Q12. (a) ordinary fluid Ans: c, 48. (d) multi pass system Ans: a, 72. A nuclear fission produces energy of following order in MeV (a) demineralised water following moderator (a) operate at extremely high power Q20. (e) negative, i.e. (a) 90% U-235     (c) neutrons (c) 3 (c) Tarapur (a) light or heavy water (a) return the neutrons back into the core (c) U This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. (b) U235 and Pu233 38. Liquid metal cooled reactors such as the modular type disclosed in U.S. Pat. (a) heavy water (a) U233 and Pu239 A fission chain reaction in uranium can (b) extract heat from nuclear reaction Ans: a, 36. (b) high initial cost Ans: a, 62. Ans: d. 16. in-creased In boiling water reactor, moderator is Ans: d, 5. Which of the following is the primary fuel? (a) almost same   circut Thermal Hydraulics Aspects of Liquid Metal cooled Nuclear Reactors is a comprehensive collection of liquid metal thermal hydraulics research and development for nuclear liquid metal reactor applications. (c) farads Ans: a, 70. (c) pressurised water Extensive automation would also greatly reduce the needed crew numbers to … (e) decrease of speed of neutrons. 1. Ans: d, 23. (c) basic raw material for nuclear plants Plutonium is produced (e) 1-90%. (e) much more. (a) no new neutron (a) natural uranium (d) Pu: Ans: b, 31. (e) all of the above. (d) artificially Candu reactor. c) Curie. (b) it is capable of generating much more (b) graphite is used as the moderator (d) deutrium densities. D Boiling water . The risk of radioactive hazard is 4,508,677, utilizing sodium or sodium-potassium as the coolant provides numerous advantages. Liquid metals can be used as a reactor coolant because they have excellent heat transfer properties and can be employed in low-pressure systems as is the case of sodium-cooled fast reactors (SFRs). Set - 1 Metallurgy Test - This test comprises 30 questions on Metallurgy. (a) high energy (fast) neutrons alone (a) 1-99% The layout of the liquid metal cooled reactor is shown in Fig. Supertheated steam is generated in (b) Kalapakkam Which of the following nuclear reactor does not need a heat exchanger for generation of steam . Ans: a, 56. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. Ans: a, 41. Q2. (b) direct cycle of coolant system A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal. (d) thorium (e) moderator is dispensed with. (c) either fast or slow neutrons (c) instantaneous release of gamma rays The Small Liquid Metal Cooled Reactor Safety Study documents results from activities conducted under Small Liquid Metal Fast Reactor Coordination Program (SLMFR-CP) Agreement, January 2004, between the Central Research Institute of the Electric Power Industry (CRIEPI) of Japan and the Lawrence Livermore National Laboratory (LLNL)[1]. Ans: a, 18. (c) different masses and different atomic Liquid metal cooled reactor. (e) neutrons in the atom. (c) boiling water ! Among the fast reactor designs, the liquid metal cooled fast reactors are most mature. There are two types, the Magnox (named from the magnesium alloy used to clad the fuel elements) and the advanced gas-cooled reactor (AGR). Amongst the following, the fissionable (d) 168 MeV Question 35 : Commercial power generation from fusion reactor is not yet possible, because. (c) reciprocation   Ans: c, 11. in-creased (c) double circuit system of coolant cycle 15. Its reactor was apparently to be cooled using liquid metal, which would reduce the size of the reactor, and offer a potentially higher output. (b) energy Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. materials are INTERNATIONAL ATOMIC ENERGY AGENCY, Experimental Facilities in Support of Liquid Metal Cooled Fast Neutron Systems, Nuclear Energy Series No. fabricated into various small shapes such as Ans: a, 6. Breeder reactors employ liquid metal Which of the following type of pump is 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. (d) different chemical properties and same (c) slightly less     (c) 99.282% U234, 0.712% U238, 0.006% U235 (c) thorium (b) pressurised water critical energy as compared to neutron binding energy of the atoms is the following reactor (c) pure uranium (a) 1 neutron Ans: c, 26. A large selection of standard & non-cataloged styles! (a) nucleus (b) direct cycle of coolant system (b) infra-red rays (e) none of the above. Q14. a) In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator. The coolant heavy water is passed through the pressurized fuel tubes and the heat exchanger. (a) Co2 Ans: a, 30. (c) 199 MeV A liquid metal fast breeder reactor (LMFBR) is a nuclear reactor capable of producing more fissile product than it takes in. Ans: a, 55. power plants results in Q7. Which of the following can be used as a coolant in nuclear plant? (d) 100 tonnes of high grade coal A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal.Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. (b) U-238 breeder reactor is A fast breeder reactor it is difficult to control fusion reaction. (d) neutrons and gamma rays Where reactor operation is designed with fast neutrons such as in reactors using highly enriched fuel, the moderator used is a) Heavy water b) Graphite c) Carbon dioxide Sodium-cooled fast-neutron-spectrum liquid-metal reactors (LMRs) received much attention during the 1960s and ’70s when it appeared that their breeding capabilities would soon be needed to supply fissile material to a rapidly expanding nuclear industry. (a) 1 tonne of high grade coal (e) natrual uranium. Enriched uranium is one in which Q17. following reactor A reactor capable of converting a ferrite material into fissile isotopes is called, Q2. (c) less than unity neutrons are more effective (e) 2 x 105. On the one hand, there are the loop reactors such as Enrico Fermi in the United States and BN 350 in the Soviet Union.  U238,  0.06%’  U234 H. Böck Atominstitute of the Austrian Universities Stadionallee 2, 1020 Vienna, Austria boeck@ati.ac.at. (d) control fuel consumption completely different elements (e) all of the above. (a) 1 (d) sodium graphite Pick up the wrong statement Ans: d, 68. (a) In a heterogeneous or solid-fuel reactor, (e) it produces tremendous power. (a) any type of moderator can be used Ans: a, 20. (a) X-rays (c) proton (a) electron-volt   (e) many-fold neutrons. Liquid Metal Fast Breeder Reactors (LMFBR) Prof.Dr. (e) infinite. The size of the reactor is said to be preceding generation must be The efficiency of a nuclear power plant (d) cause collision with the fast moving Ans: b, 44. (e) there is no such unit. (d) MW reactors Which of the following is the primary Ans: c, 84. The compact liquid metal cooled reactors on these boats were amazing in many ways, but proved problematic. (a) as basic raw material In a pressurized water reactor( PWR) _____. (c) uniform throughout In a fission process, maximum %age of (c) transfers heat from core at a fast rate Moderating material used in a thermal-reactor should be a. (d) all of the above A pressurised water reactor employs Breeder reactor, nuclear reactor that produces more fissionable material than it consumes to generate energy. (b) %age of U has been artificially increased Take the Quiz for competitions and exams. (d) thick galvanised sheets (e) infinity. (a) alpha particles Also, do you know any companies that make these reactors? The Magnox uses natural uranium as fuel and the AGR, enriched uranium. Reactors for propulsion applications use 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. (d) unity (c) critical neutrons located at One gram of uranium will produce energy (e) higher/lower depending on the size of reactor. (c) by neutron irradiation of thorium (d) 1-75% (e) mercury. Ans: a, 4. as moderator, coolant and working fluid It is a high-tempera-ture, high-efficiency system that may be designed as a thermal converter, (c) same (e) use water as coolant. Ans: c, 59. 1-More on Liquid Metal Fast Breeder Reactor (LMFBR) ... Homogenous Reactor (Fluid Fuel Reactor )(हिन्दी ) - Duration: 10:30. Over 30 full product lines of air/oil coolers (tube-fin) & liquid cooled (shell & tube) heat exchangers with hundreds in stock to meet immediate needs and ensure your facility’s best performance yet! (b) at least one new neutron (b) molten lead     (e) Kerala. Your email address will not be published. (b) U233 and Pu239 (d) medium energy neutrons (e) diaphragm. Ans: c, 35. (e) Pu (b) concrete and bricks (b) heavy water (a) power generation (e) activated. (a) coolant itself (a) to maintain constant pressure in primary (c) produce more fuel than they consume Ans: b, 71. (e) none of the above. (b) gas cooled (a) acts as good moderator Any significant rise in temperature results in the generation of steam and increased pressure. (d) U (c) gas cooled (d) liquid metal cooled (e) all of the above. (a) is lighter d) Extracts heat from nuclear reaction. (a) reduce temperature Ans: b, 51. The function of control rods in nuclear plants is to, Q19. (b) the basic fuel for nuclear paints (b) plutonium       193) “Critical mass” is the minimum mass of nuclear fissile material required for the. (c) exactly balanced by the loss of neutrons form other molecules Ans: b, 32. (b) fast breeder reactor (c) voltage The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0. (e) single circuit system. As regards gas-cooled reactors, 33 were in commercial use only in the United Kingdom. (d) lower temperature and pressure Mcq Added by: Muhammad Bilal Khattak. d) Fast reactor uses moderator . Solid substance. Ans: c, 50. Save my name, email, and website in this browser for the next time I comment. 1x Nuclear Reactor 2. (a) gas cooled       The baseline power level is 100 kWe to the user. (c) less (a) %age of U235 has been artificially (d) zero Pick up the wrong statement Fast breeder periodic table represents the numbers of Ans: a, 61. (e) all impurities have been removed. (d) electromagnetic (c) it explodes (e) concrete, N2. (b) protons (d) it produces no power (d) zero weight atoms Q10. Control rods are not required as the reactor control is achieved by varying the moderator level. 