This fitting is to connect two branch circuits to a single supply line.

This fitting is to connect two branch circuits to a single supply line.

• A. Elbow
• B. Tee
• C. Union
• D. Coupling

Answer: (B)

A tee fitting is used to split a single supply into two branches. It has three ports—one inlet and two outlets—so you can feed two branch circuits from one line. This is exactly what you need when you want two paths from one source. An elbow only changes direction, so it doesn’t create a branch. A union joins two sections in line so they can be disconnected, not split. A coupling connects hose ends in line, also not splitting the flow into two paths.

A tee fitting is used to split a single supply into two branches. It has three ports—one inlet and two outlets—so you can feed two branch circuits from one line. This is exactly what you need when you want two paths from one source.

An elbow only changes direction, so it doesn’t create a branch. A union joins two sections in line so they can be disconnected, not split. A coupling connects hose ends in line, also not splitting the flow into two paths.