Discussion
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- Question
"Critical mass" is the minimum mass of nuclear fissile material required for the
Options- A. sustainment of chain reaction.
- B. power generation on commercial scale.
- C. economic power generation.
- D. none of these.
- Correct Answer
- sustainment of chain reaction.
- 1. What is the average life of a radioactive atom having a 'half life period' of T?
Options- A. 1.44 T
- B. 0.144 T
- C. 14.4 T
- D. 2T Discuss
- 2. The disintegration rate of a radioactive element
Options- A. progressively increases.
- B. progressively decreases.
- C. remains constant throughout.
- D. may increase or decrease depending on the material. Discuss
- 3. The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is
Options- A. 1
- B. 0.5
- C. 2
- D. 4 Discuss
- 4. 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
- 5. Unit of radioactivity is
Options- A. barn
- B. fermi
- C. angstrom
- D. curie Discuss
- 6. Heavy water is preferred over ordinary water as a coolant, because it.
Options- A. acts both as an efficient coolant as well as a moderator.
- B. can be heated to a higher temperature without pressurizing.
- C. is less prone to radiation damage.
- D. all (a), (b) and (c). Discuss
- 7. Neutrons have mass approximately equal to that of __________ atoms.
Options- A. hydrogen
- B. helium
- C. deuterium
- D. none of these Discuss
- 8. The main ore of thorium is
Options- A. pitchblende
- B. monazite sand
- C. limonite
- D. galena Discuss
- 9. Function of control rod in a nuclear reactor is to control
Options- A. temperature
- B. pressure
- C. fuel consumption
- D. absorption of neutrons Discuss
- 10. The number of neutrons in the nucleus of Uranium-233 (92U233) is
Options- A. 141
- B. 92
- C. 233
- D. 325 Discuss
Nuclear Power Engineering problems
Search Results
Correct Answer: 1.44 T
Correct Answer: progressively decreases.
Correct Answer: 1
Correct Answer: natural uranium fuelled heavy water cooled & moderated
Correct Answer: curie
Correct Answer: all (a), (b) and (c).
Correct Answer: hydrogen
Correct Answer: monazite sand
Correct Answer: absorption of neutrons
Correct Answer: 141
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