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  • Question
  • Pick out the correct statement.


  • Options
  • A. Loss of electrons from neutral atoms produces negative ions.
  • B. The radius of nucleus & atomic size are of the order of 10-12 cm & 10-8 cm respectively.
  • C. Gain of electrons by neutral atoms form cations.
  • D. Proton to neutron ratio in a stable nucleus is 2 : 1.

  • Correct Answer
  • The radius of nucleus & atomic size are of the order of 10-12 cm & 10-8 cm respectively. 


  • Nuclear Power Engineering problems


    Search Results


    • 1. Pick out the correct statement.

    • Options
    • A. Positron is the antiparticle of electron.
    • B. In ?-decay, the ratio of neutron to proton decreases.
    • C. Ionising power of ?-rays is higher than that of ?-rays.
    • D. Speed of ?-rays is more than that of ?-rays.
    • Discuss
    • 2. Solar energy results from __________ reaction.

    • Options
    • A. fission
    • B. combustion
    • C. thermonuclear
    • D. none of these
    • Discuss
    • 3. Which of the following accounts for the maximum energy release in the nuclear fission process?

    • Options
    • A. Kinetic energy of fission products
    • B. Radioactive decay of fission products
    • C. Instantaneous release of ?-rays
    • D. Kinetic energy of neutrons
    • Discuss
    • 4. The phenomenon of radioactivity was discovered by

    • Options
    • A. Madam Curie
    • B. Bacquerrel
    • C. Roentgen
    • D. J.J. Thomson
    • Discuss
    • 5. Heavy water plant is not located at

    • Options
    • A. Talcher
    • B. Tuticorin
    • C. Ramagundam
    • D. Kota
    • Discuss
    • 6. The size of an atom is of the order of one

    • Options
    • A. °Angstrom
    • B. fermi
    • C. micron
    • D. mm
    • Discuss
    • 7. Water is a better coolant than a gas (like CO2, He, N2 etc.), because it

    • Options
    • A. is a better neutron moderator as well.
    • B. requires comparatively smaller pumps and heat exchanger for a given heat transfer rate.
    • C. has a better heat transfer characteristics, and it can be pressurised to attain a high temperature.
    • D. all (a), (b) and (c).
    • Discuss
    • 8. Energy produced in the nuclear fission is of the order of __________ MeV.

    • Options
    • A. 20
    • B. 200
    • C. 1000
    • D. 2000
    • Discuss
    • 9. Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent.

    • Options
    • A. 32
    • B. 52
    • C. 72
    • D. 88
    • Discuss
    • 10. Liquid metal (e.g, . molten sodium) is preferred as a coolant in case of a/an __________ reactor.

    • Options
    • A. homogeneous
    • B. graphite moderated
    • C. fast breeder
    • D. enriched uranium (3% U-235) fuelled
    • Discuss


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