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MCQs

Total Questions : 943 | Page 4 of 95 pages
Question 31. An element having large number of __________ is most easily subjected to nuclear fission.
  1.    Protons
  2.    Electrons
  3.    Neutrons
  4.    Nucleons
 Discuss Question
Answer: Option D. -> Nucleons
Question 32. Sodium melts (at atmospheric pressure) at a temperature of __________ °C.
  1.    58
  2.    98
  3.    348
  4.    588
 Discuss Question
Answer: Option B. -> 98
Question 33. The radioisotope used to study the thyroid gland is
  1.    Iodine
  2.    Cobalt
  3.    Iron
  4.    Carbon
 Discuss Question
Answer: Option A. -> Iodine
Question 34. The emission of an a-particle causes the resultant nucleus to have
  1.    More atomic weight and less atomic number
  2.    Less atomic weight and less atomic number
  3.    Less atomic weight and more atomic number
  4.    None of these
 Discuss Question
Answer: Option A. -> More atomic weight and less atomic number
Question 35. Which of the following accounts for the maximum energy release in the nuclear fission process?
  1.    Kinetic energy of fission products
  2.    Radioactive decay of fission products
  3.    Instantaneous release of γ-rays
  4.    Kinetic energy of neutrons
 Discuss Question
Answer: Option A. -> Kinetic energy of fission products
Question 36. Energy equivlant to one atomic mass unit (amu) is __________ MeV.
  1.    9.31
  2.    93.1
  3.    931
  4.    9310
 Discuss Question
Answer: Option C. -> 931
Question 37. Percentage of the heavy water in ordi water is around
  1.    0.015
  2.    7.54
  3.    0.71
  4.    32.97
 Discuss Question
Answer: Option A. -> 0.015
Question 38. Heavy water plant is not located at
  1.    Talcher
  2.    Tuticorin
  3.    Ramagundam
  4.    Kota
 Discuss Question
Answer: Option C. -> Ramagundam
Question 39. Out of the following places, heavy water plant is not located at
  1.    Baroda
  2.    Ramagundam
  3.    Talcher
  4.    Tuticorin
 Discuss Question
Answer: Option B. -> Ramagundam
Question 40. Heavy water plant is not located at
  1.    Kota and Baroda
  2.    Talcher (Orissa)
  3.    Tuticorin(Tamilnadu)
  4.    Korba
 Discuss Question
Answer: Option D. -> Korba

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