Which statement accurately describes the use of an electrical conduit?

Comprehensive and Detailed Explanation From Exact Extract:

Steel conduit is primarily used to support and protect electrical conductors from physical damage

and to provide mechanical protection. It can also serve as an equipment grounding conductor in

many applications, but a separate ground wire is sometimes still required depending on code and

installation specifics.

Option A is incorrect because steel conduit often acts as the grounding path, so a separate ground

wire is not always required.

Aluminum conduit (B) is not commonly used in all the same locations as steel, especially due to

corrosion concerns.

PVC conduit (C) is nonmetallic and does not provide a grounding path; a separate ground wire is

needed.

Reference:

ARE 5.0 PPD – Building Systems and Assemblies, Electrical Systems

The Architect’s Handbook of Professional Practice, 15th Edition – Electrical Systems