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Chemical Engineering :: Nuclear Power Engineering

  1. The decay product of tritium (a beta emitter) is

  2. A.
    lithium
    B.
    helium
    C.
    deuterium
    D.
    hydrogen

  3. Heat is generated in a nuclear reactor (thermal) by

  4. A.
    combustion of a nuclear fuel e.g. uranium.
    B.
    fusion of atoms of uranium.
    C.
    absorption of neutrons in uranium atoms.
    D.
    fission of U-235 by neutrons.

  5. The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years.

  6. A.
    24
    B.
    18
    C.
    6
    D.
    36

  7. Which of the following may not need a moderator ?

  8. A.
    Candu reactor
    B.
    Fast breeder reactor
    C.
    Homogeneous reactor
    D.
    Pressurised water reactor

  9. The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.

  10. A.
    3.125
    B.
    6.25
    C.
    12.50
    D.
    25

  11. Fast breeder reactors do not

  12. A.
    use Th-232 as fissile fuel.
    B.
    convert fertile material to fissile material.
    C.
    use fast neutrons for fission.
    D.
    use molten sodium as coolant.

  13. Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor.

  14. A.
    thermal
    B.
    fast breeder
    C.
    heavy water moderated
    D.
    enriched uranium

  15. Which of the following may not need a control rod ?

  16. A.
    Liquid metal cooled reactor.
    B.
    Fast breeder reactor.
    C.
    Candu reactor.
    D.
    None of these.

  17. One 'amu' is equivalent to

  18. A.
    9.31 MeV
    B.
    931 eV
    C.
    931 Mev
    D.
    931J

  19. Commercial power generation from fusion reactor is not yet possible, because

  20. A.
    it is difficult to control fusion reaction.
    B.
    the fuel required (e.g. deuterium and tritium) is scarce.
    C.
    it is difficult to initiate fusion reaction.
    D.
    quantity of fuel required for initiating fusion reaction is prohibitively high.