Power Systems
For which one of the following types of motors, is the equal area criterion for stability applicable?

 DC shunt motor
 DC series motor
 Three phase synchronous motor
 Three phase induction motor

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Power Systems
The power level of nuclear reactor can be increase by ( K = multiplication factor )

 lowering the value of K below and keeping at that lowered value.
 raising the value of K above 1 and keeping it at raised value.
 lowering the value of K below 1 but later bringing it back to K = 1.
  raising the value of K above 1, but later bringing it back to K = 1.

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