Which fog-stream nozzle has a flow of between 90 and 225 gpm?

The correct choice refers to an automatic-adjusting fog-stream nozzle, which is designed to deliver a flow rate that varies within a specified range, in this case, between 90 and 225 gallons per minute (gpm). This adaptability allows firefighters to manage a variety of situations effectively, as the flow can be adjusted automatically based on the pressure supplied to the nozzle. This feature enhances the nozzle's versatility, allowing it to respond quickly to changing conditions at the fire scene or when dealing with different types of fires.

The automatic-adjusting nozzle maintains optimal performance by adjusting the flow based on the nozzle pressure and can provide both a wide-angle spray for a greater reach and a tighter stream for more focused application. This makes it particularly useful in firefighting scenarios where conditions may change rapidly or where the specific water flow needs to be calibrated to the situation.

In contrast, fixed-gallonage nozzles deliver a set amount of water and do not offer flexibility in flow rates. Adjustable-gallonage nozzles allow some control over the flow but do not adjust automatically. Variable-gallonage nozzles can provide multiple settings but might not have the same automatic pressure response as the automatic-adjusting types. Understanding these different types of nozzles and their capabilities