Which of the following is NOT considered a master stream appliance?

A solid stream is not considered a master stream appliance. Master stream appliances are designed to deliver large volumes of water efficiently and effectively to combat fires from a greater distance or height. They typically connect to a larger water supply and provide high-flow capabilities suitable for significant fire situations.

In contrast, a solid stream refers to the type of water flow produced by certain nozzles, which create a continuous, concentrated jet of water. While solid stream nozzles can be part of master streams (like when used on a deck gun or ladder pipe), the term itself describes the flow pattern rather than an appliance designed for operation as a master stream.

In summary, master stream appliances are characterized by their ability to deliver significant volumes of water and are typically recognized as equipment like deck guns, portable monitors, and ladder pipes. Solid stream describes one of the flow patterns associated with these appliances, which is why it is not classified as a master stream appliance itself.