Power Systems
On what factors does the selection of a water turbine depend

 Working head.
 Nature of load.
 Speed.
  All of above.

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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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Power Systems
Which of the following statement is/are true?Zn

 The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit
 both 1 and 2
 nether 1 nor 2
 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit

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