Which of the following is NOT a consideration when selecting a pump for a firefighting scenario?

• A. Color of the pump housing
• B. Required flow
• C. Friction losses
• D. Water source pressure

Answer: (D)

When sizing and selecting a fire pump, focus on the hydraulic needs of the scene. The pump must deliver enough water at the right pressure to overcome friction losses in the hose layout and to meet the nozzle’s required operating pressure. That means you assess the required flow (how many gallons per minute you need at the nozzle) and you account for friction losses through hose lengths, fittings, and elevation changes, as well as the pressure available from the water source. The pump has to boost the source pressure to the level needed at the discharge to the nozzle.

The color or appearance of the pump housing is not involved in those calculations. It doesn’t affect flow, pressure, or safety performance, so it’s not a factor in choosing the appropriate pump for a firefighting scenario.