. Generally considered to be one-half of rated loss See page 213 - c. Generally considered to be insignificant