Power Systems
Offset mho relay is used for the protection of equipment when

None of these
 failure of prime mover of the generator
 either 1 or 2
 loss of excitation of the generator

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Power Systems
A thermal power station needs space

 less than that required by a gas turbine power plant of same output.
 less than that required by atomic power station of the same output.
 less than that required by the diesel power station of same output.
  less than that required by hydro-power station of same capacity.

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