Power Systems
In boiler water reactor (BWR)

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

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The value of off diagonal elements is

 sum of admittances connected at bus j
 sum of admittances connected at bus i
 which is connected between bus i and bus j with positive sign
 which is connected between bus i and bus j with negative sign

ANSWER DOWNLOAD EXAMIANS APP