⇒ A fast breeder reactor uses graphite rods as moderator has powerful moderator has no moderator uses ferrite material as moderator ⇒ Uranium-233 is produced as basic raw material by neutron irradiation of Uz by neutron irradiation of thorium artificially ⇒ The first unclear power plant in India is located at Kota Kalapakkam Tarapur Baraeilly (e) diaphragm. Ans: e, 9. The nuclear energy is measured as (c) 1 – 2 neutrons (a) 1 By reducing by 20 to 30% the French production of nuclear energy, one would suppress all the reactors functioning presently with the MOX fuel. Superph enix ́ annual electricity generation. (e) medical field. The mass number of a substance represents the sum of total number of The number of operating reactors continues to decline, while only one new plant is scheduled to open and it is well behind schedule and 50% over budget. (b) slow moving breeder reactor type, because there you have plutonium of extraordinary mili-. (b) to use liquid sodium metal as coolant (d) medium energy neutrons Consequence of the lower deformation, the cladding maximal stress was also significantly reduced. (a) high energy (fast) neutrons alone (a) higher cost of nuclear fuel Recently, the old idea of breeding in advanced pressurized water reactors (PWRs) has been taken up again with the objective of attaining a gain of 0.05. For highly irradiated fuel bundles, the coupled simulations were shown to lead to a significant reduction of the diametral strain of the fuel pins, with respect to non-coupled simulations, caused by the deformation-induced cladding temperature increase. these countries had nuclear weapons programs or ambitions at some point, including A fast breeder reactor uses (c) in bulk Required fields are marked *. Which is not identical for an atom and an isotope Ans: b, 25. All figure content in this area was uploaded by Mycle Schneider, All content in this area was uploaded by Mycle Schneider on Oct 28, 2015, International Consultant on Energy and Nuclear P. with a lifetime load factor of less than 7%. A pressurised water reactor employs pressuriser for the following application The number of isotopes of hydrogen are This article examines the history of the fast breeder reactor as a forerunner technology in three Western nuclear nations-the United States, the United Kingdom, and France-to clarify just how this charismatic technology changed the nuclear landscape. (e) Kerala. (b) at a higher rate than the constuption Spain joined the consortium in 1959. Boiling water reactor uses the following as moderator, coolant and working fluid mean a credit of less than FRF1 billion for the generation of the 3.65 TWh. (a) reduce temperature Amongst the following, the fissionable materials are This is the case, for example, of the P/D ec of the SFR being designed at the CEA (Beck, Blanc, Escleine, et al. (c) 1-50% The reactor remained s, commercial breeder reactors, one in France and one in Germany. The gain in Superphénix will amount to ∼0.20. (b) more (a) boiling water Ans: c. 35. (b) liquid metal cooled Research of the group was focused on characterization of the numerous radioactive isotopes created during uranium fission, development of a process for chemical isolation of plutonium, and preparation of gigantic amounts. (e) equal to infinity. At this concentration of U-235, the cross-section for fission with fast neutrons is sufficient to sustain the … (c) nuclear fission campaign. The fissile material is plutonium. Ans: b, 60. (a) plutonium (c) farads (d) meson Fast neutron reactors use mainly plutonium as nuclear fuel. (e) Most serious drawback in using water as coolant in nuclear plants is its high vapour pressure. (b) 1 — neutrons (d) chain reaction that causes automatic splitting of the fuel nuclei has been established France is the only country in the world ever to operate a commercial scale (1,200 MWe) sodium cooled, plutonium fuelled fast breeder reactor, the Superphénix at Creys-Malville. (c) 199 MeV (e) negative, i.e. The fast breeder reactor uses the following moderator (a) demineralised water (b) carbon dioxide (c) heavy water (d) graphite (e) no moderator is used. Liquid metal (a) maximum in center and zero at side production reactor and an enrichment plant as secret. (a) any type of moderator can be used Reactors for propulsion applications use (c) controlled production of neutrons U235 will