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- Question
__________ moderator is used in a fast breeder reactor.
Options- A. Graphite
- B. Heavy water
- C. Beryllium
- D. No
- Correct Answer
- No
- 1. Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher
Options- A. melting point, hence can be subjected to higher temperature.
- B. density ; hence core volume for a given power output would be smaller.
- C. resistance to effects of irradiation.
- D. all (a), (b) and (c). Discuss
- 2. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?
Options- A. A+Z
- B. A- Z
- C. A
- D. Z Discuss
- 3. Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.
Options- A. U-238
- B. U-233
- C. U-235
- D. Pu-239 Discuss
- 4. The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then
Options- A. 3/4th of it will disintegrate in two months.
- B. it will completely disintegrate in two months.
- C. it will completely disintegrate in four months.
- D. l/8th of it will remain intact at the end of four months. Discuss
- 5. Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.
Options- A. 1
- B. 2
- C. 3
- D. 7 Discuss
- 6. Nuclear fuel complex, Hyderabad is engaged in the job of
Options- A. manufacture of nuclear fuel elements/assemblies .
- B. processing of uranium ore.
- C. treatment of spent fuel.
- D. none of these. Discuss
- 7. A fertile material is the one, which can be
Options- A. converted into fissile material on absorption of neutron.
- B. fissioned by slow (thermal) neutrons.
- C. fissioned by fast neutrons.
- D. fissioned by either slow or fast neutrons. Discuss
- 8. __________ have the same mass number, but different nuclear charge.
Options- A. Isotopes
- B. Isobars
- C. Isotones
- D. none of these Discuss
- 9. The half life period of a radioactive element depends on its
Options- A. temperature
- B. pressure
- C. amount
- D. none of these Discuss
- 10. Thermal shield is used in high powered nuclear reactors to
Options- A. protect the walls of the reactor from radiation damage.
- B. absorb the fast neutrons.
- C. slow down the secondary neutrons.
- D. protect the fuel element from coming in contact with the coolant. Discuss
Nuclear Power Engineering problems
Search Results
Correct Answer: all (a), (b) and (c).
Correct Answer: A- Z
Correct Answer: U-235
Correct Answer: it will completely disintegrate in two months.
Correct Answer: 3
Correct Answer: manufacture of nuclear fuel elements/assemblies .
Correct Answer: converted into fissile material on absorption of neutron.
Correct Answer: Isobars
Correct Answer: none of these
Correct Answer: protect the walls of the reactor from radiation damage.
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