Power Systems
Thermal shielding is provided to

 prevent the reactor wall from getting heated.
 protected the operating personal from exposure to radiations.
 absorb the fast neutron.
All of these

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
In a biased differential relay the bias is defined as the ratio of

  fault current and restraining coil current.
  fault current and operating coil current.
  operating coil current and restraining coil current.
  number of turns of restraining and operating coil.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Critical mass is

 a mass of fissionable material required to stop a chain reaction.
 maximum mass of fissionable material required to sustain a chain reaction.
  minimum mass of fissionable material required to sustain chain reaction.
 none of these.

ANSWER DOWNLOAD EXAMIANS APP