Power Systems
In a two plant system, the load is connected to plant number 2. The loss coefficients are

 B11 is non zero,B22 = B12 = 0
 B11,B12 are non zero ,B22 = 0
 B11,B22 are non zero,B12 = 0
 B11,B22,B12 are non zeros

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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, but later bringing it back to K = 1.
 lowering the value of K below 1 but later bringing it back to K = 1.
 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.

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