Power Systems
Which of the following is a reaction turbines

  Pelton turbine and Francis turbine.
  Kaplan and Pelton turbine.
  Francis turbine and Kaplan turbine.
  None of these.

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Power Systems
A sodium graphite reactors use

 a mixture of sodium and graphite as moderator.
  sodium as coolant and graphite as moderator.
 a mixture of sodium and graphite as coolant.
 sodium as moderator and graphite as coolant.

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