Which type of tubing is referred to as FMT?

The term FMT stands for Flexible Metallic Tubing, which is specifically designed for applications where flexibility is required but also ensures protection for conductors. This type of tubing is often used in areas that need bending and movement while still providing a conduit for wiring that needs a certain degree of physical protection.

Flexible Metallic Tubing is advantageous in installations that require an ability to navigate around obstacles, making it suitable for various environments, including residential and commercial settings. It is typically used in locations that must comply with specific codes and standards, supporting safety and functionality in electrical installations.

In contrast, the other options involve different types of conduits or tubing that serve distinct purposes. Electrical Nonmetallic Tubing is typically used for nonmetallic applications and does not provide the same mechanical protection as FMT. Liquidtight Flexible Metal Conduit is specifically designed to be waterproof and resistant to fluids, while Rigid Polyvinyl Chloride Conduit does not possess the flexibility required that FMT offers. Each of these types has its own applications governed by the NEC and does not match the characteristics of Flexible Metallic Tubing.