SEPTA Electrician Practice Test

MC cable is a type of what?

Thermoplastic-insulated wire Metal-clad cable Armored cable Fiber-optic cable

Correct Answer:

Metal-clad cable

Explanation:

Metal-clad cable is a type of cable that has a metallic outer sheath around insulated conductors, giving mechanical protection and often a grounding path. This is what defines MC cable, distinguishing it from other options. The thermoplastic-insulated wire refers to individual conductors, not a full cable with a metal jacket. Armored cable describes a different construction with armor around conductors and usually a separate jacket. Fiber-optic cable carries light signals and contains no electrical conductors. So, the correct classification for MC cable is metal-clad cable.

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