Power Systems
For harnessing low variable water heads, the suitable hydraulic turbine with high percentage of reaction and runner adjust vanes is

  Kaplan.
  Pelton.
  Francis.
  Impeller.

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

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

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