Nuclear Power Engineering MCQs with answers Page - 8

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Q. A boiling water reactor is the one, in which the

  • (A) Coolant water is allowed to boil in the core of the reactor
  • (B) Coolant water, after being heated in the reactor core, generates steam in a boiler
  • (C) Pressurised water is pumped into the core
  • (D) Fuel and the coolant are thoroughly mixed to form a homogeneous solution

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Q. A homogeneous reactor is the one, in which the

  • (A) Fissile atoms are evenly distributed throughout the mass of nuclear reactor
  • (B) Same substance (e.g. heavy water) is used as moderator & coolant
  • (C) The fuel and the moderator is mixed to form a homogeneous material
  • (D) All of the above

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Q. The phenomenon of radioactivity was discovered by

  • (A) Madam Curie
  • (B) Bacquerrel
  • (C) Roentgen
  • (D) J.J. Thomson

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Q. Fast breeder test reactor at Kalpakkam is designed for using

  • (A) Thorium as a fertile material
  • (B) U-238 as a fertile material
  • (C) Helium as a coolant
  • (D) Uranium ore directly as a fuel

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Q. Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to

  • (A) 10-24 cm2
  • (B) 10-12 cm
  • (C) 1 Angstrom
  • (D) 10-24 cm

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Q. Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material.

  • (A) Thorium-233
  • (B) Uranium-235
  • (C) Uranium-233
  • (D) Plutonium-239

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Q. In the nuclear reaction, 93N239 → 93PU239 + ?; the missing particle is a/an

  • (A) Electron
  • (B) Proton
  • (C) Neutron
  • (D) Position

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Q. Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.

  • (A) U-238
  • (B) U-233
  • (C) U-235
  • (D) Pu-239

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Q. Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.

  • (A) Fuel elements
  • (B) Operating personnels
  • (C) Walls of the reactor
  • (D) None of these

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Q. In nuclear reactions, __________ number is conserved.

  • (A) Mass
  • (B) Atomic
  • (C) Both A & B
  • (D) Neither A nor B

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