When mounting a receptacle in a box flush with the finished surface, the mounting yoke or strap must be held against the box or box cover. This describes which installation requirement?

• A. Box or Box Cover
• B. Faceplate
• C. Wall Stud
• D. Grounding Conductor

Answer: (A)

When a receptacle is mounted so its face sits flush with the finished surface, the device’s mounting yoke must be pressed against the box or the box cover. This seating provides solid support and ensures the screws pull the strap tight to the box, keeping the device aligned and securely in place. If the strap isn’t held against the box or its cover, the receptacle can sit too far in or out, become loose, or not sit flush, which can damage the finish or create a loose connection over time. The other terms in the choices aren’t about this mounting action: the wall stud is just the structural member behind the wall, the grounding conductor relates to safety wiring, and the faceplate is installed afterward to cover the opening but doesn’t serve as the mounting surface for the strap.