What type of nozzle produces a broken stream?

The type of nozzle that produces a broken stream is the fog nozzle. Fog nozzles are designed to create a fine mist or spray pattern by breaking the water into smaller droplets. This effect is achieved due to the nozzle's design, which allows it to expand the water into a wide pattern, creating vaporized particles that enhance cooling and exposure reduction during fire suppression.

This broken stream not only helps in efficiently extinguishing fires but also enables better visibility and safety for firefighters in some situations, as the mist can obscure visibility less than a solid stream. Moreover, the adjustable spray pattern of a fog nozzle allows firefighters to switch between different flow rates and patterns as needed for various firefighting conditions, enhancing versatility in response tactics.

The other types of nozzles mentioned, such as solid stream nozzles and smooth-bore nozzles, produce a continuous and concentrated stream of water rather than a broken stream, which is less effective in certain scenarios where dispersal or cooling is crucial.