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  • Question
  • A fertile material is the one, which can be


  • Options
  • A. converted into fissile material on absorption of neutron.
  • B. fissioned by slow (thermal) neutrons.
  • C. fissioned by fast neutrons.
  • D. fissioned by either slow or fast neutrons.

  • Correct Answer
  • converted into fissile material on absorption of neutron. 


  • Nuclear Power Engineering problems


    Search Results


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

    • Options
    • A. manufacture of nuclear fuel elements/assemblies .
    • B. processing of uranium ore.
    • C. treatment of spent fuel.
    • D. none of these.
    • Discuss
    • 2. __________ moderator is used in a fast breeder reactor.

    • Options
    • A. Graphite
    • B. Heavy water
    • C. Beryllium
    • D. No
    • Discuss
    • 3. Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher

    • Options
    • 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).
    • Discuss
    • 4. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?

    • Options
    • A. A+Z
    • B. A- Z
    • C. A
    • D. Z
    • Discuss
    • 5. Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.

    • Options
    • A. U-238
    • B. U-233
    • C. U-235
    • D. Pu-239
    • Discuss
    • 6. __________ have the same mass number, but different nuclear charge.

    • Options
    • A. Isotopes
    • B. Isobars
    • C. Isotones
    • D. none of these
    • Discuss
    • 7. The half life period of a radioactive element depends on its

    • Options
    • A. temperature
    • B. pressure
    • C. amount
    • D. none of these
    • Discuss
    • 8. Thermal shield is used in high powered nuclear reactors to

    • Options
    • A. protect the walls of the reactor from radiation damage.
    • B. absorb the fast neutrons.
    • C. slow down the secondary neutrons.
    • D. protect the fuel element from coming in contact with the coolant.
    • Discuss
    • 9. Thorium can be converted into U-233 in a __________ reactor.

    • Options
    • A. liquid metal cooled
    • B. fast breeder
    • C. thermal
    • D. swimming pool
    • Discuss
    • 10. Which one is different for the neutral atoms of the isotopes of an element?

    • Options
    • A. Atomic weights
    • B. Atomic numbers
    • C. Number of protons
    • D. Number of electrons
    • Discuss


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