Plans show curved lines between switches and various outlets. What do these lines indicate?

• A. The outlets controlled by switches
• B. The grounding paths
• C. Concealed conduits
• D. Unconnected wires

Answer: (A)

Curved lines from a switch to an outlet show that the outlet is controlled by that switch. In other words, the outlet gets power only when the switch is on, which is called a switched outlet or switched leg. This notation helps electricians know which receptacles will turn on and off with a particular switch. If outlets are meant to be always hot, you wouldn’t see that curved control line linking them to a switch. Grounding paths, concealed conduits, and unconnected wires are represented with different symbols or line styles, not this curved switch-to-outlet connection.