Power Systems
The only place where slip ring induction motors used in thermal power plants is

  coal handling plant.
  lubrication oil pumps.
  none of above.
  conveyors.

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Power Systems
A thermal power station needs space

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

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