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MCQs

Total Questions : 807 | Page 9 of 81 pages
Question 81. The nuclear energy is measured as
  1.    MeV
  2.    Curie
  3.    Farads
  4.    MW
 Discuss Question
Answer: Option A. -> MeV
Question 82. Which of the following can be used as a coolant in nuclear plant?
  1.    Light or heavy water
  2.    Molten lead
  3.    Carbon dioxide
  4.    Freon
 Discuss Question
Answer: Option A. -> Light or heavy water
Question 83. In a fission process, maximum percentage of energy is released as
  1.    Kinetic energy of neutrons
  2.    Kinetic energy of fission products
  3.    Instantaneous release of gamma rays
  4.    Gradual radioactive decay of fission products
 Discuss Question
Answer: Option B. -> Kinetic energy of fission products
Question 84. Natural uranium is made up of
  1.    99.282% U₂₃₈, 0.712% U₂₃₅, 0.006% U₂₃₄
  2.    99.282% U₂₃₅, 0.712% U₂₃₈, 0.06%' U₂₃₄
  3.    99.282% U₂₃₄, 0.712% U₂₃₈, 0.006% U₂₃₅
  4.    99.282% U₂₃₅, 0.712% U₂₃₄, 0.006% U₂₃₈
 Discuss Question
Answer: Option A. -> 99.282% U₂₃₈, 0.712% U₂₃₅, 0.006% U₂₃₄
Question 85. The function of control rods in nuclear plants is to
  1.    Control temperature
  2.    Control radioactive pollution
  3.    Control absorption of neutron
  4.    Control fuel consumption
 Discuss Question
Answer: Option C. -> Control absorption of neutron
Question 86. Solid fuel for nuclear reactions may be fabricated into various small shapes such as
  1.    Plates
  2.    Pallets
  3.    Pins
  4.    Any one of the above
 Discuss Question
Answer: Option D. -> Any one of the above
Question 87. The fast breeder reactor uses the following moderator
  1.    Demineralised water
  2.    Carbon dioxide
  3.    Heavy water
  4.    No moderator is used
 Discuss Question
Answer: Option D. -> No moderator is used
Question 88. Electron volt is the unit of
  1.    Atomic power
  2.    Energy
  3.    Voltage
  4.    Radio activity
 Discuss Question
Answer: Option B. -> Energy
Question 89. Which is not identical for an atom and an isotope?
  1.    Mass number
  2.    Atomic number
  3.    Chemical properties
  4.    Position in periodic table
 Discuss Question
Answer: Option A. -> Mass number
Question 90. Enriched uranium is one in which
  1.    Percentage of U₂₃₅ has been artificially increased
  2.    Percentage of U has been artificially increased
  3.    Percentage of U₂₃₄ has been artificially increased
  4.    Extra energy is pumped from outside
 Discuss Question
Answer: Option A. -> Percentage of U₂₃₅ has been artificially increased

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