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Power Systems

Power Systems
Corona loss is ----------------- on hilly areas than as plain areas.

None of these
 more
 remain same
 less

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Power Systems
Reflector nuclear reactor are made of

  beryllium.
 boron.
 steel.
 cast iron.

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Power Systems
A transmission line is operating under no load has ABCD parameters B = 100∠90° has a phase shift of 0.2 rad, how much shunt reactor is required for compensation of ferranti effect?

 2 mH
 2 H
 15.9 mH
 15.9 H

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Power Systems
Keeping in view the cost and overall effectiveness, the following circuit breaker is suited for capacitor bank switching

  air blast.
  vacuum.
  oil.
  SF6.

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Power Systems
A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage?

 40 kV
 45 kV
 36 kV
 32 kV

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Power Systems
Specified quantities of slack bus are

 V and δ
 P and Q
 P and δ
 P and V

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