Power Systems
High capacity generators and motors are of

 star connected network
 any of the above
 delta connected network
 star connected with grounding network

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Power Systems
Per unit of any quantity is defined as

 base value of quantity /actual value of quantity in different units
 actual value of quantity /base value of quantity in different units
 actual value of quantity /base value of quantity in same units
 base value of quantity /actual value of quantity in same units

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Power Systems
In a pressurized water reactor

 the coolant water boils in the reactor core.
 water is used at high pressure so that it is available is liquid from at about 280° C.
 heavy water is used as both coolant and moderator.
  both B and C.

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