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Power Systems

Power Systems
Ideal plant load cfactor is

 1
 0
 less than 1
 greater than 1

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Power Systems
Frequencies must be same in which of the following line to exchange the power from one place to other place ?

 No need of same frequency for exchange of power
 both 1 and 2
 Asynchronous line
 Synchronous line

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Power Systems
If the diameter of the conductor is increased

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

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Power Systems
The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected?

 15%
 11.8%
 88.2%
 85%

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Power Systems
One atomic mass unit is equivalent to

 180.5 MeV.
 120.4 MeV.
 251.2 MeV.
  931.4 MeV.

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Power Systems
Rating of fuse wire is expressed in

  Ampere.
  Mho.
 ÃŽÂ©.
  Watts.

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