A. demineralised water
B. carbon dioxide
C. heavy water
D. graphite
E. no moderator is used

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Related Mcqs:

  1. The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?
    A. same B. lower C. higher D. unity E. higher/lower depending on the size of reactor...
  2. A fast breeder reactor uses following as fuel_________________?
    A. enriched uranium B. plutonium C. thorium D. U235 E. natrual uranium...
  3. Fast breeder reactor uses___________________?
    A. boiler B. direct cycle of coolant system C. double circuit system of coolant cycle D. multi pass system E. single circuit system...
  4. A fast breeder reactor uses_______________?
    A. 90% U-235 B. U-238 C. U-235 D. Pu-239 E. U-239...
  5. The energy produced by a thermal reactor of same size as a breeder reactor is__________________?
    A. almost same B. slightly more C. slightly less D. much less E. much more....
  6. In fast breeder reactors___________________?
    A. any type of moderator can be used B. graphite is used as the moderator C. heavy water is used as the moderator D. moderator may or may not be used E. moderator is dispensed with...
  7. Pick up the wrong statement Fast breeder reactors__________________?
    A. operate at extremely high power densities. B. are liquid-metal cooled C. produce more fuel than they consume D. are unmoderated E. use water as coolant...
  8. A fast breeder reactor__________________?
    A. uses graphite rods as moderator B. has powerful moderator C. has no moderator D. uses ferrite material as moderator E. uses pressurised water as moderator...
  9. Breeder reactor has a conversion ratio of_____________________?
    A. unity B. more than unity C. less than unity D. zero E. infinity...
  10. Boiling water reactor uses the following as moderator, coolant and working fluid________________?
    A. ordinary fluid B. heavy water C. molten lead D. hydrogen gas E. none of the above...
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