Which statement about constant-pressure fog nozzles is MOST accurate?
A) The operator can vary the flow rate while maintaining constant nozzle pressure.
B) The operator can vary flow rate but must also change the nozzle pressure.
C) Constant-pressure fog nozzles for handlines are only designed for low-flow rates.
D) Constant-pressure fog nozzles are reliable when the operating pressure is less than 100 psi (700 kPa).

Question

Quizplus · Accepted Answer

Constant-pressure fog nozzles are designed to maintain a constant nozzle pressure, allowing the operator to vary the flow rate without needing to adjust the pressure. This feature is particularly useful for firefighting, as it enables the firefighter to adapt to different fire conditions while ensuring effective water application and manageable nozzle reaction forces.

Which Statement About Constant-Pressure Fog Nozzles Is MOST Accurate