Nuclear Power Engineering problems
- 1. The emission of an a-particle causes the resultant nucleus to have
Options- A. more atomic weight and less atomic number.
- B. less atomic weight and less atomic number.
- C. less atomic weight and more atomic number.
- D. none of these. Discuss
Correct Answer: more atomic weight and less atomic number.
- 2. An ideal coolant for a nuclear reactor should
Options- A. be a good absorber of neutrons.
- B. be capable of attaining high temperature, only when it is pressurised.
- C. have high density, but low heat transfer co-efficient.
- D. be free from radiation damage and non-corrosive. Discuss
Correct Answer: be free from radiation damage and non-corrosive.
- 3. Isotopes of an element have the same
Options- A. number of neutrons
- B. mass number
- C. electronic configuration
- D. atomic weight Discuss
Correct Answer: electronic configuration
- 4. A heterogeneous reactor is the one, in which the moderator and the
Options- A. coolant are different materials.
- B. coolant are present in different phases (e.g., heavy water and graphite).
- C. fuel are present in different phases (e.g. uranium and heavy water).
- D. none of these. Discuss
Correct Answer: fuel are present in different phases (e.g. uranium and heavy water).
- 5. The phenomenon of nuclear fission is opposite to that of
Options- A. radioactive decay
- B. thermionic emission
- C. nuclear fusion
- D. combustion Discuss
Correct Answer: nuclear fusion
- 6. A thermal nuclear reactor compared to a fast breeder reactor
Options- A. uses slower neutrons for fission.
- B. uses faster neutrons for fission.
- C. gives higher power density.
- D. requires less fuel to run at the same power level. Discuss
Correct Answer: uses slower neutrons for fission.
- 7. Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.
Options- A. 0.71
- B. 6.31
- C. 99.29
- D. 12.73 Discuss
Correct Answer: 0.71
- 8. Heavy water is used as a moderator in a
Options- A. pressurised water reactor (PWR).
- B. boiling water reactor (BWR).
- C. Candu reactor.
- D. molten sodium cooled reactor. Discuss
Correct Answer: Candu reactor.
- 9. Isotopes of an element have different
Options- A. mass number
- B. electronic configuration
- C. nuclear charge
- D. chemical properties Discuss
Correct Answer: mass number
- 10. The new nucleus formed after ?-decay of a radioactive element has
Options- A. less atomic number
- B. less atomic weight
- C. more atomic number
- D. more atomic weight Discuss
Correct Answer: less atomic number
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