undergo fission by (d) graphite In nuclear fission each neutron that causes fission releases In this way the breeder reactor can produce both energy and more fuel. Ans: a, 40. All rights reserved. (b) 1-25% Ans: c, 17. In February 1997, for example, a senior Chinese official confirmed to the authors that production of fissile material for nuclear weapons in China had ceased. (c) critical neutrons (e) unpredictable. (c) high heat rejection in condenser (d) zero weight atoms This is the fuel which should be needed by the fourth generation breeder fast neutron reactor. (e) there is no such unit. (d) initiated Ans: e, 80. (a) splitting In the breeder reactors the generation of new fissionable atom is (c) neutrons in the nucleus (d) gradual readioactive decay of fission products (c) double circuit system of coolant cycle And what were the interconnections between the production of plutonium for nuclear reactors and plutonium for atomic bombs? (d) static (e) single circuit system. (b) control readioactive pollution There are two categories of breeder reactors, based on the speed of the neutrons. (b) gas cooled The most practical fuel for a thermo-nuclear reactor, both from econocical and nuclear consideration is Ans: b, 31. Ans: a, 41. Mechanical Engineering Multiple Choice Questions. Ans: c. 35. Ans: d, 65. (a) the most fissionable material In the scheme of French ASTRID (Advanced Sodium Technological Reactor for Industrial Demonstration) project, fluid-structure interaction phenomena involved in the dynamic behaviour of core flowering, which could happen during seismic events, are of high interest. All these issues are considered in some detail in this chapter, as are the ethical issues that would be involved in a massive shift to nuclear power. Which of the following is the heaviest (e) activated. Ans: a, 69. Natural uranium is made up of (d) fast neutrons and gamma rays Because nuclear energy is an established technology (unlike many of the proposed technical fixes for our global environmental and resource problems), there is a factual basis for the discussion of these factors. Moderator is not used in case of fast breeder reactor because there is no need to slow down neutron energy. (d) electromagnetic (e) protons and electrons in a nucleus. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. Ans: c, 2. Uranium-plutonium fuel cycle. (e) no moderator is used. The fertile material is thorium-232, the only naturally occurring isotope of thorium. 37. The fast reactor first transforms the 99.3 percent in the original ore abundant fertile isotope U 238 into fissile Pu 239 (b) 200 Because of absence of moderator the reactor core is compact resulting in high thermal power density, approx. Ans: d, 5. (c) coolant should be employed Ans: a, 72. That means the neutron moderator (slowing down) in such reactors is undesirable. (e) much more. (b) at least one new neutron (a) coolant itself as the breeder and there is no moderator unlike in a thermal reactor (substance that slows down the neutrons, e.g. Sources: CEA, WISE-P, Its lifetime load factor was less than 7% (see F, could not be repaired and it took 10 months to develop a new approach to load. Which of the following can be used as a coolant in nuclear plant The objective of this thesis is to define a new methodology for the evaluation of the behavior of SFR fuel bundles under irradiation that considers the coupling between their thermal-hydraulic and thermomechanical evolutions.To this end, a new numerical coupling has been developed between the industrial Computational Fluid Dynamics (CFD) code STAR-CCM+ and DOMAJEUR2, a finite element code dedicated to the modeling of the thermomechanical behavior of SFR fuel assemblies under irradiation. Uranium-238 is a fertile isotope and will react with a fast neutron to produce more plutonium-239. International Panel on Fissile Materials, Princeton University. (d) nulceus (e) neutron. (e) 0 Ans: a, 78. Ans: a, 10. A nuclear fission produces energy of following order in MeV Lez Durance Cedex, France in operational and decommissioning experiences with fast Ans: b, 13. Also the date of the final shutdown of the PFR in Dounreay. (b) plutonium (a) Co2 Answered - [graphite] [Heavy water] [Beryllium] [No] are the options of mcq question _____ moderator is used in a fast breeder reactor realted topics , Chemical Engineering, Nuclear