What are the two types of FMC (Flexible Metal Conduit)?

The correct answer identifies the two types of Flexible Metal Conduit (FMC) as Liquidtight and Non-Liquidtight. This distinction is important in its applications and installation practices.

Liquidtight FMC is designed to prevent moisture and contaminants from entering the conduit, making it ideal for wet and harsh environments. It typically has a special outer jacket that provides this protection, allowing it to be used in locations where exposure to moisture could damage the electrical wiring or components.

In contrast, Non-Liquidtight FMC lacks this protective outer layer, rendering it suitable for dry areas or applications where exposure to moisture is minimal. This type of conduit is flexible and durable, allowing for easy routing in various installations but is not intended for areas that are prone to moisture.

Understanding these two types is essential for electricians and engineers to choose the appropriate conduit for specific environmental conditions and electrical requirements, ensuring safety and compliance with electrical codes.