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Choose the correct statement: I. the function of the moderator in a nuclear reac

ID: 681598 • Letter: C

Question

Choose the correct statement:
I. the function of the moderator in a nuclear reactor is toabsorb fast moving neutrons II. Ionizing radiation produces free radicals, molecularfragments with one or more unpaired electron. III. The most penetrating radiation is radiation IV. No uranium enrichment is necessary in a heavy-waternuclear reactor V. Nuclear fission is accompanied by the evolution of largeamount of energy, while in nuclear fusion, a large amount of energyis required to bring about the fusion of two nuclei.
A. all the statements are correct B. II,III,and IV C. II,III, and V D. I,III,IV E. III only
I. the function of the moderator in a nuclear reactor is toabsorb fast moving neutrons II. Ionizing radiation produces free radicals, molecularfragments with one or more unpaired electron. III. The most penetrating radiation is radiation IV. No uranium enrichment is necessary in a heavy-waternuclear reactor V. Nuclear fission is accompanied by the evolution of largeamount of energy, while in nuclear fusion, a large amount of energyis required to bring about the fusion of two nuclei.
A. all the statements are correct B. II,III,and IV C. II,III, and V D. I,III,IV E. III only

Explanation / Answer

We Know that :      The Nuclear Reactors generally use tocarry Nuclear - fission Reaction the following statementsare true with respect           to theNuclear reactors are :      II Ionizing radiation producesfree radicals, molecular fragments with one or more unpairedelectrons.        III The most penetratingradiation is radiation          IV No uranium enrichmentis necessary in a heavy-water nuclear reactor            The function of the moderator is toslow down the neutrons produced from the fissioning of the fuel .Heavy wate(D2O)        is used as the moderator . Controlling rodswill absorb the fast moving neutrons , cadmium rods used asthe controlling     rods.                          option c is correct.        III The most penetratingradiation is radiation          IV No uranium enrichmentis necessary in a heavy-water nuclear reactor            The function of the moderator is toslow down the neutrons produced from the fissioning of the fuel .Heavy wate(D2O)        is used as the moderator . Controlling rodswill absorb the fast moving neutrons , cadmium rods used asthe controlling     rods.                          option c is correct.