Discussion
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- Question
The molecular weight of heavy water is
Options- A. 10
- B. 18
- C. 20
- D. 36
- Correct Answer
- 20
- 1. Pick out the wrong statement.
Options- A. The disintegration rate of a radioactive substance can not be increased by heating it.
- B. Electrons have negligible mass and unit negative change.
- C. Deuterium atom has one proton and two neutrons in its nucleus.
- D. Cadmium is capable of absorbing neutrons. Discuss
- 2. Which of the following is a fuel for a fusion reactor (thermonuclear reactor)?
Options- A. Deuterium and tritium
- B. U-233
- C. Thorium
- D. Heavy water Discuss
- 3. Which is not a fissile nuclear material?
Options- A. U-233
- B. U-235
- C. U-238
- D. Pu-239 Discuss
- 4. Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.
Options- A. fuel elements
- B. operating personnels
- C. walls of the reactor
- D. none of these Discuss
- 5. Radioactivity of an isotope is expressed in
Options- A. barn
- B. MeV
- C. Curie
- D. Ergs Discuss
- 6. 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
- 7. 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
- 8. Isotopes of an element have the same
Options- A. number of neutrons
- B. mass number
- C. electronic configuration
- D. atomic weight Discuss
- 9. 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
- 10. The phenomenon of nuclear fission is opposite to that of
Options- A. radioactive decay
- B. thermionic emission
- C. nuclear fusion
- D. combustion Discuss
Nuclear Power Engineering problems
Search Results
Correct Answer: Deuterium atom has one proton and two neutrons in its nucleus.
Correct Answer: Deuterium and tritium
Correct Answer: U-238
Correct Answer: operating personnels
Correct Answer: Curie
Correct Answer: more atomic weight and less atomic number.
Correct Answer: be free from radiation damage and non-corrosive.
Correct Answer: electronic configuration
Correct Answer: fuel are present in different phases (e.g. uranium and heavy water).
Correct Answer: nuclear fusion
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