Which term is commonly used to refer to type-NM cable?

Type-NM cable, which stands for Non-Metallic Sheathed cable, is commonly referred to as "Romex." This term is actually a brand name that has become synonymous with this type of electrical wiring. Romex is widely used in residential wiring because it is relatively easy to handle, affordable, and provides a safe method for delivering electricity in homes. It consists of insulated conductors and is often encased in a plastic sheath, providing protection against moisture and physical damage.

Understanding this terminology is important, especially in the context of home inspections and electrical safety, as it helps distinguish between various types of wiring methods and their applications in residential settings. Other options represent different types of cabling or conduit that serve different purposes and may not be suitable for all residential wiring scenarios.