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Power Systems

Power Systems
If the fault is very nearer to the generator, the fault current is

 less
 zero
 any of the above
 larger

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Power Systems
A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant?

 6000 kW
 3750 kW
 3000 kW
 7500 kW

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Power Systems
The positive (Z1), negative (Z2) and zero sequence (Z0) impedances of a transmission line follows the relation

 (Z1 = Z2) > Z0
 Z1 = Z2 = Z0
 any of the above
 (Z1 = Z2) < Z0

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Power Systems
The thermal efficiency of BWR is

  equal to that of PWR.
 less than that of PWR.
 greater than that of PWR.
None of these

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Power Systems
If the diameter of the conductor is increased

 no change in inductance and resistance
 the inductance is increased
 the inductance is decreased
 the resistance is increased

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Power Systems
Maximum power capacity of a transmission line can be increased by

 decreasing reactance value
 increasing voltage level
 either 1 or 2
 nether 1 nor 2

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