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Power Systems

Power Systems
Calorific value of solid fuel is expressed as

  KCal / gm.
  KCal / lt.
  Cal / gm.
  Cal / lt.

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Power Systems
Which one of the following relays has the capability of anticipating the possible major fault in a transformer?

 Over fluxing relay
 Over current relay
 Differential relay
 Buchholz relay

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Power Systems
A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation?

 Zs/√(1 + Kcsh)
 Zs*√(1 + Kcsh)
All of these
 √(1 + Kcsh)/Zs

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Power Systems
For accurate load flow calculations on large power systems, the best method is

 N-R method
 G-S method
All of these
 Decoupled method

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Power Systems
How much KWh energy is produced by fission of 1 gm of uranium U235

 2400 kWh.
  24 kWh.
 240 kWh.
  24000 kWh.

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Power Systems
Which of following power plants is free from environmental problem

 Steam.
 Nuclear.
 Diesel engine.
  Hydroelectric.

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