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Power Systems

Power Systems
Mho relay is used for protection of

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

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Power Systems
Galvanised steel is generally used as

 stray wire.
 structural components.
All of these
 earth wire.

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Power Systems
A hydroelectric power station is commonly found in

 desert areas.
  hilly areas.
 swamps.
 grasslands.

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Power Systems
Mercury is choice with steam in binary vapor cycle because

 relative low vaporization pressure.
  all of above.
 higher critical temperature and pressure.
 higher saturation temperature than other fluids.

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Power Systems
Ferranti effect will not occur in which of the following transmission lines

 long transmission lines
 medium transmission lines
 short transmission lines
All of these

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Power Systems
If the time of operation of a relay for unity TMS is 10 sec. the time of operation of 0.5 TMS will be _______________ secs.

  5.
 20.
 7.
 3.

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