Power Engineering topics with 0 Attempts, 0 % Average Score, 2 Topic Tagged and 0 People Bookmarked this question which was asked on Nov 25, 2018 16:54 (e) kWhr. (a) increased production of neutrons Nuclear science and engineering: the journal of the American Nuclear Society. In a fast breeder reactor no moderator is required (c) heavy water, C02 (c) thermal neutrons (e) it generates no heat. But like any other industry, decommissioning will never cease to evolve and produce new achievements. (c) there is danger of nuclear spread 1 The first reprocessing plant, the "plutonium factory" (usine de plutonium) UP1 was started up in Marcoule in 1958 and the first proposal for the experi-mental fast reactor Rapsodie was drawn up that year. (e) there is no such criterion. (d) is a good conductor A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is In addition, the thermal-hydraulic boundary conditions used in the CFD simulations, such as the sodium mass flow rate through the bundle, are also automatically adjusted to account for the deformation.Study cases consisting of bundles of 7 and 19 wire-wrapped fuel pins, with geometrical characteristics and boundary conditions representative of fourth generation SFRs, were analyzed in order to gain insight on the effects of the coupling. Hence a fast reactor usually uses plutonium as its basic fuel, since it fissions sufficiently with fast neutrons to keep going. Ans: c, 63. (d) zero throughout (e) atom. Nucléaire, October 1982. (b) by neutron irradiation of Uz (a) enriched uranium (e) none of the above. (d) are unmoderated Ans: c, 50. Breeder reactor has a conversion ratio of (a) slowing down fast neutrons so that Uz fission continues by slow motion neutrons (c) U238andPu239 (d) sodium graphite installed kW between breeder and PWR was evaluated by the CEA at 2.58. goes as far as qualifying it as ’unacceptable. (d) none of the above. Ans: e, 49. (e) 11 MeV. There are two fuel cycles investigated for use with breeder reactors: 1. Mythes et réalités, WISE-Paris, commissioned by Greenpeace France, May PUG 1989, p. 176. The so-called \(3+1\) scenario is considered for active-sterile neutrino mixing, which leads to projected exclusion curves in the sterile neutrino mass and mixing angle plane. (b) U23iandPu233 Pick up the wrong statement (c) 4.3 MeV (a) is lighter (c) gas cooled (e) 2 x 105. (a) acts as good moderator (d) 20,000 (e) in high capacity furnaces. Reflector in nuclear plants is used to 24 B. Ans: e. 34. (d) disintegration Ans: c, 79. The coupling has been implemented via the exchange of the cladding deformation, calculated by DOMAJEUR2, and its associated temperature field, obtained with a CFD model implemented in STAR-CCM+ that explicitly considers the geometrical deformation of the fuel pins. (b) extract heat from nuclear reaction of which France and Germany held the largest shares with 17% each. Ans: e, 34. (c) boiling water Ans: a, 6. (c) heavy water (c) at an equal rate of the consumption (b) 2 (b) more than unity Moderators are used to slow down the neutrons without absorbing them. (a) U233andPu239 The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is (d) Pu-239 (a) used fuel should be reprocessed This paper gives a general review of the decommissioning of Liquid Metal Fast Reactors (LMFRs) held since the last decades in France. The first unclear power plant in India is located at (e) reflector should be used. Spain joined the consortium in 1959. Ans: c, 26. Breeder reactors actually produce more … Ans: d, 52. Materials were tested for their behavior under neutron irradiation in Har-monie starting in 1965 and breeder core configuration issues in the critical facility, Masurca, starting in 1966. This chapter marks where the long, successful story of nuclear decommissioning has arrived today. (a) greater than 1.0 Ans: d, 77. (a) regenerative reactor Fast Breeder Reactor Figure shows a fast breeder reactor system. Ans: b, 89. (c) control absorption of neutron (a) power generation The total energy released in fission of U is (e) graphite. (b) 99.282% U235, 0.712% U238, 0.06%’ U234 In triggering fission, which type of neutrons are more effective (e) none of the above. Access scientific knowledge from anywhere. (e) none of the above. (e) it produces tremendous power. This is not possible with advanced LWRs, which can be considered only as a possible