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Power Systems

Power Systems
How much KWh energy is produced by fission of 1 gm of uranium U235

  24 kWh.
 240 kWh.
  24000 kWh.
 2400 kWh.

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Power Systems
How to find the total number of strands (N) when number of layers (x) are given

 Total number of strands N = 3x² - 3x - 1
 Total number of strands N = 3x² + 3x + 1
 Total number of strands N = 3x² + 3x - 1
 Total number of strands N = 3x² - 3x + 1

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

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

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Power Systems
Counter poise is used for

 proper discharging of lighting surges
 less surge impedance
 more surge impedance
 reduce losses

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Power Systems
When is the ferranti effect on long overhead lines experienced?

 The line is lightly loaded
 The line is fully loaded
 The power factor is unity
 The line is heavily loaded

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Power Systems
Which of the following method is/are more reliable?

All of these
 Gauss-Siedel (GS) method
 Newton Raphson (NR) method
 Fast Decoupled Load Flow (FDLF) method

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