Which component is NOT part of the nozzle for the 1 3/4" attack line?

The 1 3/4" hose adapter is not a component of the nozzle itself for the 1 3/4" attack line. The nozzle comprises elements that directly influence the flow and direction of water, primarily focusing on features like the shut-off valve, the main stream tip, and the control valve. Each of these components plays a critical role in managing water flow and pressure at the nozzle during firefighting operations.

The shut-off valve allows firefighters to control when water flows through the nozzle, essential for effective operation and safety. The 15/16" main stream tip is specifically designed to produce an effective stream pattern for firefighting, optimizing reach and penetration into the fire. The control valve further aids in regulating the pressure and flow, ensuring that the firefighters can adapt the water output to suit different firefighting scenarios.

In contrast, the hose adapter serves a different function, connecting the hose to the water supply or other hoses, and is not part of the nozzle assembly. Understanding these distinctions is crucial for effective firefighting as it helps firefighters utilize their equipment correctly to combat fires efficiently.