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Power Systems

Power Systems
Which of the following is used in thermal plants

 Rankine cycle
 Otto cycle
All of these
 Joule cycle

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Power Systems
An ACSR conductor has internal inductance 0.05 mH/Km for µr = 1. If this ACSR is replaced with another having µr = 2, then find the internal inductance?

 0.1 mH/Km
 0 mH/Km
 0.05 mH/Km
 0.025 mH/Km

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Power Systems
Mho relay is used for the protection of

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

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Power Systems
Transmission lines are transposed to reduce

 proximity effect
 interference with neighbouring communication lines
 ferranti effect
 skin effect

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Power Systems
Galvanised steel is generally used as

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

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Power Systems
In thermal power plants the size of coal after crushing

  20 - 25 mm.
 200 - 205 mm.
  300 mm.
 40 mm.

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