Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________?

Related Mcqs:

1. Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around _____________ m/sec?

   A. 1 B. 2200 C. 3 × 1011 D. 9 × 1021...

2. The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235, followed by nuclear fission is __________________?

   A. 1 B. 2 C. 3 D. 4...

3. Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?

   A. Equal to B. Less than C. More than D. Either more or less...

4. Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?

   A. < 0.025 B. > 1 C. 1-25 D. > 200...

5. The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about ______________ metres/second?

   A. 1100 B. 2200 C. 3300 D. 4400...

6. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of ____________ percent of U-235 (i.e. fissile material)?

   A. 15 B. 45 C. 65 D. 85...

7. Thermal nuclear reactors using enriched uranium as fuel contains a maximum of ____________ percent fissile material i.e. U-235?

   A. 1 B. 2 C. 3 D. 7...

8. Atoms of U-238 and U-235 differ in structure by three_____________________?

   A. Electrons and three protons B. Protons C. Neutrons D. Electrons...

9. Quantity of fissionable material (i.e. U-235) in natural uranium is _____________ percent?

   A. 0.71 B. 6.31 C. 99.29 D. 12.73...

10. U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about _____________ percent?

    A. 85 B. 50 C. 3 D. 97...