Wye appliance: what does it do?

• A. Connects two hoses into one
• B. Used to connect to hydrant
• C. Takes one hoseline and divides it into two or more hoselines
• D. Controls water flow with a valve

Answer: (C)

A Wye appliance is a Y-shaped hose fitting that splits one incoming hoseline into two or more outgoing lines. This lets firefighters feed multiple attack lines from a single water source while keeping pressure and maneuverability. It’s designed for distribution, not for joining two hoses into one or for connecting to a hydrant specifically, and while some versions may have valves, the key function is dividing flow into multiple lines.