Atomic number of an element in the periodic table represents the numbers of_________________? - PakMcqs

Related Mcqs:

1. The mass number of a substance represents the sum of total number of___________________?

   A. protons and neutrons in an atom B. protons and electrons in an atom C. neutrons and electrons in an atom D. protons and neutrons in a nucleus E. protons and electrons in a nucleus...

2. The total energy released in fission of U is__________________?

   A. 5 MeV B. 10 MeV C. 199 MeV D. 168 MeV E. 11 MeV...

3. The main interest of shielding in nuclear reactor is protection against_______________?

   A. X-rays B. infra-red rays C. a, P, and y rays D. neutrons and gamma rays E. electrons...

4. The process by which a heavy nucleus is splitted into two light nuclei is known as_________________?

   A. splitting B. fission C. fusion D. disintegration E. chain reaction...

5. Ideally the neutron flux in reactor should be__________________ ?

   A. maximum in center and zero at side B. maximum at side and zero in center C. uniform throughout D. zero throughout E. none of the above...

6. Uranium-233 is produced__________________?

   A. as basic raw material B. by neutron irradiation of Uz C. by neutron irradiation of thorium D. artificially E. in high capacity furnaces...

7. The function of control rods in nuclear plants is to__________________?

   A. control temperature B. control readioactive pollution C. control absorption of neutron D. control fuel consumption E. none of the above...

8. Solid- fuel for nuclear reactions may be fabricated into various small shapes such as___________________?

   A. plates B. pallets C. pins D. any one of the above E. none of the above...

9. A fast breeder reactor uses_______________?

   A. 90% U-235 B. U-238 C. U-235 D. Pu-239 E. U-239...

10. A fast breeder reactor__________________?

    A. uses graphite rods as moderator B. has powerful moderator C. has no moderator D. uses ferrite material as moderator E. uses pressurised water as moderator...