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1. A nuclear fission produces energy of following order in MeV A. 20 B. 200 C. 2000 D. 20,000 2. A nuclear fission is initiated
1. A nuclear fission produces energy of following order in MeV A. 20 B. 200 C. 2000 D. 20,000 2. A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atom is A. Same B. More C. Less D. None of the above 3. A nuclear unit becoming critical means A. It is generating power to rated capacity B. It is capable of generating much more than rated capacity C. There is danger of nuclear spread D. Chain reaction that causes automatic splitting of the fuel nuclei has been established 4. A reactor capable of converting a ferrite material into fissile isotopes is called A. Regenerative reactor B. Fast breeder reactor C. Breeder reactor D. Boiling water reactor 5. Boiling water reactor employs A. Boiler B. Direct cycle of coolant system C. Double circuit system of coolant cycle D. Multi pass system6. For economical operation of a nuclear plant A. Used fuel should be reprocessed B. Moderator should be used C. Coolant should be employed D. Control rods should be used 7. Hydrogen is preferred as better coolant in comparison to CO2 because former A. Is lighter B. Is inert C. Has high specific heat D. Is a good conductor 8. In boiling water reactor, moderator is A. Coolant itself B. Ferrite rod C. Graphite rod D. Liquid sodium metal 9. In nuclear fission each neutron that causes fission releases A. No new neutron B. At least one new neutron C. One new neutron D. More than one new neutron 10. Moderator in nuclear plants is used to A. Moderate the radioactive pollution B. Extract heat from nuclear reaction C. Control the reaction D. Cause collision with the fast moving neutrons to reduce their speed
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