Nuclear Power Engineering problems
- 1. Extraction of uranium from its ore is done using __________ methods.
Options- A. electrometallurgical
- B. pyrometallurgical
- C. chemical
- D. physical beneficiation Discuss
Correct Answer: chemical
- 2. Pick out the wrong statement.
Options- A. Atoms with same number of nucleons but different number of protons are called isobars.
- B. Atoms with same number of protons but different number of nucleons are called isoters.
- C. Out of ?, ?, and ?-rays, the one having maximum penetration power are ?-rays.
- D. The product formed by emission of ?-particle has mass number less by 4 units than the parent nuclide. Discuss
Correct Answer: Atoms with same number of protons but different number of nucleons are called isoters.
- 3. U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about __________ percent.
Options- A. 85
- B. 50
- C. 3
- D. 97 Discuss
Correct Answer: 3
- 4. Coolant present in the primary circuit of a pressurised water reactor is high pressure
Options- A. sub cooled water
- B. saturated water
- C. superheated steam
- D. saturated steam Discuss
Correct Answer: saturated water
- 5. Nuclear power reactor located at Tarapur is of __________ type.
Options- A. fast breeder
- B. pressurised water
- C. boiling water
- D. gas cooled Discuss
Correct Answer: boiling water
- 6. In the nuclear reaction, 93N239→ 94Pu239 +?; the missing particle is a/an
Options- A. electron
- B. proton
- C. neutron
- D. position Discuss
Correct Answer: electron
- 7. Percentage of natural uranium present in uranium ore found in Jadugoda (Jharkhand) is
Options- A. 0.1
- B. 1
- C. 3
- D. 12 Discuss
Correct Answer: 0.1
- 8. Main source of __________ is monazite sand.
Options- A. uranium
- B. polonium
- C. hafnium
- D. thorium Discuss
Correct Answer: thorium
- 9. Secondary cooling circuit is a must in molten sodium cooled fast breeder reactor for
Options- A. achieving high degree of superheat in the steam.
- B. faster heat removal rate from the core.
- C. lowering the coolant circulation pressure.
- D. avoiding the mixing of water with radioactive sodium, as it may cause explosion. Discuss
Correct Answer: avoiding the mixing of water with radioactive sodium, as it may cause explosion.
- 10. Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor?
Options- A. N2
- B. He
- C. CO2
- D. H2 Discuss
Correct Answer: N2
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