Power Plant Engineering
Natural uranium is made up of

99.282% U₂₃₅, 0.712% U₂₃₄, 0.006% U₂₃₈
99.282% U₂₃₅, 0.712% U₂₃₈, 0.06%' U₂₃₄
99.282% U₂₃₄, 0.712% U₂₃₈, 0.006% U₂₃₅
99.282% U₂₃₈, 0.712% U₂₃₅, 0.006% U₂₃₄

ANSWER DOWNLOAD EXAMIANS APP

Power Plant Engineering
A nuclear unit becoming critical means

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

ANSWER DOWNLOAD EXAMIANS APP