Nuclear Power Engineering problems
- 1. Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor?
Options- A. Molten sodium cooled
- B. CO2 gas cooled
- C. Pressurised water
- D. Boiling water Discuss
Correct Answer: Boiling water
- 2. 'Heavy water' is termed as 'heavy' because it is
Options- A. denser than water.
- B. an oxide of deuterium.
- C. a heavy liquid.
- D. an oxide of heavier isotope of oxygen. Discuss
Correct Answer: an oxide of deuterium.
- 3. Which of the following is present in Bhabha Atomic Research Centre (BARC) complex, Trombay (Bombay)?
Options- A. Power reactor
- B. Research reactor
- C. Fast breeder reactor
- D. Heavy water plant Discuss
Correct Answer: Research reactor
- 4. Which of the following is the best nuclear fuel?
Options- A. Np- 239
- B. U-234
- C. Pu-239
- D. Th-236 Discuss
Correct Answer: Pu-239
- 5. A pressurised water reactor (PWR) uses pressurised water as a
Options- A. coolant.
- B. working fluid in power turbine.
- C. moderator.
- D. none of these. Discuss
Correct Answer: coolant.
- 6. Extraction of uranium from its ore is done by __________ method.
Options- A. chemical
- B. pyrometallurgical
- C. physical beneficiation
- D. electrometallurgical Discuss
Correct Answer: chemical
- 7. 75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.
Options- A. 3/4
- B. 1/6
- C. 3
- D. 4 Discuss
Correct Answer: 3
- 8. The atomic mass of an element is fractional, because
Options- A. of uncertainty principle.
- B. it may have isobars.
- C. it contains neutrons.
- D. it may have isotopes. Discuss
Correct Answer: it may have isotopes.
- 9. Positron is a/an
Options- A. nucleus having two protons.
- B. helium nucleus.
- C. electron with positive charge.
- D. nucleus with one proton and one neutron. Discuss
Correct Answer: electron with positive charge.
- 10. 'Light water' used as a coolant in nuclear reactor is nothing but
Options- A. ordinary water.
- B. mildly acidic (pH = 6) water.
- C. mildly alkaline (pH = 8) water.
- D. none of these. Discuss
Correct Answer: ordinary water.
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