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Power Systems

Power Systems
Ferranti effect occurs under

 any of the above
 half load
 no load
 full load

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Power Systems
What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011?

 6114.05.
 15515.22.
 8113.27.
 10000.32.

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Power Systems
The most commonly used material for insulators of overhead lines is

 glass
 PVC
 porcelain
 mica

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Power Systems
An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is

 3.75 pu
 2.5 pu
 7.25 pu
 4.28 pu

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Power Systems
Transmission line parameters of the short transmission line are

 1,Z,0,1
 1,0,Y,1
 1,Z,Y,1
 Z,0,Y,1

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Power Systems
Percentage of carbon is highest in

  bituminous coal.
  anthracite coal.
  coal gas.
  lignite coal.

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