Power Systems
In a pressurized water reactor

 heavy water is used as both coolant and moderator.
 water is used at high pressure so that it is available is liquid from at about 280° C.
  both B and C.
 the coolant water boils in the reactor core.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In boiler water reactor (BWR)

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

ANSWER DOWNLOAD EXAMIANS APP