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

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Related Mcqs:

  1. U235 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...
  2. In triggering fission, the following types of neutrons are desirable_________________?
    A. fast moving B. slow moving C. critical neutrons D. neutrons at rest E. none of the above...
  3. In order to have constant clain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be________________?
    A. greater than 1.0 B. less than 1.0 C. equal to zero D. equal to 1.0 E. equal to infinity...
  4. In triggering fission, which type of neutrons are more effective_________________?
    A. fast B. slow C. in bulk D. static E. activated...
  5. In nuclear fission each neutron that causes fission releases_______________?
    A. no new neutron B. at least one new neutron C. one new neutron D. more than one new neutrons E. many-fold neutrons...
  6. A nuclear fission produces energy of following order in MeV___________________?
    A. 20 B. 200 C. 2000 D. 20,000 E. 2 x 105...
  7. When a reactor becomes critical, then the production of neutrons is_________________?
    A. infinite B. zero C. exactly balanced by the loss of neutrons through leakage D. initiated E. stopped...
  8. The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to sustain a chain reaction, would be________________?
    A. more B. less C. same D. zero E. negative, i.e. fuel would be generated...
  9. A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is_________________?
    A. same B. more C. less D. there is no such criterion E. none of the above...
  10. 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...
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