Nuclear Power Plants LAB VIVA Questions :-
1. Energy derived from the fission of the nuclei of heavy elements (uranium or thorium), or from the fusion of the nuclei of light elements(deuterium or tritium).
2. Reaction caused by changes in the electron structure surrounding the nucleus.
3. Reaction which occurs when the particles making up the nucleus of an atom are rearranged.
4. Theoretically, the irreducible constituents of the material world.
5. Except for the electron and proton, all the fundamental particles are …..i
6. Electrons emitted by radio-active atoms.
7. It is identical to the nucleus of the hydrogen atom.
8. It has a mass approximately equal to that of the proton.
9. It can’t be detected by subjecting it to electric or magnetic fields, nor can its presence be shown by its passage through cloud chambers.
10. The basic unit of any chemical element.
11. The number of electrons associated with an atom determines its
12. Elements which have identical chemical characteristics but different atomic weights.
13 _____ has three isotopes.
14. The work required to disintegrate an atom completely into protons and neutrons.
15. An unstable nucleus undergoes atomic disintegration by emitting a, ji, ji+, y or X-ray electromagnetic radiation.
16. The alpha particle is identical with nucleus of a _____atom.
17. A particle whose mass is the same as that of an electron and whose charge is equal in magnitude but opposite in sign.
18. A technique used to determine the molecular and crystalline structure of materials.
19. A heat source which requires no oxygen.
20. Those isotopes of uranium and plutonium which fission upon interaction with thermal neutrons.
21. Those isotopes of uranium and plutonium which have even atomic weights.
22. Materials capable of reducing neutron energy very rapidly.
23. A technique used to determine the molecular and crystalline structure of materials.
24. Most widely used and planned power reactor.
25. A nuclear reactor that produces more fissionable material than it consumes.
26. Unmoderated liquid-metal-cooled reactors operating at extremely high power density.
27. Those isotopes of uranium and plutonium which fission on integration with thermal neutrons.
28. Those isotopes of uranium and plutonium which fission upon interaction with thermal neutrons.
29. Materials capable of reducing neutron energy very rapidly.
30. Materials having high cross section for absorption of neutrons.
31. The main objective of reactor design during reactor operation.
32. The ratio (of number of fissile nuclides produced by the capture of neutrons by the fertile nuclides to the number of fissile nuclides) being greater than unity.
33. Tolerance radiation level.
34. Device for direct conversion of solar radiation into electricity.
ANSWERS::
1. nuclear energy
2. chemical reaction
3. nuclear reaction
4. fundamental particles
5. unstable
6. beta rays
7. proton
8. neutron
9. neutron
10. atom
11. chemical characteristics
12. isotopes
13. hydrogen
14. binding energy
15. radioactivity
16. helium
17. positron
18. neutron diffratrometry
19. nuclear reactor
20. fissionable materials
21. fertile materials
22. moderating materials
23. neutron diffractrometry
24. water cooled reactor
25. breeder reactor
26. fast breeder reactor
27. fissionable materials
28. fertile materials
29. moderating materials
30. control materials
31. to achieve neutron balance
32. breeding ratio
33. 103 particles/cm2/s
34. photo voltaic cell