Nuclear Power Engineering problems
- 1. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).
Options- A. 15
- B. 45
- C. 65
- D. 85 Discuss
Correct Answer: 85
- 2. Uranium ore is currently mined & concentrated at
Options- A. Jadugoda
- B. Ghatsila
- C. Khetri
- D. Alwaye Discuss
Correct Answer: Jadugoda
- 3. Fuel for a nuclear reactor (thermal) is
Options- A. uranium
- B. plutonium
- C. radium
- D. none of these Discuss
Correct Answer: uranium
- 4. Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to
Options- A. 10-24 cm2
- B. 10-12 cm
- C. 1 Angstrom
- D. 10-24 cm Discuss
Correct Answer: 10-24 cm2
- 5. The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about __________ metres/second.
Options- A. 1100
- B. 2200
- C. 3300
- D. 4400 Discuss
Correct Answer: 2200
- 6. Specific gravity of uranium and plutonium is about
Options- A. 9
- B. 13
- C. 19
- D. 27 Discuss
Correct Answer: 19
- 7. Radioactive decay is a __________ change.
Options- A. chemical
- B. nuclear
- C. physical
- D. none of these Discuss
Correct Answer: nuclear
- 8. Which of the following is not used as a nuclear fuel cladding material?
Options- A. Zircalloy
- B. Cadmium
- C. Ceramics
- D. Stainless steel Discuss
Correct Answer: Cadmium
- 9. Which one is radioactive in nature?
Options- A. Helium
- B. Deuterium
- C. Heavy hydrogen
- D. Tritium Discuss
Correct Answer: Tritium
- 10. Thorium metal
Options- A. resembles steel in appearance.
- B. is less hard (in the range of silver).
- C. is highly ductile.
- D. all (a), (b) and (c). Discuss
Correct Answer: all (a), (b) and (c).
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