Corona Loss | Transmission And Distribution Objective Type Questions and answers


31.  The effect of corona can be detected by


   A. Presence of zone detected by odour

   B. Hissing sound

   C. Faint luminous glow of bluish colour

   D. All of the above


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D. All of the above

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32.  Corona results in


   A. Radio interference

   B. Power factor improvement

   C. Better regulation

   D. None of the above


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A. Radio interference

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33.  Which of the following has least effect of corona?


   A. Atmospheric temperature

   B. Number of ions

   C. Signage and charge per ion

   D. Mean free path


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A. Atmospheric temperature

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34.  Power loss due to Corona is not directly proportional to


   A. Spacing between conductors

   B. Supply voltage frequency

   C. Phase-neutral voltage

   D. All of the above


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A. Spacing between conductors

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35.  Corona is likely to occur maximum in


   A. Transmission lines

   B. Distribution lines

   C. Domestic wiring

   D. All of the above


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A. Transmission lines

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