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Power Systems

Power Systems
Among the following which is not non conventional energy

  Wind.
  Tidal.
  Nuclear.
  Geothermal.

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Power Systems
The positive, negative and zero sequence impedances of a transmission line are 0.5,0.5 and 1.1 pu respectively. The self (Zs) and mutual (Zm) impedances of the line will be given by

 Zs = 0.6 pu, Zm =0.5 pu
 Zs = 0.7 pu, Zm =0.2 pu
 Zs = 0.5 pu, Zm =0.6 pu
 Zs = 0.2 pu, Zm =0.7 pu

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Power Systems
In a transmission line the insulators to be used at the dead end or sharp curves are

 strain type
 pin type insulator
 suspension type
 any of the above

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Power Systems
The conductor carries more current on surface as compared to core. This is called as

 corona effect
 skin effect
 unsymmetrical fault
All of these

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Power Systems
The function of reflector is to

  bounce back most of the neutrons that escape from the fuel core.
 reduce the speed of the neutrons.
 none of above.
 stop the chain reaction.

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Power Systems
For transmission line which one of the following relation is true?

 AD - BC = 1
 AD - BC = -1
 AD - BC = 0
 AD + BC = 0

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