What does a pitot gauge measure?

A pitot gauge is an essential tool used by firefighters to measure the flow pressure in a water system, typically within a fire hose or nozzle. Understanding how it works is crucial for ensuring effective firefighting operations. The gauge is designed to quantify the pressure at which water is flowing, which enables firefighters to assess the performance capabilities of their equipment during an operation.

Measuring flow pressure is vital because it helps in calculating the available water supply and determining the effectiveness of the firefighting strategy being employed. Knowing the flow pressure allows firefighters to optimize their techniques for extinguishing fires and ensures that they have adequate pressure to combat a fire efficiently.

The other answer choices, while related to various measurements in firefighting operations, do not accurately describe the pitot gauge's function. For instance, flow rate in gallons per minute is determined after measuring flow pressure, but is not a direct measurement of what the pitot gauge provides. Similarly, pressure measured in psi refers to a static measurement rather than the specific dynamic measurement taken by a pitot gauge. Lastly, the temperature of water is not relevant to the function of a pitot gauge; it measures the pressure associated with the flow of water rather than its temperature.