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Power Systems

Power Systems
For symmetrical network, the neutral current is

 zero
 maximum
 any of the above
 infinity

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Power Systems
For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to

 V2.
 1 / V.
 V.
  1 / V2.

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Power Systems
The rate of rise of restricting voltage depends upon the

 Inductance of the system.
 Type of CB.
  Inductance and capacitance of the system.
 Capacitance of the system.

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Power Systems
In relay coil which is used?

  Current transformer.
  Power transformer.
  Potential transformer.
  Instrument transformer.

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Power Systems
In load flow studies PV bus is treated as PQ bus when

 any of the above
 phase angle become high
 reactive power goes beyond limit
 voltage at the bus become high

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Power Systems
On which one of the following cycles does a modern steam power plant work?

 Carnot cycle
 Otto cycle
 Rankine cycle
 Bell-Coleman cycle

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