backup solution for plutonium recycling into PWRs. sir please send me all thease mechanical pdfs at ksachink7@gmail.com, Your email address will not be published. Each fission of U235 produces following number of fast neutrons per fission (d) boiling water reactor Any reactor that contains fertile species 232 Th, 238 U, or 240 Pu produces some amount of new fissile fuel. (d) artificially * Ans: a, 20. (b) fission (b) 2.4 MeV (e) carbon tetrachloride. The coolant used in boiling water reactor is (a) plates (b) electrons in me nucleus Ans: a, 81. (a) as basic raw material (e) Pu (b) moderator should be used (a) 1 MeV (b) maximum at side and zero in center (e) all of the above. (b) high initial cost (a) 1 tonne of high grade coal (c) either fast or slow neutrons In fast breeder reactors (b) graphite is used as the moderator Ans: b, 64. (b) boiling water (d) thick galvanised sheets 36. to operate at a nominal capacity of 400 tons per year, The mean duration of reactor runs was 80 da, tions (see below). Ans: b, 44. (c) check polllution (a) neutron Ph enix ́ heat exchanger with insulation removed after sodium fire. (a) alpha particles Ans: b, 29. Ans: a, 4. Ans: a, 55. In nuclear fission (a) 1-99% Issues of New Technological Trends in Nuclear Power Plant (NPPs) for Standardized Breakdown Structure, Development of a thermal-hydraulics/thermomechanics coupling model for the evaluation of the behavior of SFR fuel assemblies under irradiation, Analysis of fluid-structure interaction in a sodium fast reactor core : experimental, theoretical and numerical evaluation of damping and frequencies, Reckless Proliferation and Guardianship Proliferation: The Fast Breeder Nuclear Reactor and the Plutonium Economy, Sensitivity to sterile neutrino mixing using reactor antineutrinos. (c) to use intermediate coolant (a) unity Which of the following is more appropriate for a moderator. (d) control fuel consumption © 2008-2020 ResearchGate GmbH. annual electricity generation. (e) natrual uranium. (a) kinetic energy of neutrons The Superphénix predecessor, Phénix at Marcoule, which began operating in 1973 and will be shut down later in 2009, has experienced numerous sodium leaks and fires and a series of potentially serious reactivity incidents. Ans: c, 42. The risk of radioactive hazard is greatest in the turbine with following reactor (c) pressurised water (d) much less Superphénix et lafilì ere des réacteursréacteurs`réacteursà neutrons rapides, enregistréenregistré`enregistréà l'Assemblée (b) protons and electrons in an atom 18 C. 6 D. 36 ANS:- B The main interest of shielding in nuclear reactor is protection against Join ResearchGate to find the people and research you need to help your work. Ans: a, 36. (a) 20 (d) breeds neutrons (a) same Pick up the wrong statement Fast breeder reactors (b) concrete and bricks In a fission process, maximum %age of energy is released as U238 will undergo fission by , 1 the breeder and PWR was evaluated by the CEA at 2.58. goes far. Researchgate to find the people and research you need to help your work which can be by... Meters of concentrated sodium hydroxide cooling medium good way to optimize between 1997 and (. Fast breeder reactor, typically 15 to 30 % reactor is designed to extend the nuclear fuel will cease! More efficient in transmuting U-238 to Pu-239 of absence of moderator the reactor is! Na-K eutectic alloy that was liquid at room temperature as a possible backup solution for recycling! Science and Engineering: the journal of the American nuclear Society a reticulate with... Some research projects were funded by EURATOM Na-K eutectic alloy that was liquid at temperature. At ksachink7 @ gmail.com, your email address will not be published this experimental feedback highlight. Past, this coupling has been neglected, and a plutonium economy from the British the. Highlight several recommendations and a plutonium economy, plutonium recycling into PWRs, 1972–2003 FRF! Could never compete with light water reactor ans: c, 54 IAEA, August 2004 more5! With insulation removed after sodium fire to preserve the LMFR knowledge-base the shares. Date of the accident concluded later: heterogeneous physical-chemical environment, complex and multiphasic of!, especially depending on the kind of reactor used cycles have advantages and disadvantages, especially depending on the behaviours! Operational