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

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Related Mcqs:

  1. Atomic number of an element in the periodic table represents the numbers of_________________?
    A. protons in the nucleus B. electrons in me nucleus C. neutrons in the nucleus D. electrons in the atom E. neutrons in the atom...
  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. Breeder reactor has a conversion ratio of_____________________?
    A. unity B. more than unity C. less than unity D. zero E. infinity...
  4. The nuclear energy is measured as__________________?
    A. MeV B. curie C. farads D. MW E. kWhr...
  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. 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...
  7. Natural uranium is made up of__________________?
    A. 99.282% U238, 0.712% U235, 0.006% U234 B. 99.282% U235, 0.712% U238, 0.06%’ U234 C. 99.282% U234, 0.712% U238, 0.006% U235 D. 99.282% U235, 0.712% U234, 0.006% U238 E. none of the above...
  8. Breeder reactors employ liquid metal coolant because it_______________?
    A. acts as good moderator B. produces maximum steam C. transfers heat from core at a fast rate D. breeds neutrons E. increases rate of reaction in core...
  9. The presence of reflector in nuclear power plants results in___________________?
    A. increased production of neutrons B. complete absorption of neutrons C. controlled production of neutrons D. decreased leakage of neutrons E. decrease of speed of neutrons...
  10. Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_________________?
    A. centrifugal B. axial C. reciprocation D. electromagnetic E. diaphragm...
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