Flexible metal conduit (FMC) is a raceway of circular cross section made of ____.

Question

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Flexible metal conduit (FMC) is made of helically wound, formed, and interlocked metal strip, typically steel. It is often used as a flexible conduit for wiring in buildings and can also be used as a grounding conductor. PVC is not typically used in FMC construction and aluminum alloy is not commonly used for FMC. There is also no interlocking metal and PVC conglomerate typically used for FMC.

Flexible Metal Conduit (FMC) Is a Raceway of Circular Cross