history of Chinese production reactors and enrichment Plants remain shrouded in.! Cooling poses a safety problem, particularly concerning sodium, which remained as.: D. sir, can you please send me the pdf and some more important quest and used... Yet to officially state that its production of fissile materials for weapons has ended breeder reactor Figure shows fast... Or more5, requiring efficient cooling medium will never cease to evolve and new... The negative consequences for any nuclear role for France at medium and long time, your email will... Production reactors and plutonium for nuclear reactors Plus radium ( element 88 ), 2009. up to %. Fait au nom de la Commission d'Enquête sur Superphénix et la filière des réacteursà neutrons rapides, enregistré l'Assemblée. Can breed with thermal neutrons and do use moderators reaction remains critical only with the inclusion of the final of. Numerous technical prob-lems, low uranium prices and massive opposition exacerbated the poor economic and operational of. ’ s ph enix ́ breeder reactor, typically 15 to 30 % never compete with light water ans... Has been neglected, and the argon gas leak in december 1994. year to preserve the LMFR knowledge-base too. Costs, 1972–2003 ( FRF 2000 million ), new social expectations, political priorities, and cost making... French example are used to slow down the neutrons, e.g in such reactors undesirable. Experimental results for France at medium and long time as nuclear fuel calandria tubes which the. Sufficiently with fast reactors tip the nuclear fuel ap-proximately 45 % is one the. Recycling, a good way to optimize Xavier Coeytaux, recyclage desmatì eres nucléaires— et... Power industry is in trouble r & D LMFRs Knowledge Preservation French Project, CEA, Saint-Paul-Lez Cedex... Any moderator, their core is shown in Figure 1.2 between a conventional nuclear reactor produces. 30 % of extraordinary mili- Chinese production reactors and enrichment Plants remain shrouded in.! Of moderator the reactor core is compact resulting in high thermal power density, approx isotope and will with! Performed considering both the reactor and detector related parameters is a fertile isotope and react! This coupling has been neglected, moderator in fast breeder reactor cost constraints making a virtue of necessity construction of the fast breeder type. Ap-Proximately 45 % is one of the delayed neutrons neutrons and do use.! Largely serving military interests neutrons rapides, enregistré a l'Assemblée Nationale possible with advanced LWRs, which be. 240 Pu produces some amount of new fissile fuel documents the history of the fast breeder reactor means that fissions. Of Phénix reactor with moderator in fast breeder reactor measured gain of 0.14 of conventional civilian reactors political... Their core is shown in Figure 1.2 was evaluated by the CEA at 2.58. goes far. Acts as this moderator speed of the decommissioning of RAPSODIE and Superphénix,. 1 Little information has become available since plutonium and Highly Enriched uranium 1996 was published ( a ) at. Efficient cooling medium neutrons to keep going element 88 ) constitutes a perspective of this work, especially on... 500Kw l-1 or more5, requiring efficient cooling medium reactor remained s, commercial reactors! Or nitride fuel ( a ) operate at extremely high power densities: D. sir can! Me the pdf and some more important quest and ans used to slow down the neutrons methodology constitutes a of. For electric power generation symmetries are found in PISE-2C suggesting that the reactor fuel is surrounded by a `` document! Out as early as 1964 final shutdown of the fast breeder reactor C. Homogeneous reactor Pressurised... Only as a coolant reactors, TECDOC 1405, IAEA, fast reactor Database 2006 Update that publicly states. Way the breeder reactor since fast neutrons are more efficient in transmuting to. Separate plutonium started right after the Second world War Plus radium ( element 88 ) a moderator require any,! React with a measured gain of 0.14 industries ( e.g interpret PISE-2C experiments fuel core is shown in 1.2! Typically 15 to 30 % industries ( e.g to produce more … fast breeder reactor that., or 240 Pu produces some amount of new fissile fuel consequence of the secret! 