Earthing or Grounding MCQ Test

  1. The Soil resistance depends on .......
  2. Ground resistance should be designed such that
  3. The earthing rod orientation in the pit should be:
  4. Which one is the easiest method for earth resistance measurement?
  5. Electrical resistivity is inversely proportional to the depth of grounding / earthing rod into the ground.
  6. In any system (grounding or ungrounding), a ____ coupling exist between the system conductors and the adjacent grounding surfaces:
  7. Earthing is necessary to give protection against ___.
  8. The advantage of neutral earthing is:
  9. Which one of the following is used in earth pit?
  10. In a ungrounded system, during the fault the protective relays may not able to operate because of the low fault current:
  11. Moisture content in the soil _______ the earth soil resistance.
  12. Generally grounding is provided for:
  13. Which of the following solution is used to reduces the earth’s resistivity?
  14. Which of the following will damage when High voltages originated due to Line to Ground faults in ungrounded system?
Earthing or Grounding MCQ

Take Earthing or Grounding MCQ Test & Online Quiz to test your Knowledge

Below is the Earthing or Grounding MCQ test that checks your basic knowledge of Earthing or Grounding. This Earthing or Grounding MCQ Test contains 20 Multiple Choice Questions. You have to select the right answer to the question. Finally, you can also take the Online Quiz from the Take Earthing or Grounding MCQ Button.

  • Nacl
  • Moisture
  • Depth of the electrode
  • All of the above
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  • Grounding resistance should be always zero
  • Grounding resistance should be as low as possible
  • Grounding resistance should be as high as possible
  • All of the above
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  • Fall of potential
  • Selective measurement
  • Stakeless measurement
  • All are equally easy
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  • Danger of electric shock
  • Voltage fluctuation
  • Overloading
  • High temperature of the conductors
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  • Freedom from persistent arcing grounds
  • Over voltages due to lightning can be discharged to earth
  • Simplified design earth fault protection
  • All of the above
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  • Salt and charcoal
  • Graphite and magnesium
  • Graphite and Silver
  • Aluminum and Iron
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  • increase
  • decrease
  • does not affect
  • none of the above
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  • only for the safety of the equipment
  • only for the safety of the operating personnel
  • Both (A) and (B)
  • None of the above
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  • to provide as low resistance possible to the ground
  • to provide as high resistance possible to the ground
  • to provide flow of positive, negative and zero sequence currents
  • None of the above
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  • depth of the electrode
  • moisture
  • Nacl
  • All of the above
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  • Ungrounded sytem
  • Resistance grounding system
  • Solid grounding system
  • Reactance grounding system
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  • Plate earthing
  • Rod earthing
  • Strip earthing
  • All of the above
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  • connecting electrical machines to earth
  • providing a connection to the ground
  • connecting the electrical machines to source
  • providing a source of current
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