Which of the Following Statements Regarding a Fission Based Nuclear

question 26

Multiple Choice

Which of the following statements regarding a fission based nuclear reactor is not correct?

• A)A nuclear fission reactor uses the heat energy released by the fission of U-235 to produce steam.
• B)The control rods in a nuclear reactor contain materials which absorb neutrons.
• C)The moderator in a fission reactor slows down the neutrons produced from the fission of U-235.
• D) (heavy water),graphite,and H₂O (light water)have been used as moderators in fission reactors.
• E)The uranium dioxide fuel pellets used in a U.S.light-water reactor are made up mostly of the U-235 isotope.

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