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Power Systems

Power Systems
Making current is a------------ value?

 any of the above
 RMS
 peak value
 average

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Power Systems
Operating cost of thermal power station is

 is the same as that of nuclear power plant.
 less than that of nuclear power plant.
  less than that of diesel power plant.
 less than that of hydroelectric power plant.

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Power Systems
Main bus bar protection scheme is /are

  differential protection.
  both fault bus and differential protection.
  fault bus protection.
  none of these.

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Power Systems
Oxide film arrestor has which of the following properties?

 Does not require daily charging.
 Installed at points of transmission line where daily visit is difficult.
 Both A and B.
 It is expensive.

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Power Systems
Advantage/s of per unit system as compare to absolute system?

 calculation time is less
All of these
 memory required is less
 only one equation is required

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Power Systems
If the breakdown voltage of the insulator is high, the thickness of the insulator is

None of these
 high
 less
 it does not related to breakdown voltage

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