Power Systems
In nuclear chain fission reaction each neutron causing fission produces

 less than one new neutron.
 one new neutron.
  at least one new neutron.
 no new neutron.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Gross head of an hydroelectric power station is

  the difference of water level between the level in storage and tail race.
 the height of water level in the river where the tail race is provided.
 the height of water level in the river where the storage is provided.
 all of above.

ANSWER DOWNLOAD EXAMIANS APP