Question

All of the subsequent are allowed to be utilized as a grounding electrode, except

1. Metal underground water pipe
2. Metal underground gas pipe
3. Metal frame of the building
4. Ground ring

Answer 1

Grounding is the process of connecting a conductor to the Earth to fix it at zero volts. Metal underground water pipes, metal underground gas pipes, the metal frame of a building, and a ground ring can all be used as grounding electrodes.

Step-by-step explanation:

Grounding is the process of connecting a conductor to the Earth with a good conductor to fix it at zero volts. The allowed materials for grounding electrodes include metal underground water pipes, metal underground gas pipes, the metal frame of a building, and a ground ring.