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- Subject
- Earthing or Groundingelectrical-engineering-mcqs › earthing-or-grounding
- Published
- 19 Dec 2018
- Last updated
- 28 May 2026
Explanation
The main goal of earthing or grounding is to provide a path with minimal resistance to the earth, ensuring safety and effective fault current dissipation. High resistance is undesirable, and while sequence currents may flow during faults, the key objective is minimizing earth resistance.
More Earthing or Grounding MCQs
Practice related questions from the same subject.
- 1.What determines the appropriate size of the earth or grounding conductor?
- 2.What is the primary purpose of providing grounding in electrical systems?
- 3.Which factors influence the resistance of soil?
- 4.Why must Extra High Voltage (EHV) equipment be isolated and grounded before maintenance work?
- 5.In an ungrounded 3-phase system, what happens to the voltage of the two unaffected phases during a single line-to-ground fault?
- 6.How does the moisture level in soil influence the soil's electrical resistance?
- 7.What happens to the voltage potential at the earth mat when an earth fault takes place?
- 8.What is the ideal characteristic of ground resistance in an electrical grounding system?
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