Power Plant Engineering
Ferrite material is

The most fissionable material
Basic raw material for nuclear plants
The material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material
The basic fuel for nuclear paints

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Power Plant Engineering
A nuclear unit becoming critical means

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

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