UPSC General Studies Sample Paper General Studies Sample Paper-2

  • question_answer
    Consider the following statements.
    1. Natural uranium consists of 100% U-238.
    2. The fission process by which heat energy is released in a nuclear reactor, takes place mainly in
    3. Nuclear power plants require fuel with U-235 enriched upto a level of 10%.
    Which of the statement(s) given above is/are correct?

    A)  1 and 2           

    B)  Only 2

    C)  2 and 3           

    D)  All of these

    Correct Answer: B

    Solution :

    [b] Natural uranium consists primarily of two isotopes, 99.3% is U-238 and 0.7% is U-235. Most nuclear power plants require fuel with U-235 enriched to a level of 3-5%. To increase the concentration of U-235, uranium must be enriched.

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