What is the maximum reach of the pre-piped elevated master stream while equipped with an adjustable fog nozzle?

The maximum reach of a pre-piped elevated master stream armed with an adjustable fog nozzle is indeed 100 feet with a flow rate of 1000 GPM. This choice reflects the typical operational standards for fire departments regarding elevated master streams, which are crucial for delivering water in high-rise structures or in situations where ground-level access is hindered.

An adjustable fog nozzle allows for versatility in the type of stream produced, enabling firefighters to manipulate the flow pattern as needed to optimize effectiveness in extinguishing fires while maintaining safety. The choice of 1000 GPM at 100 feet is consistent with the expected performance capabilities for such equipment, ensuring that it can deliver a substantial volume of water while maintaining an effective reach.

The other options suggest higher GPM flows and reach, but exceed standard specifications and practical applications for elevated master streams equipped with adjustable fog nozzles, thereby making them less applicable in typical operational scenarios. This makes the selected answer both practical and aligned with established firefighting guidelines.