ICC Residential Electrical Inspectors Practice Exam

Which conductor in a multi-wire branch circuit is not dependent on connection to devices for its continuity?

1. Hot conductor

2. Neutral conductor

3. Grounded conductor

4. Unused conductor

The correct answer is: Grounded conductor

The grounded conductor, commonly referred to as the neutral conductor, is not dependent on its connection to devices for its continuity. This means that the continuity of this conductor does not rely on its attachment to loads or equipment in the circuit. Its primary purpose within a multi-wire branch circuit is to provide a return path for current to the source after it has passed through the devices. In a multi-wire branch circuit, the neutral conductor must maintain its integrity regardless of whether the hot conductors are connected to devices. This characteristic is essential for ensuring that the electrical system remains safe and functional; if the neutral is compromised, it could lead to unbalanced loads, overloading, or even electric shock hazards. Other conductors, such as hot conductors and any unused conductors, depend on their connection to devices or loads to serve their purpose. The integrity of these conductors is linked to their operation within a circuit, where a break in connection would disrupt functionality.