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Chemical Engineering :: Nuclear Power Engineering

  1. Radioactive decay is a __________ change.

  2. A.
    chemical
    B.
    nuclear
    C.
    physical
    D.
    none of these

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  3. A moderator __________ the neutrons.

  4. A.
    slows down
    B.
    absorbs
    C.
    accelerates
    D.
    reflects

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  5. Thorium can be converted into U-233 in a __________ reactor.

  6. A.
    liquid metal cooled
    B.
    fast breeder
    C.
    thermal
    D.
    swimming pool

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  7. Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

  8. A.
    melting point, hence can be subjected to higher temperature.
    B.
    density ; hence core volume for a given power output would be smaller.
    C.
    resistance to effects of irradiation.
    D.
    all (a), (b) and (c).

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  9. Nuclear fuel complex, Hyderabad is engaged in the job of

  10. A.
    manufacture of nuclear fuel elements/assemblies .
    B.
    processing of uranium ore.
    C.
    treatment of spent fuel.
    D.
    none of these.

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  11. Which is a fertile nuclear fuel ?

  12. A.
    U-233
    B.
    U-235
    C.
    Pu-239
    D.
    Th-232

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  13. The time required for half of the __________ of a radioactive isotope to decay is called its half life.

  14. A.
    nuclei
    B.
    electrons
    C.
    protons
    D.
    neutrons

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  15. The ratio of atomic radius to its nuclear radius is about

  16. A.
    105
    B.
    108
    C.
    1012
    D.
    1015

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  17. Which one is different for the neutral atoms of the isotopes of an element ?

  18. A.
    Atomic weights
    B.
    Atomic numbers
    C.
    Number of protons
    D.
    Number of electrons

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  19. __________ moderator is used in a fast breeder reactor.

  20. A.
    Graphite
    B.
    Heavy water
    C.
    Beryllium
    D.
    No

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