Nuclear Power Engineering MCQs with answers Page - 6

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Q. Which of the following may be used to measure the rate of nuclear disintegration?

  • (A) Geiger-Muller Counter
  • (B) Cyclotron
  • (C) Cold chamber
  • (D) Mass spectrograph

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Q. Heavy water is preferred over ordinary water as a coolant, because it.

  • (A) Acts both as an efficient coolant as well as a moderator
  • (B) Can be heated to a higher temperature without pressurizing
  • (C) Is less prone to radiation damage
  • (D) All of the above

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Q. Pressure in a Pressurised Water Reactor (PWR) is used for

  • (A) Maintaining constant pressure in the primary cooling circuit under varying loads
  • (B) Superheating the steam
  • (C) Pressurising the water in the primary coolant circuit
  • (D) None of these

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Q. The ratio of volume of an atom to that of its nucleus is

  • (A) 1012
  • (B) 10-12
  • (C) 108
  • (D) 10-8

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Q. The function of moderators in nuclear reactor is to

  • (A) Absorb the secondary neutrons
  • (B) Slow down the secondary neutrons
  • (C) Control the chain reaction
  • (D) None of these

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Q. Which of the following ores contains maximum percentage of uranium?

  • (A) Carnotite
  • (B) Thorium
  • (C) Rescolite
  • (D) Pitchblende

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Q. An element having large number of __________ is most easily subjected to nuclear fission.

  • (A) Protons
  • (B) Electrons
  • (C) Neutrons
  • (D) Nucleons

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Q. Sodium melts (at atmospheric pressure) at a temperature of __________ °C.

  • (A) 58
  • (B) 98
  • (C) 348
  • (D) 588

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Q. Which of the following accounts for the maximum energy release in the nuclear fission process?

  • (A) Kinetic energy of fission products
  • (B) Radioactive decay of fission products
  • (C) Instantaneous release of γ-rays
  • (D) Kinetic energy of neutrons

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Q. The emission of an a-particle causes the resultant nucleus to have

  • (A) Less atomic weight and less atomic number
  • (B) More atomic weight and less atomic number
  • (C) Less atomic weight and more atomic number
  • (D) None of these

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