A. light or heavy water
B. molten lead
C. carbon dioxide
D. freon
E. carbon tetrachloride

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Related Mcqs:

  1. 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...
  2. Hydrogen is preferred as better coolant in comparison to C02 because former_____________________?
    A. is lighter B. is inert C. has high specific heat D. is a good conductor E. all of the above...
  3. Breeder reactors employ liquid metal coolant because it_______________?
    A. acts as good moderator B. produces maximum steam C. transfers heat from core at a fast rate D. breeds neutrons E. increases rate of reaction in core...
  4. The coolant used in boiling water reactor is________________?
    A. Co2 B. pressurised water C. mixture of water and steam D. liquid metal E. mercury...
  5. The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is__________________?
    A. higher cost of nuclear fuel B. high initial cost C. high heat rejection in condenser D. lower temperature and pressure condi-tions E. nuclear hazard risk...
  6. The most practical fuel for a thermo-nuclear reactor, both from econocical and nuclear consideration is____________________?
    A. plutonium B. uranium C. deuterium D. thorium E. lithium...
  7. Which of the following nuclear reactor does not need a heat exchanger for generation of steam____________________?
    A. gas cooled B. liquid metal cooled C. pressurised water D. boiling water E. none of the above...
  8. A nuclear fission produces energy of following order in MeV___________________?
    A. 20 B. 200 C. 2000 D. 20,000 E. 2 x 105...
  9. The nuclear power plant at Tarapur has the following reactor________________?
    A. fast breeder B. pressurised water C. boiling water D. sodium graphite E. none of the above...
  10. Reflector in nuclear plants is used to________________?
    A. return the neutrons back into the core B. shield the radioactivity completely C. check polllution D. conserve energy E. is not used...
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