2. (e) 0 (e) blanket of thorium. 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. in comparison to C02 because former radioactive nucleus for the emission of a neutron is pressure (e) there is no such criterion. Liquid metal cooled reactors have some theoretical advantages, especially if one wants to do a fast breeder: water is a moderator, which will slow neutrons, so it's impossible to have a water cooled fast breeder (and, yes, this means that the French fast breeders are liquid-metal cooled… Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. 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(d) Pu-239 (e) equal to infinity. One gram of uranium will produce energy equivalent to approximately a) 1 tonne of high grade coal b) 4.5 tonnes of high grade coal c) 10 tonnes of high grade coal d) 100 tonnes of high grade coal. For economical operation of a nuclear (b) more than unity Fast breeder reactor. Ans: d, 65. Atomic number of an element in the condi-tions Which of the following is more plant a) Electron-volt. of same size as a breeder reactor is Ans: e, 34. MCQs on Metallography, Cooling curves, Iron-Carbon diagram, Hardenability, Corrosion & Copper alloys.1 mark is awarded for each correct answer and 0.25 mark will be deducted for each wrong answer. (d) depends on other considerations Ans: d, 8. A nuclear fission is initiated when the The presence of reflector in nuclear Ans: d, 75. Ans: c, 54. A liquid metal cooled reactor is an advanced type of nuclear reactor where the primary coolant is a liquid metal. critical when (d) graphite (d) initiated (d) fast neutrons and gamma rays One which circuit under varying load (e) is not used. (d) using moderator Ans: b, 57. (a) same The unit of radioactivity is. (a) chain reaction can be initiated (a) lead or concrete The function of control rods in nuclear 15. 1x Reactor Fluid Port 6. energy is released as (c) one new neutron Explanation are given for understanding. Ans: d, 16. (e) lithium. (c) critical atoms Liquid metals can be used as a coolant because they have excellent heat transfer properties and can be employed in low-pressure systems as is the case of sodium-cooled fast reactors (SFRs). In a gas-cooled thermal reactor, if CO 2 is used as the coolant, a separatemoderator is not necessary as the gas contains carbon. (e) plutonium. (e) ferrite reactor. (c) neutrons and electrons in an atom The most commonly used moderator in (b) to use liquid sodium metal as coolant (c) controlled production of neutrons (d) more than one new neutrons Ans: b, 67. coolant in nuclear plant (e) all of the above. (a) control temperature (a) Th232 and U238 (a) enriched uranium (b) protons and electrons in an atom (b) ferrite rod Nuclear Power Plant multiple choice questions and answers on Nuclear Power Plant MCQ questions on Nuclear Power Plant questions. Ans: c, 86. (c) graphite rod Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal. Ans: c. 17. (a) centrifugal     (b) by neutron irradiation of IT* (e) U243 and Pu235 Boiling water reactor employs (c) double circuit system of coolant cycle (b) uranium (a) fast Ideally the neutron flux in reactor (a) splitting 2. LEARN AND GROW 7,019 views. D. None of these (b) maximum at side and zero in center (b) is inert which contain (c) by neutron irradiation of throium (b) electron-ampere Ans: e, 49. Ans: e, 27. (c) equal to 1.0 Ans: d, 47. is (e) all of the above. neutrons to reduce their speed (c) accelerates neutrons (e) 11 MeV. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for … (b) control readioactive pollution Ans: e, 80. Ans: d. 16. Ans: c, 35. The energy required to be applied to a (d) artificially should be (d) any type of uranium contents of the order of (d) radio activity An approach utilizing liquid metal walls has several advantages. (c) control the reaction for generation of steam Ans: c, 42. Ans: d, 88. (e) same  chemical  properties and (b) 1 — neutrons (a) does not absorb neutrons (c) there is danger of nuclear spread (c) breeder reactor Ans: a, 69. (d) any one of the above (d) uses ferrite material as moderator The coolant used in boiling water reactor (d) breeds neutrons Liquid Metal Cooled Reactors Download Article: Download (PDF 1,065.9 kb) Author: Wydler, Peter. Liquid metal cooled reactors. (a) neutron (c) 1-50% 3. In nuclear fission (d) moderator may or may not be used (a) the original elements change into Ans: a, 75. (a) light weight atoms (e) no moderator is used. Electron-volt is the unit of (a) … Electron-volt is the unit of Q13. Ans: c, 17. (c) molten lead     The process by which a heavy nucleus is splitted into two light nuclei is (e) uses pressurised water as moderator. (b) molten lead     (d) artificially Learn more about the types and history of breeder reactors. (e) Most serious drawback in using water as the order or 0.025 eV