Power Systems
For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station?

 Francis
None of these
 Pelton
 Kaplan

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Power Systems
A sodium graphite reactors use

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

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