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MCQs

Total Questions : 807 | Page 8 of 81 pages
Question 71. Which of the following nuclear reactor does not need a heat exchanger for generation of steam?
  1.    Gas cooled
  2.    Liquid metal cooled
  3.    Pressurised water
  4.    Boiling water
 Discuss Question
Answer: Option D. -> Boiling water
Question 72. Which of the following is more appropriate for a moderator? One which
  1.    Does not absorb neutrons
  2.    Absorbs neutrons
  3.    Accelerates neutrons
  4.    Eats up neutrons
 Discuss Question
Answer: Option A. -> Does not absorb neutrons
Question 73. Which of the following are ferrite materials?
  1.    U₂₃₃ and Pu₂₃₉
  2.    U
  3.    U₂₃₈ and Pu₂₃₉
  4.    U₂₃₈ and Th₂₃₉
 Discuss Question
Answer: Option B. -> U
Question 74. A moderator, apart from its high neutron slowing power, and low non-productive neutron, should be
  1.    Stable under nuclear radiation
  2.    Corrosion resistant
  3.    Good thermal conductor
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Question 75. For economical operation of a nuclear plant
  1.    Used fuel should be reprocessed
  2.    Moderator should be used
  3.    Coolant should be employed
  4.    Control rods should be used
 Discuss Question
Answer: Option A. -> Used fuel should be reprocessed
Question 76. The mass number of a substance represents the sum of total number of
  1.    Protons and neutrons in an atom
  2.    Protons and electrons in an atom
  3.    Neutrons and electrons in an atom
  4.    Protons and neutrons in a nucleus
 Discuss Question
Answer: Option D. -> Protons and neutrons in a nucleus
Question 77. A boiling water reactor uses following as fuel
  1.    Enriched uranium
  2.    Plutonium
  3.    Thorium
  4.    U
 Discuss Question
Answer: Option A. -> Enriched uranium
Question 78. Superheated steam is generated in following reactor
  1.    Boiling water
  2.    Gas cooled
  3.    Pressurised water
  4.    All of the above
 Discuss Question
Answer: Option B. -> Gas cooled
Question 79. A fast breeder reactor uses following as fuel
  1.    Enriched uranium
  2.    Plutonium
  3.    Thorium
  4.    U₂₃₅
 Discuss Question
Answer: Option D. -> U₂₃₅
Question 80. The risk of radioactive hazard is greatest in the turbine with following reactor
  1.    Pressurised water
  2.    Boiling water
  3.    Gas cooled
  4.    Liquid metal cooled
 Discuss Question
Answer: Option B. -> Boiling water

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