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Power Systems

Power Systems
Most commonly used material for insulator is

 mica
 porcelain
All of these
 glass

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Power Systems
In a regenerative cycle, feed water is heated by

  drained steam from turbine.
 heaters.
 all of above.
 exhaust gas.

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Power Systems
An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is

 100 MVA
 200 MVA
 500 MVA
 400 MVA

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Power Systems
String chart is drawn between

 nether 1 nor 2
 both 1 and 2
 temperature (T) on X- axis, sag(S) and tension (T) on Y-axis
 T on Y-axis and S and T on on X-axis

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Power Systems
Where do compounding done in thermal power plants

  Turbine.
  Ash handling plant.
  Coal handling plant.
  Generator.

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Power Systems
The rate of rise of re-striking voltage is dependent upon

 resistance of the system only
 capacitance of the system only
 both 1 and 2
 inductance of the system only

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