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Power Systems

Power Systems
Among the following which is not non conventional energy

  Nuclear.
  Wind.
  Geothermal.
  Tidal.

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Power Systems
What are the methods of laying underground cables?

 Draw - in - system / duct - pipe laying.
  Both A and B.
 None of these.
 Direct laying.

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Power Systems
Mho relay is used for protection of

  none of these.
  long lines.
  medium lines.
  short lines.

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Power Systems
Advantages of per unit system is/are

 No units for any quantity
 Need of transformation ratio
All of these
 It has units for all quantities

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Power Systems
The function of draft tube is reaction turbine is to

 increase flow rate of water.
  convert kinetic energy of water.
 all of above.
 reduce water hammer.

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Power Systems
For which one of the following types of motors, is the equal area criterion for stability applicable?

 Three phase synchronous motor
 DC shunt motor
 DC series motor
 Three phase induction motor

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