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Power Systems

Power Systems
Pumped storage plant is a

 base load plant
 both 1 and 2
 peak load plant
None of these

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Power Systems
Which of the following will take least time in starting from cold condition to full load operation

 Nuclear power plant.
  Hydro electric power plant.
 Gas turbine plant.
 Thermal power plant.

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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

 400 MVA
 100 MVA
 200 MVA
 500 MVA

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Power Systems
A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system?

 1.476 A.
 1 A.
 14.7 mA.
  14.76 A.

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Power Systems
Proximity effect is more in case of

 same in both cases
 power cables
None of these
 over head lines

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Power Systems
If a fault occurs on any feeder, the fault current is

  much lower than with unsectional bus bar.
  much higher than with unsectional bus bar.
  none of these.
  equal to unsectional bus bar.

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