Power Systems
Gas coolled reactor

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

ANSWER DOWNLOAD EXAMIANS APP

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 moderator and graphite as coolant.
  sodium as coolant and graphite as moderator.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In boiler water reactor (BWR)

 there is danger of radioactive contamination of steam.
 enriched uranium is used as fuel.
  all of above.
 the feed water acts both coolant and a moderator.

ANSWER DOWNLOAD EXAMIANS APP