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Power Systems

Power Systems
A gas turbine power plant is best suited for

 None of these.
 Base load.
 Emergency.
 Peak load.

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Power Systems
The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is

 20.
  5.
 55.1.
 10.

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Power Systems
A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator

  24.
 16.
 6.
 12.

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Power Systems
The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be

 -2 - j 1 A
 1 + j 2 A
 1 + j 4 A
 5 + j 7 A

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Power Systems
If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is

 50 MJ
 5 MJ
 10 MJ
 500 MJ

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Power Systems
Surge impedance loading of a line is increased by which of the following compensation methods?

 both 1 and 2
 shunt reactor
 series capacitor
 shunt capacitor

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