Which connecting device is used to join conductors and is commonly identified as a split bolt?

• A. Wire Nut
• B. Split Bolt
• C. Compression Lug
• D. Terminal Block

Answer: (B)

Joining conductors requires a connector that can securely clamp multiple wires together, handling the current without relying on twist-ons or crimped terminations. A split-bolt connector fits this need precisely: it’s a two-piece metal sleeve that splits along its length. You place the conductors inside the sleeve and tighten the bolt, causing the halves to pinch the wires together and create a solid electrical path. This type of device is specifically associated with the term “split bolt,” so it’s the natural choice for describing a connector used to join conductors that’s identified by that name.

Wire nuts are plastic, twist-on connectors suited to smaller wires and insulation. A compression lug is used to terminate a conductor to equipment via crimping. A terminal block serves as a distribution point with multiple screw terminals, not a single splice device.