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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.
 2400 kWh.
  24000 kWh.

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Power Systems
In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

 5
 2
 8
 4

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Power Systems
Ideal plant load cfactor is

 0
 1
 less than 1
 greater than 1

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Power Systems
A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV?

 0.05
 0.025
 0.25
 0.02

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Power Systems
Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be

 0.25 pu
 0.05 pu
 0.45 pu
 0.15 pu

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Power Systems
What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes

 78.96 %.
  79.33 %.
 80.25 %.
  74.56 %.

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