Nuclear Power Engineering problems
- 1. Atoms of U-238 and U-235 differ in structure by three
Options- A. electrons and three protons
- B. protons
- C. neutrons
- D. electrons Discuss
Correct Answer: neutrons
- 2. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
Options- A. 159
- B. 1837
- C. 2537
- D. 10000 Discuss
Correct Answer: 1837
- 3. An element having large number of __________ is most easily subjected to nuclear fission.
Options- A. protons
- B. electrons
- C. neutrons
- D. nucleons Discuss
Correct Answer: nucleons
- 4. The main purpose of control rod in a nuclear reactor is to control the
Options- A. chain reaction and hence the power output by regulating the number of secondary neutrons causing fission.
- B. emission of hazardous radiation.
- C. conversion of fissile material into fertile material.
- D. velocity of the secondary neutrons. Discuss
Correct Answer: chain reaction and hence the power output by regulating the number of secondary neutrons causing fission.
- 5. Heavy water (D2O) in a nuclear reactor serves as a
Options- A. coolant
- B. moderator
- C. both (a) & (b)
- D. neutron absorber Discuss
Correct Answer: both (a) & (b)
- 6. Which of the following is a non-fissile material?
Options- A. Plutonium-239
- B. Uranium-235
- C. Uranium-233
- D. Thorium-232 Discuss
Correct Answer: Thorium-232
- 7. Which one is different for the neutral atoms of the isotopes of an element?
Options- A. Atomic weights
- B. Atomic numbers
- C. Number of protons
- D. Number of electrons Discuss
Correct Answer: Atomic weights
- 8. First experimental observation of nuclear fission was done by
Options- A. Plane
- B. Rutherford
- C. Fermi
- D. Hahn and Strassman Discuss
Correct Answer: Fermi
- 9. 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
Correct Answer: all (a), (b) and (c).
- 10. Nucleus of tritium has __________ neutrons.
Options- A. 1
- B. 2
- C. 3
- D. 5 Discuss
Correct Answer: 2
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