Power Systems
Which of the following statements is/are true? By increasing of temperature,

 sag increase
 tension decrease
 both 1 and 2
 neither 1 nor 2

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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 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.

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