Power Systems
Gas coolled reactor

 use CO2. or helium as coolant and graphite the moderator.
 use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c.
  both B and C.
 use heavy water as coolant as well as moderator.

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Power Systems
The draft tube is provided to

 reduce the effect of water hammer.
None of these
 raise the water surface of the stream to create an artificial head.
  increase the acting head on the water wheel.

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Power Systems
Which of the following is/are the advantages of synchronous phase modifier over the shunt compensation?

 single unit can be used as both capacitance and inductor by adjusting the excitation
 initial cost is low
 smooth voltage regulation is possible by controlling excitation
 both 1 and 2

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