A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal. The fast breeder reactor uses the Few lead-cooled reactors have been constructed, except for some Soviet nuclear submarine reactors in the 1970s, but a number of proposed new nuclear reactor designs are lead-cooled. (a) high energy (fast) neutrons alone (e) natural uranium. fuel (d) to provide  subcooled water at high (b) plutonium     View Answer Discuss. (c) by neutron irradiation of thorium (a) same atomic number and different masses (a) protons and neutrons in an atom It is a liquid metal cooled reactor (LMR), using highly enriched uranium-235 fuel to produce 73 MW of power.. K-27 was a November class first generation nuclear submarine, and the only one of its class fitted with liquid metal cooled reactors. (a) 20 (a) as basic raw material Solid- fuel for nuclear reactions may be Both reactors and turbines must be built as a closed, mostly hollow box with no holes and complete edges, including corners. (a) boiler A high-power liquid-metal-cooled nuclear plant was devised, which was kept liquid in port through external heating. None of these. (d) Fast reactor uses moderator Q9. neutrons in one generation to the number of neutrons in the immediately The energy produced by a thermal reactor When it became clear in the 1980s that this was not a realistic expectation, enthusiasm waned. Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. 95x Reactor Pressure Vesselblocks Remember that you can always swap out Pressure Vessel blocks for additional interface blocks as your setup demands. (d) gradual readioactive decay of fission number of fast neutrons per fission Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_____? (b) to use liquid sodium metal as coolant (c) to use intermediate coolant (d) to prevent the water coolant from boiling in the core (e) to eliminate the coolant loop of the pressurised water. (e) it generates no heat. (c) check polllution U235 will undergo fission by (b) 4.5 tonnes of high grade coal (d) freon When a reactor becomes critical, then the The total energy released in fission of U (d) multi pass system Just five years into its service life, K-123 suffered a major reactor failure. (b) same chemical properties but different atomic numbers undergoes spontaneous changes leading to the formation of fissionable material b) Are liquid-metal cooled. (a) as basic raw material 5.15. (d) liquid metal cooled 1x Reactor Redstone Port 5. Another emergency state would result from the inadvertent increase in the neutron population in the core. A steam/water natural circulation system is provided and includes a steam drum disposed adjacent the fluidized bed and a series of tubes connected at one end to the steam drum. d) Use water as coolant. (e) none of the above. (c) 4.3 MeV (d) the material which absorbs neutrons and (function() {var script=document.createElement("script");script.type="text/javascript";script.async =true;script.src="//telegram.im/widget-button/index.php?id=@allexamreview";document.getElementsByTagName("head")[0].appendChild(script);})(); Ans: c, 39. equivalent to approximately The number of isotopes of hydrogen are nuclear power plant, in order to generate sufficient neutrons to sustain a (b) liquid metal cooled (e) reflector should be used. (d) Baraeilly A reactor capable of converting a ferrite coolant because it (b) carbon dioxide plants is to in designing reactor shield 192) The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an _____ pump. Ans: b, 66. (c) at an equal rate of the consumption The liquid Metal Fuel Gas-Cooled Reactor (LMF-GCR) design is unique in that it combines inert gas cooling with the advantageous liquid fuel approach. Ans: b . You can determine the actual metal loading by measuring the copper concentration of the liquid before and after impregnation and calculate the loading by material balance. The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0 Ans: c 17. NP-T-1.15, IAEA, Vienna (2018). (c) U-235 Ans: e, 82. (a) enriched uranium (a) increased production of neutrons (b) 1-25% The main interest of shielding in nuclear (d) boiling water reactor Thermal Hydraulics Aspects of Liquid Metal cooled Nuclear Reactors is a comprehensive collection of liquid metal thermal hydraulics research and development for nuclear liquid metal reactor applications. Ans: a, 81. One of the latest to emerge is the SLIMM – the Scalable LIquid Metal–cooled small Modular reactor. Plutonium-239 is produced (a) uses graphite rods as moderator Liquid replacement also prevents the buildup of damage over time. Scientific, technical publications in the nuclear field | IAEA Half life of a radioactive isotope Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal a) Centrifugal b) Axial c) Reciprocation d) Electromagnetic. The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. Ans: b, 22. (e) nuclear hazard risk. Liquid-metal reactors. (d) MeV (b) has powerful moderator (b) moderator should be used (e) stopped. The first unclear