Power Plant Engineering
In nuclear fission

None of the listed here
The electrons of the element change
The original elements change into completely different elements
The molecules rearrange themselves to form other molecules

ANSWER DOWNLOAD EXAMIANS APP

Power Plant Engineering
A nuclear unit becoming critical means

It is generating power to rated capacity
It is capable of generating much more than rated capacity
There is danger of nuclear spread
Chain reaction that causes automatic splitting of the fuel nuclei has been established

ANSWER DOWNLOAD EXAMIANS APP