Power Systems
Which of the following is/are the disadvantages of phase modifiers?

 It consumes both active and reactive power
 It requires more maintenance because of running equipment
 Initial cost of synchronous phase modifier is higher
All of these

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

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

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