Final answer:
The specialized nozzles such as cellar nozzles, piercing nozzles, or chimney nozzles create a high-velocity, narrow and focused stream of water, which is known as a solid stream hose stream or a jettison stream.
Step-by-step explanation:
The specialized nozzles such as cellar nozzles, piercing nozzles, or chimney nozzles create a high-velocity, narrow and focused stream of water, which is known as a solid stream hose stream or a jettison stream.
These nozzles restrict the flow of water, increasing its speed and creating a more powerful stream that can penetrate through various obstacles. This type of hose stream is commonly used in firefighting and other situations where a high-pressure, concentrated stream is needed.
For example, a cellar nozzle is designed to be used in basement fires, and it produces a solid stream of water that can reach deep into the structure. Similarly, piercing nozzles are used to penetrate materials like roofs or walls, and chimney nozzles are used for firefighting in chimneys.