In which residential wiring configuration are tip and ring wires run in a circular configuration?

• A. Backfeed
• B. Daisy chain
• C. Radial
• D. Star

Answer: (A)

This question tests how tip and ring conductors can be laid out in a residential circuit and what creates a loop or circle in that wiring. The idea behind a circular configuration is that the two wires are run around the building and return to the starting point, forming a closed loop. When the pair loops back to where it began, the circuit is effectively backfed, which is why this layout is described as a backfeed arrangement.

In contrast, a radial layout takes branches from a single point outward, a daisy-chain runs devices in a line from one to the next, and a star layout brings each device back to a central hub. None of these create the continuous loop that characterizes a circular backfeed arrangement.