Power Plant Engineering
Natural uranium is made up of

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

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Power Plant Engineering
Pick up the wrong statement

In a heterogeneous or solid fuel reactor, the fuel is mixed in a regular pattern within moderator
Fast reactor uses moderator
Slow or thermal neutrons have energy of the order or 0.025 eV
Fast neutrons have energies above 1000 eV

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Power Plant Engineering
In nuclear fission

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

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