Nuclear Power Engineering problems
- 1. Which of the following may not need a moderator?
Options- A. Candu reactor
- B. Fast breeder reactor
- C. Homogeneous reactor
- D. Pressurised water reactor Discuss
Correct Answer: Fast breeder reactor
- 2. MeV is the unit of
Options- A. radioactivity
- B. energy
- C. potential difference
- D. none of these Discuss
Correct Answer: energy
- 3. Energy equivlant to one atomic mass unit (amu) is __________ MeV.
Options- A. 9.31
- B. 93.1
- C. 931
- D. 9310 Discuss
Correct Answer: 931
- 4. The second underground nuclear test was conducted by India at
Options- A. Jaisalmer
- B. Pokhran
- C. Kalpakkan
- D. Narora Discuss
Correct Answer: Pokhran
- 5. Fission of U-235 on slow neutron bombardment can be represented by
Options- A. 92U235 + 3 ?1 → 56Ba143 + 36Kr90
- B. 92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1
- C. 92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1 + Q (energy)
- D. 92U235 + 0n1 → 92U236 + 30n1+ Q (energy) Discuss
Correct Answer: 92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1 + Q (energy)
- 6. Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor.
Options- A. thermal
- B. fast breeder
- C. heavy water moderated
- D. enriched uranium Discuss
Correct Answer: fast breeder
- 7. Which of the following is not a naturally occurring nuclear fuel?
Options- A. Uranium-238
- B. Thorium-233
- C. Plutonium-239
- D. None of these Discuss
Correct Answer: Plutonium-239
- 8. Which is used as a coolant in nuclear reactor due to its high capture cross-section?
Options- A. H2
- B. N2
- C. He
- D. CO2 Discuss
Correct Answer: H2
- 9. 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
Correct Answer: is highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water.
- 10. 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
Correct Answer: it is difficult to control fusion reaction.
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