Power Systems
In relay coil which is used?

  Power transformer.
  Current transformer.
  Potential transformer.
  Instrument transformer.

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Power Systems
In Rankine cycle, the work output from a turbine is given by

  change in temperature between inlet and outlet.
  change in internal energy between inlet and outlet.
  change of entropy between inlet and outlet.
  change of enthalpy between inlet and outlet.

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