North Carolina ElectriCities Intermediate Lineworker Practice Exam

The scenario is about providing a backup path so critical customers keep power even if one feeder goes out. The term that best captures this is a duplicated supply layout—the two independent feeds are laid out specifically to duplicate the service to the same customers, ensuring continuity of supply for those important loads.

Why this fits best: it emphasizes having two separate, independent paths delivering the same source to the critical customers, which is the essence of reliability for essential services.

Why the other terms are less precise: a dual-feed network describes having two feeds, but it’s more about how the system is connected rather than the physical layout designed to duplicate the supply to the same loads. A redundant service is a broad idea of backup capability and could refer to many different backup approaches, not necessarily two distinct feeders feeding the same customers. A parallel feeder arrangement conveys two feeders operating in parallel, but it doesn’t inherently imply the deliberate duplication of supply paths to critical loads in the same explicit way.