Q70
A nuclear unit becoming critical means
A.
It is generating power to rated capacity
B.
It is capable of generating much more than rated capacity
C.
There is danger of nuclear spread
D.
Chain reaction that causes automatic splitting of the fuel nuclei has been established
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
A nuclear unit becoming critical means Chain reaction that causes automatic splitting of the fuel nuclei has been established when the reactor is in a configuration such that one neutron from each atom fissioned causes another fission and then the reactor is said to be critical