Which of the following is NOT a type of Nonmetallic-Sheathed Cable?

The correct answer identifies Type UF as not being categorized as Nonmetallic-Sheathed Cable in the same way as the other options. Nonmetallic-Sheathed Cable, often referred to as NM cable, typically includes types such as NM (Type NM) and NMC, which are designed for interior residential wiring in dry locations.

Type UF (Underground Feeder) cable, while it also has a nonmetallic sheath, is specifically designed for underground installations and wet locations. This use is distinct from that of NM and NMC types, which are restricted to dry locations. Therefore, UF is typically not considered under the umbrella of standard Nonmetallic-Sheathed Cables as there are particular requirements and conditions associated with its application that differ significantly from NM and NMC types.

Type NMS (Nonmetallic-Sheathed) also refers to another classification of nonmetallic cables, further supporting the distinction of UF as a unique type, thus reinforcing the idea that it is not included when discussing standard Nonmetallic-Sheathed Cables used primarily for indoor applications.