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

Related Mcqs:

1. The energy required to be applied to a radioactive nucleus for the emission of a neutron is________________?

   A. 1 MeV
   B. 2.4 MeV
   C. 4.3 MeV
   D. 7.8 MeV
   E. 20 MeV

2. In a fission process, maximum %age of energy is released as___________________?

   A. kinetic energy of neutrons
   B. kinetic energy of fission products
   C. instantaneous release of gamma rays
   D. gradual readioactive decay of fission products
   E. none of the above

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

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

4. The efficiency of a nuclear power plant in comparsion to a conventional thermal power plant is________________?

   A. same
   B. more
   C. less
   D. may be less or mote depending on size
   E. unpredictable

5. The fast breeder reactor uses the following moderator__________________?

   A. demineralised water
   B. carbon dioxide
   C. heavy water
   D. graphite
   E. no moderator is used

6. U238 will undergo fission by_________________?

   A. high energy (fast) neutrons alone
   B. low energy (slow) neutrons alone
   C. either fast or slow neutrons
   D. medium energy neutrons
   E. none of the above

7. Electron-volt is the unit of________________?

   A. atomic power
   B. energy
   C. voltage
   D. radio activity
   E. there is no such unit.

8. A pressurised water reactor employs pressuriser for the following application________________?

   A. to maintain constant pressure in primary circuit under varying load
   B. to Supply high pressure steam
   C. to increase pressure of water in primary circut
   D. to provide subcooled water at high pressure
   E. all of the above

9. A fission chain reaction in uranium can be developed by________________?

   A. slowing down fast neutrons so that Uz fission continues by slow motion neutrons
   B. accelerating fast neutrons
   C. absorbing all neutrons
   D. using moderator
   E. enriching U235

10. Each fission of U235 produces following number of fast neutrons per fission________________?

    A. 1 neutron
    B. 1 — neutrons
    C. 1 – 2 neutrons
    D. 2 — neutrons
    E. infinite