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- Question
Heavy water used in the nuclear reactors to slow down the speed of neutrons is
Options- A. highly purified water.
- B. a compound of oxygen and deuterium.
- C. water having dissolved salts of heavy metals.
- D. none of these.
- Correct Answer
- a compound of oxygen and deuterium.
- 1. Fast breeder reactors are most usable in India, because of our largest __________ deposits.
Options- A. thorium
- B. plutonium
- C. uranium
- D. none of these Discuss
- 2. The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm.
Options- A. 1/4
- B. 1/8
- C. 1/2
- D. 1/16 Discuss
- 3. Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is __________ kgf/cm2 .
Options- A. 0.2
- B. 7
- C. 35
- D. 50 Discuss
- 4. Nucleus of tritium has __________ neutrons.
Options- A. 1
- B. 2
- C. 3
- D. 5 Discuss
- 5. A fast breeder reactor
Options- A. utilises fast neutrons for causing fission.
- B. converts fertile material (e.g., U-238) into fissile material (Pu-239).
- C. normally employs molten sodium as coolant.
- D. all (a), (b) and (c). Discuss
- 6. The first underground nuclear test was conducted by India at
Options- A. Jaisalmer
- B. Pokharan
- C. Kalpakkam
- D. Narora Discuss
- 7. Which of the following nuclear materials is fissile?
Options- A. Uranium-238
- B. Thorium-232
- C. Plutonium-239
- D. None of these Discuss
- 8. Pick out the wrong statement.
Options- A. The ratio of the density of the 'nucleus' to that of the 'atom' is 1012 .
- B. ?-particle is identical with a doubly charged helium ion.
- C. The mass of deuterium atom is half that of helium atom.
- D. Gamma rays are high energy electrons. Discuss
- 9. Unit of radioactivity is
Options- A. barn
- B. fermi
- C. angstrom
- D. curie Discuss
- 10. Candu reactor is a __________ nuclcear reactor.
Options- A. natural uranium fuelled heavy water cooled & moderated
- B. highly enriched uranium (85% U-235) fuelled
- C. homogeneous
- D. fast breeder Discuss
Nuclear Power Engineering problems
Search Results
Correct Answer: thorium
Correct Answer: 1/16
Correct Answer: 7
Correct Answer: 2
Correct Answer: all (a), (b) and (c).
Correct Answer: Pokharan
Correct Answer: Plutonium-239
Correct Answer: Gamma rays are high energy electrons.
Correct Answer: curie
Correct Answer: natural uranium fuelled heavy water cooled & moderated
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