NCCER Electrical Module 6 Device Boxes Questions and Answers | Latest Version | 2024/2025 | Correct & Verified

NCCER Electrical Module 6 Device Boxes Questions and Answers | Latest Version | 2024/2025 | Correct & Verified What is the primary purpose of a device box in an electrical system? A device box houses electrical devices like switches, outlets, and junctions, protecting them and providing space for wire connections. How do you determine the size of a device box? The size is determined by the number and size of conductors, devices, and grounding conductors to ensure safe and secure placement. What is a gang box? A gang box is a type of electrical box designed to house multiple devices in one location, allowing for more than one switch or outlet. What type of material are most device boxes made from? Device boxes are commonly made from plastic or metal, depending on the installation requirements and the environment. 2 How do you ground a metal device box? Ground a metal box by connecting a grounding wire to the box using a grounding screw or clip. What does a box extension ring do? A box extension ring increases the depth of a device box to accommodate thicker walls or additional wiring. Why should you avoid overcrowding a device box? Overcrowding can lead to overheating, improper connections, or difficulty securing covers, all of which pose safety risks. What is the difference between a single gang and a double gang box? A single gang box houses one device, while a double gang box is designed for two devices. How do you mount a device box on a wall? Mount a device box using screws or nails to secure it to wall studs or framing, ensuring it is level and properly aligned. 3 Why are box covers used? Box covers are used to protect electrical components and prevent accidental contact with live wires. What is the purpose of a plaster ring? A plaster ring is used to extend the surface of a box for a more secure and flush fit when installing a cover plate. What does “box fill” refer to in electrical installations? Box fill refers to the total volume of space inside a device box, which must be calculated to ensure there is enough room for all conductors, devices, and grounding. What are weatherproof device boxes? Weatherproof device boxes are designed for outdoor use and have sealing features to protect electrical components from water and dust. How do you install a box with knockouts?