Name a common type of electrical conduit used for residential wiring.

The common type of electrical conduit used for residential wiring is Electrical Metallic Tubing (EMT). EMT is favored for several reasons. It is lightweight yet strong, providing excellent protection for electrical wires from physical damage. Since EMT is made of steel, it also offers some grounding capabilities, which enhances safety by facilitating the grounding of electrical systems within homes.

Additionally, EMT is easy to work with due to its relatively thin wall, allowing for simpler cutting and bending, which is beneficial during installation. It also has a professional appearance, which can be important in visible areas of a residence. EMT is often utilized in both indoor and outdoor applications, making it a versatile choice for various residential wiring needs.

Other materials mentioned, such as PVC, fiberglass conduit, and plastic flexible conduit, have their applications but are less commonly used for standard residential wiring compared to EMT, especially in areas where the risk of physical damage or grounding is a concern.