What device is used to attach the ground wire?

• A. Clamp
• B. Lug
• C. Bond
• D. Terminal

Answer: (B)

Grounding a system relies on a secure termination of the ground conductor to the equipment or chassis. The device used for this purpose is a grounding lug, which is a metal terminal with a mounting hole for a bolt or screw. It clamps the wire firmly and provides a robust, low-resistance path to the grounding system, helping the enclosure and the ground path stay at the same potential and carry fault current safely. A clamp might hold a wire, but it isn’t the standard term for attaching a ground conductor; a terminal is a general connection point, and bonding refers to linking conductive parts to equalize potential, not the specific act of attaching the ground wire.