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Power Systems

Power Systems
Buchholz relay is used for protection of

  none of these.
  transformer.
  alternator.
  bus bar.

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Power Systems
The conversion ratio of a breeder reactor is

 none of above.
  equal to unity.
  more than unity.
 less than unity.

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Power Systems
A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be

  89.22 kVA.
 49 kVA.
  35 kVA.
 70 kVA.

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Power Systems
By using guard ring in a transmission line, its string efficiency

 increase
 remains unaffected
None of these
 decrease

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Power Systems
The maximum demand of a consumer is 2 kW and corresponding daily energy consumption is 30 units. What is the corresponding load factor?

 25%
 62.5%
 50.5%
 75%

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Power Systems
What is the function of economiser in steam boilers

 collect ash particals
 cooling
All of these
 improving thermal efficiency

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