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Nuclear power plants
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q21 ⇒ The energy required to be applied to a radioactive nucleus for the emission of a neutron is 7.8 MeV [other wrong options] [Discuss in forum] 1 MeV 2.4 MeV 4.3 MeV 20 MeV. |
Q22 ⇒ Which of the following are ferrite materials U [other wrong options] [Discuss in forum] U233andPu239 U238andPu239 U238andTh239 none of the above |
Q23 ⇒ Ferrite material is the material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material [other wrong options] [Discuss in forum] the most fissionable material the basic fuel for nuclear paints basic raw material for nuclear plants none of the above. |
Q24 ⇒ Enriched uranium is one in which %age of U235 has been artificially in-creased [other wrong options] [Discuss in forum] %age of U has been artificially in¬creased %age of U234 has been artificially in-creased extra energy is pumped from outside all impurities have been removed. |
Q25 ⇒ Which of the following particles is the lightest electron [other wrong options] [Discuss in forum] nucleus proton meson neutron. |
Q26 ⇒ Which of the following is the heaviest atom [other wrong options] [Discuss in forum] neutron proton electron nucleus. |
Q27 ⇒ In fast breeder reactors moderator is dispensed with. [other wrong options] [Discuss in forum] any type of moderator can be used graphite is used as the moderator heavy water is used as the moderator moderator may or may not be used |
Q28 ⇒ In nuclear fission each neutron that causes fission releases more than one new neutrons [other wrong options] [Discuss in forum] no new neutron at least one new neutron one new neutron many-fold neutrons. |
Q29 ⇒ The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is lower [other wrong options] [Discuss in forum] same higher unity higher/lower depending on the size of reactor. |
Q30 ⇒ Gas cooled reactor uses following materials as moderator, and coolant graphite, C02 [other wrong options] [Discuss in forum] graphite, air heavy water, C02 lead, H2 concrete, N2. |
Q31 ⇒ A nuclear fission produces energy of following order in MeV 200 [other wrong options] [Discuss in forum] 20 2000 20,000 2 x 105. |
Q32 ⇒ The process by which a heavy nucleus is splitted into two light nuclei is known as fission [other wrong options] [Discuss in forum] splitting fusion disintegration chain reaction. |
Q33 ⇒ A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is more [other wrong options] [Discuss in forum] same less there is no such criterion none of the above. |
Q34 ⇒ The fast breeder reactor uses the following moderator no moderator is used. [other wrong options] [Discuss in forum] demineralised water carbon dioxide heavy water graphite |
Q35 ⇒ The first unclear power plant in India is located at Tarapur [other wrong options] [Discuss in forum] Kota Kalapakkam Baraeilly Kerala. |
Q36 ⇒ The nuclear power plant at Tarapur has the following reactor boiling water [other wrong options] [Discuss in forum] fast breeder pressurised water sodium graphite none of the above. |
Q37 ⇒ Boiling water reactor uses the following as moderator, coolant and working fluid ordinary fluid [other wrong options] [Discuss in forum] heavy water molten lead hydrogen gas none of the above. |
Q38 ⇒ Ideally the neutron flux in reactor should be uniform throughout [other wrong options] [Discuss in forum] maximum in centre and zero at side maximum at side and zero in centre zero throughout none of the above. |
Q39 ⇒ Enriched uranium may contain fissionable contents of the order of 1-99% [other wrong options] [Discuss in forum] 1-25% 1-50% 1-75% 1-90%. |
Q40 ⇒ U235 will undergo fission by either fast or slow neutrons [other wrong options] [Discuss in forum] high energy (fast) neutrons alone low energy (slow) neutrons alone medium energy neutrons none of the above. |
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