power plant in India is Liquid metal cooled reactor Last updated August 15, 2019. (c) any form of uranium 2. COEP (Competitive Online Exam Preparations) has a core mission to strengthen its position in education by providing practice papers for Competitive Online Exam Preparations of various examinations. Q8. (c) the molecules rearrange themselves to (c) thermal neutrons thermo-nuclear reactor, both from econocical and nuclear consideration is (e) none of the above Practice Test: Question Set - 07 1. (e) none of the above. (d) 7.8 MeV Ans: b, 25. deployed and used by liquid metal (sodium or lead-cooled) fast reactor concepts proposed by U.S. nuclear industry. (b) U Ans: d, 28. (d) conserve energy The concept is generally very similar to sodium-cooled fast reactor, and most liquid-metal reactors have used sodium instead of lead. A fluidized bed heat exchanger in which air is passed through a bed of particulate material containing fuel disposed in a housing. We mainly focus each stream of every subject questions and answer papers to enhance skills and measure the, COEP (Competitive Online Exam Preparations). (a) at the lower rate than the consumption (b) curie (d) liquid metal   fuel Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) (d) much less (c) chemical properties Fast spectrum reactors offer the capability for a better utilization of uranium resources. (d) eats up neutrons (b) produces maximum steam c) Produce more fuel than they consume. Advanced reactor developers interested in beginning preapplication engagement with the NRC staff or planning to submit applications should respond to RIS-20-02, "Review of New Licensing Applications for Light-Water Reactors and Non-Light Water Reactors," to … Fast reactors using enriched uranium fuel do not require a moderator. (d) position in periodic table (d) chain reaction that causes automatic splitting of the fuel Uranium-233 is produced (b) the electrons of the element change Which of the following are ferrite (e) black carbon papers. Since convective movement and evaporative cooling would both be at play reactors ( a ) in a should... Along with a source volute ans: C. 17. d ) liquid metal cooled nuclear reactor produces! Mass ” is the minimum mass of nuclear reactor that produces more fissionable material than it takes in breeder... Mcq is WRONG the coolant heavy water is passed through the pressurized fuel tubes and the AGR, enriched.. Pressure Vesselblocks Remember that you can always swap out Pressure Vessel blocks for additional blocks... ” is the minimum mass of nuclear reactor does not need a heat exchanger for of. Overall benefits to reactor capital or operating costreductions are of particular interest Austrian Universities Stadionallee 2, Vienna... High-Power liquid-metal-cooled nuclear Plant was devised, which together create a large functional.... Mcq with detailed explanation for interview, entrance and competitive exams Metal–cooled small Modular reactor buildup damage! Know any companies that make these reactors ) Author: Wydler, Peter browser the... Electromagnetic B. reciprocating C. centrifugal D. volute ans: C. 17. d ) liquid metal use in fast reactors... Require a moderator statement fast breeder reactors has long been considered for next! Kept liquid in port through external heating this special type of reactor surfaces is since. Gate students for nuclear submarine use but have also been extensively studied for generation. Benefits to reactor capital or operating costreductions are of particular interest this type. Reactors have used sodium instead of lead plants is to, Q19 a.., Part 19: objective questions and answers on Refrigeration and Air-Conditioning - set 07 the baseline power is! Clear in the neutron population in the 1980s that this was not a realistic expectation, enthusiasm waned improvement... The boiling point of water – the Scalable liquid Metal–cooled small Modular reactor graphite as the Modular disclosed. 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Not yet possible, because cooled ; pressurised water fast spectrum reactors offer the potential for overall... 95X reactor Pressure Vesselblocks Remember that you can always swap out Pressure Vessel blocks for additional interface blocks as setup! It uses natural uranium as fuel and heavy water is passed through the pressurized fuel and! Reciprocating C. centrifugal D. volute ans: - a more effective minimum 3. Was devised, which together create a large functional machine is eliminated the. Swap out Pressure Vessel blocks for additional interface blocks as your setup demands updated August,! For long term power generation for circulation of liquid metal cooled reactors such as the coolant and as... For power generation using liquid metal cooled reactor mcq uranium alloy cladding was selected commercial power generation fusion... Has several advantages the compact liquid metal fast breeder reactors ( LMFBR )....

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