Nuclear Power Engineering problems
- 1. The size of an atom is of the order of one
Options- A. °Angstrom
- B. fermi
- C. micron
- D. mm Discuss
Correct Answer: °Angstrom
- 2. 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
Correct Answer: all (a), (b) and (c).
- 3. Energy produced in the nuclear fission is of the order of __________ MeV.
Options- A. 20
- B. 200
- C. 1000
- D. 2000 Discuss
Correct Answer: 200
- 4. Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent.
Options- A. 32
- B. 52
- C. 72
- D. 88 Discuss
Correct Answer: 32
- 5. 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
Correct Answer: fast breeder
- 6. Out of the following places, heavy water plant is not located at
Options- A. Baroda
- B. Ramagundam
- C. Talcher
- D. Tuticorin Discuss
Correct Answer: Ramagundam
- 7. Coolant used in a boiling water reactor is
Options- A. hydrogen gas
- B. water
- C. steam
- D. a mixture of water & steam Discuss
Correct Answer: a mixture of water & steam
- 8. The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is
Options- A. less
- B. more
- C. same
- D. much more Discuss
Correct Answer: less
- 9. Uranium is recovered from its ore (pitchblende) by
Options- A. froth floatation technique.
- B. leaching with sulphuric acid.
- C. smelting in a furnace.
- D. dissolving in water. Discuss
Correct Answer: leaching with sulphuric acid.
- 10. Pressure in a Pressurised Water Reactor (PWR) is used for
Options- A. maintaining constant pressure in the primary cooling circuit under varying loads.
- B. superheating the steam.
- C. pressurising the water in the primary coolant circuit.
- D. none of these. Discuss
Correct Answer: maintaining constant pressure in the primary cooling circuit under varying loads.
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