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  • Question
  • The decrease in the atomic number is not observed in case of


  • Options
  • A. electron capture
  • B. ?-emission
  • C. ?-emission
  • D. positron emission

  • Correct Answer
  • ?-emission 


  • Nuclear Power Engineering problems


    Search Results


    • 1. Gas cooling as compared to water cooling of nuclear reactors

    • Options
    • A. can not attain a high temperature.
    • B. is more efficient as gas has a higher specific heat.
    • C. can produce only saturated steam for feeding to power turbine.
    • D. none of these.
    • Discuss
    • 2. The atomic number of a radioactive element is not changed, when it emits __________ rays.

    • Options
    • A. ?
    • B. ?
    • C. ?
    • D. ? & ?
    • Discuss
    • 3. Spent fuel from the nuclear thermal reactor contains

    • Options
    • A. fission products
    • B. plutonium
    • C. unused fuel
    • D. all (a), (b) & (c)
    • Discuss
    • 4. Commercial power generation from fusion reactor is not yet possible, because

    • Options
    • 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.
    • Discuss
    • 5. Molten sodium (as a coolant in fast breeder reactor)

    • Options
    • A. can't attain high temperature at normal pressure.
    • B. is not at all corrosive, even at a higher temperature.
    • C. is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water.
    • D. none of these
    • Discuss
    • 6. Out of the followingplaces, a nuclear power plant is not located at

    • Options
    • A. Talcher (Orissa)
    • B. Kaiga (Karnataka)
    • C. Rawatbhata (Rajsthan)
    • D. Kalpakkam (Tamilnadu)
    • Discuss
    • 7. Which of the following is artificially produced as it does not occur in nature?

    • Options
    • A. Uranium-235
    • B. Uranium-233
    • C. Plutonium-239
    • D. Both (b) and (c)
    • Discuss
    • 8. In a nuclear explosion, the energy is released primarily in the form of __________ energy-

    • Options
    • A. potential
    • B. thermal
    • C. kinetic
    • D. electrical
    • Discuss
    • 9. Fast breeder reactors do not

    • Options
    • 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.
    • Discuss
    • 10. The atomic number of an element is equal to the number of __________ present in its atom.

    • Options
    • A. neutrons
    • B. electrons
    • C. protons
    • D. either (b) or (c)
    • Discuss


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