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MCQs

Total Questions : 943 | Page 90 of 95 pages
Question 891. Enriched uranium means that, it contains
  1.    No impurities
  2.    Only fertile material
  3.    More than 0.71% of U-235
  4.    Only fissile material
 Discuss Question
Answer: Option C. -> More than 0.71% of U-235
Question 892. Which of the following is not a naturally occurring nuclear fuel?
  1.    Plutonium⁻²39
  2.    None of these
  3.    Uranium⁻²38
  4.    Thorium⁻²33
 Discuss Question
Answer: Option A. -> Plutonium⁻²39
Question 893. Nuclear fuel complex, Hyderabad is engaged in the job of
  1.    Treatment of spent fuel
  2.    Manufacture of nuclear fuel elements/assemblies
  3.    Processing of uranium ore
  4.    None of these
 Discuss Question
Answer: Option B. -> Manufacture of nuclear fuel elements/assemblies
Question 894. Molten sodium is used as a coolant in a fast breeder reactor, because of its
  1.    Faster heat removal capability from the core
  2.    Excellent moderating properties
  3.    Capability to increase the reaction rate in the core
  4.    Neutron breeding capability
 Discuss Question
Answer: Option A. -> Faster heat removal capability from the core
Question 895. Uranium ore is currently mined & concentrated at
  1.    Alwaye
  2.    Khetri
  3.    Jadugoda
  4.    Ghatsila
 Discuss Question
Answer: Option C. -> Jadugoda
Question 896. Which of the following is a moderating material used in nuclear reactor?
  1.    Graphite
  2.    Zircalloy (an alloy of zirconium and aluminium)
  3.    Cadmium
  4.    Stainless steel
 Discuss Question
Answer: Option A. -> Graphite
Question 897. In a pressurised water reactor (PWR), the
  1.    Coolant water is pressurised to prevent bulk boiling of water in the core
  2.    Fuel is natural uranium and heavy water acts both as moderator & coolant
  3.    Coolant water boils in the core of the reactor
  4.    Use of moderator is not required
 Discuss Question
Answer: Option A. -> Coolant water is pressurised to prevent bulk boiling of water in the core
Question 898. Hydrogen has __________ isotopes.
  1.    Three
  2.    Two
  3.    No
  4.    One
 Discuss Question
Answer: Option A. -> Three
Question 899. Hydrogen differs from deuterium in __________ properties.
  1.    Radioactive
  2.    All of these
  3.    Chemical
  4.    Physical
 Discuss Question
Answer: Option D. -> Physical
Question 900. Which of the following reactors is operated at high neutron flux and low power level?
  1.    Liquid metal (e.g., molten sodium) cooled reactor
  2.    Heterogeneous reactor
  3.    Research reactor
  4.    Breeder reactor
 Discuss Question
Answer: Option C. -> Research reactor

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