Power Plant Engineering
A fission chain reaction in uranium can be developed

None of these
By slowing down fast neutrons so that U₂₃₅ fission continues by slow neutron
By increasing the contents of U₂₃₅
Both (A) and (B)

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Power Plant Engineering
A nuclear unit becoming critical means

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

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