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Power Systems

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

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

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Power Systems
Which of the following relays are used in protection of medium transmission lines?

 Mho relays
 Impedance relays
 any of the above
 Admittance relays

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Power Systems
Which of the following rotor is used in thermal power plants?

 salient pole rotor
 either of these
 squirrel cage rotor
 cylindrical rotor

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Power Systems
Which type of connection is employed for current transformers for the protection of star- delta connected 3-phase transformer?

 delta-star
 delta-delta
 star-delta
 star-star

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Power Systems
Mho relay is used for the protection of

 no length criterion.
  long transmission lines.
 medium length lines.
 short length lines.

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Power Systems
Aluminium is now most commonly employed conductor material in transmission lines than copper because

 it is cheaper and lighter
 its tensile strength is more
 it is more conductive
 costlier

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