Devices through which water flows, used in conjunction with fire hose, are known as?

The term "appliances" specifically refers to devices through which water flows and is used in conjunction with fire hoses. These appliances can include various equipment like nozzles, valves, and hydrants that facilitate the movement and management of water during firefighting operations. Understanding this definition is crucial, as appliances play a vital role in controlling the flow and pressure of water, thereby enhancing the effectiveness of firefighting efforts.

The other choices pertain to different concepts. Connectors are used to join hoses together, but they do not specifically facilitate water flow in the way that appliances do. Apparatus typically refers to the entire firefighting vehicle or equipment system, not individual devices. Attachments can also refer to devices that connect to hoses or equipment but lack the specific reference to water flow management that appliances provide. Thus, "appliances" is the most accurate term in this context.