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- Question
H2 is a better coolant than CO2, due to its relatively
Options- A. lower density.
- B. higher specific heat.
- C. non-reactivity to uranium.
- D. lower neutron capture cross-section.
- Correct Answer
- higher specific heat.
- 1. Coolant used in a fast breeder reactor is
Options- A. molten sodium
- B. heavy water
- C. ordinary water
- D. helium Discuss
- 2. Bhabha Atomic Research Centre (BARC) located at Trombay (near Bombay) has
Options- A. five operating research reactors (namely Apsara, Cirus Zerelina, Purnima and Dhurva).
- B. a 420 MW nuclear power plant.
- C. a very large capacity (100 tons/yr) heavy water plant.
- D. all (a), (b) and (c). Discuss
- 3. 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
- 4. 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
- 5. Main source of __________ is monazite sand.
Options- A. uranium
- B. polonium
- C. hafnium
- D. thorium Discuss
- 6. The main ore of uranium is
Options- A. pitchblende
- B. monazite sand
- C. cassiterite
- D. chalcopyrite Discuss
- 7. Which of the following is the most harmful for the human being?
Options- A. ?-rays
- B. X-rays
- C. ?-rays
- D. ultra violet rays Discuss
- 8. Use of molten metal as a coolant in fast breeder reactor helps in
Options- A. rapid heat transfer from the core.
- B. accelerating the reaction rate in the core.
- C. breeding neutrons.
- D. accelerating the neutrons. Discuss
- 9. A radioactive isotope undergoes decay with respect to time following __________ law.
Options- A. logarithmic
- B. exponential
- C. linear
- D. inverse square Discuss
- 10. The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the
Options- A. fuel cost per unit power generated is less.
- B. thermal efficiency of the former is higher.
- C. maintenance cost of the former is less.
- D. none of these. Discuss
Nuclear Power Engineering problems
Search Results
Correct Answer: molten sodium
Correct Answer: five operating research reactors (namely Apsara, Cirus Zerelina, Purnima and Dhurva).
Correct Answer: N2
Correct Answer: avoiding the mixing of water with radioactive sodium, as it may cause explosion.
Correct Answer: thorium
Correct Answer: pitchblende
Correct Answer: ?-rays
Correct Answer: rapid heat transfer from the core.
Correct Answer: exponential
Correct Answer: fuel cost per unit power generated is less.
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