Power Systems
If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have

 unity power factor
 zero power factor
 0.707 lagging power factor
 0.707 leading power factor

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Power Systems
A CANDU reactor uses

 only fertile materials.
 highly enriched uranium as fuel and water as moderator and coolant.
  natural uranium as fuel and heavy water as moderator and coolant.
 enriched uranium as fuel and ordinary water as moderator and cooler.

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

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

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