Which term describes creating a low-impedance path between metal parts to prevent shock?

• A. Bonding
• B. Grounding
• C. Insulating
• D. Isolation

Answer: (A)

Bonding creates a low-impedance connection between metal parts so they all stay at the same electrical potential. That keeps exposed surfaces from being at different voltages, so if a fault puts a live conductor on or near metal, the fault current has a ready low-resistance path and will quickly flow to the bonding network, causing protective devices to trip and reducing the shock risk to a person who might touch the parts.

Grounding is related but serves a slightly different purpose: it ties the system to earth to provide a reference and a fault-path to ground. Insulating and isolation aim to prevent current flow rather than ensure a safe, low-resistance path between metal parts.