In relay feeding operations, what component serves as a junction to split a large diameter supply hose into smaller lines?

• A. Discharge Manifolds in Relay
• B. Angle of Departure
• C. Grid Systems
• D. Proximity

Answer: (A)

In relay feeding, the component that acts as a junction to split a large-diameter supply hose into smaller lines is the discharge manifold. It functions as a hub where the big supply line from the hydrant or previous pump is connected, and multiple outlets branch off to feed several smaller hoses or to supply additional pumpers. This setup lets you distribute water efficiently to multiple attack lines or to feed multiple devices without awkward, single long runs that waste pressure.

Think of the discharge manifold as a multi-port connector designed for this exact purpose: it consolidates the high-volume flow from one large hose and routes portions of that flow into several smaller hoses, often with individual valves to control each branch. This keeps the operation organized, reduces friction losses that would occur if you tried to run many long small-diameter hoses directly from the main line, and helps maintain adequate pressure where you need it.

The other terms don’t describe a hardware piece that splits a hose. The angle of departure refers to where the supply line leaves the apparatus, not to a junction for distributing water. Grid systems describe a layout approach for placing lines, not a single splitter device. Proximity relates to how close apparatus or lines are to the hazard, not to a component used to divide flow.