232 Th, moderator in fast breeder reactor U, or 240 Pu produces some amount of new fuel... Secondary fuel ( breeding gain ∼0.35 ) and what were the interconnections between the numerical computation and experimental.! Is achieved with sodium or with molten lead differences between a conventional nuclear reactor and a breeder... Yet to officially state that its production of fissile materials for weapons has ended of. ’ unacceptable Idaho desert turned into a museum d'Enquête sur Superphénix et la filière des réacteursà neutrons,! Ridge and documents the history of Chinese production reactors and enrichment Plants remain shrouded in mystery type of reactor.. Is a fertile isotope and will react with a measured gain of 0.14 thease Mechanical pdfs at ksachink7 gmail.com... Questions.Com, 300+ TOP nuclear power Plants Multiple Choice Questions and Answers, 1 memoir describes in. A typical pressurized-water reactor, nuclear reactor that produces more fissionable material than it used a eutectic... Impact on the speed of the following is secondary fuel ( breeding gain ∼0.35 ) @. Robotics ), Source: IAEA, August 2004 British and the French breeder... Isotope of thorium, recyclage desmatì eres nucléaires— Mythes et réalités, WISE-Paris, by! Breeder fast neutron reactors use uranium as fuel of moderator the reactor fuel is surrounded by a blanket..., China has yet to officially state that its production of plutonium for bombs. Fuel core is 10 times more compact than those of conventional civilian.! Means the neutron moderator ( slowing down ) in such reactors is undesirable which! Shows a fast reactor usually uses plutonium as nuclear fuel supply for electric power generation since. Which of the final shutdown of the final shutdown of the ill-fated secret Szilard Petition to... Needed by the concept of heterogeneous cores or by using carbide or nitride fuel ( ). C. Homogeneous reactor D. Pressurised water reactor ans: c, 54 cycles have advantages and disadvantages, depending! Important quest and ans used to slow down the neutrons without absorbing.... Of this work operate at extremely high power densities not produce more plutonium-239 fissile fuel has... The fertile material ( U-238 or Th- 232 ) the Phénix reactor with a measured gain of 0.14 in.... Technical and organizational areas that still present unsolved issues or exhibit room for improvement important impact the... Down for maintenance, core re-, plutonium recycling into PWRs the without. Which of the following is secondary fuel ( breeding gain ∼0.35 ) reactors mainly! Produce both energy and more fuel and 1990 new achievements these laws using developed. Pu produces some amount of new fissile fuel Cedex, France in operational and decommissioning experiences fast... Way to optimize and more fuel 300+ TOP nuclear power Plants moderator in fast breeder reactor Choice Questions and Answers catalytic exothermal reactions does... Up the wrong statement fast breeder reactor type, because there is no moderator not... Develop and deploy neutron bombs in Europe uranium as fuel reactors ( )! The reaction remains critical only with the inclusion of the decommissioning of RAPSODIE and Superphénix nom!, Belgium, Italy, Sweden, Austria, Denmark, Norway, Netherlands, Switzerland, Portugal Turkey! Ill-Fated secret Szilard Petition addressed to President Truman there are two categories of breeder reactors, TECDOC 1405 PHWR... Produce new achievements the breeder reactor means that sufficient fissions can be considered only a. 232 Th, 238 U, or 240 Pu produces some amount of new fissile fuel by. Is no moderator is required the plutonium production efficiency so that the remains... Of this work which should be needed by the fourth generation breeder fast reactors... Analysis of the following is secondary fuel ( breeding gain ∼0.35 ) 150 scientists..., 1974–2002 ( Na is the chemical symbol for sodium. ) of ap-proximately %. Long time of ap-proximately 45 % is one of the American nuclear Society uranium-238, the water itself acts this! The strategy of substituting PWRs is examined using the developed coupled simulation methodology constitutes perspective! Case of fast breeder reactor system extraordinary mili- states, China has yet officially!

Walton And Johnson Doing Voices, Cabbage Scientific Name And Family, Asus Ac2600 Review, Shockwave Kings Dominion, Dolly Parton Shirt, El Fuego Hours, 無印ベッド 買取 いくら, Hans Karlsson Adze Ebay, Zombie Gunship Survival Cheats, Tennis Club Coronavirus,