A fast breeder reactor uses following as initial fuel: ( ) (A)highly-enriched uranium (B) plutonium (C) 238U (D) 235U (E) natural uranium 2 ia and Fast Breeder ReactorsInd Table 3.1 Containment design specifications. A. Enriched uranium. These reactors are used only in the UK. C. Pressurised water. FBRs usually use a mixed-oxide fuel core of up to 20% plutonium dioxide (PuO 2) and at least 80% uranium dioxide (UO 2). Mcq Added by: Muhammad Bilal Khattak. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. In Japan, an experimental fast-breeder reactor "Joyo" was first developed by the Japan Atomic Energy Agency (JAEA, former Power Reactor & Nuclear Fuel Development Corporation). Some fast breeder reactors can generate up to 30 percent more fuel than they use. 50. FBRs usually use a mixed oxide fuel core of up to 20% plutonium dioxide (PuO2) and at least 80% uranium dioxide (UO2). Reactors known as fast neutrons or breeders reactors do not need to slow down neutrons. The core of a breeder reactor contains fissile uranium and plutonium, atoms that split easily and release energy as heat and radiation. D. U ₂₃₅. A breeder reactor is essentially a particular configuration of a fast reactor. They take nuclear material that makes for poor fuel on its own and through the absorption of neutrons, make it into something more suitable as a fuel. 56 It is the key to India''s three-stage nuclear power programme. Reply. Just one of these pellets in a fast breeder reactor will produce the energy equivalent of any of the following: three tons of coal, 12 barrels of oil, 500 gallons of gasoline, or 75K cubic feet of natural gas. The liquid-metal fast breeder reactor (LMFBR) concept relies on plutonium fuel and 238 U (depleted uranium) for breeding of additional plutonium in amounts that exceed what is “burned” for power production. The efficiency obtained with liquid sodium is about 42%, whereas with other coolants it is about 28%. PAKMCQS MENU. The fast breeder reactor (FBR) is a fast neutron reactor designed to breed fuel by producing more fissile material than it consumes. 40 Table 3.2 CDA work energy calculations. Plutonium. A fast breeder reactor is a type of nuclear reactor that uses nuclear fission to create plutonium 239 atoms as a by-product of the splitting of uranium 235 atoms. The fast neutron environment minimises neutron capture reactions and maximises fissions in actinides. So then- both types of breeder reactors, the Liquid Metal Fast Breeder and the Molten Salt Breeder, can avoid the cost and complexity associated with … Water would have absorbed too many precious neutrons, and … B. The core uses closely packed fuel elements containing a high percentage of fissionable isotopes and generates most of the heat of the reactor from fast fissions in the fuel contained in the core. As a fuel, it uses natural uranium because, in a pressurized water reactor, the coolant can be used for boiling normal water in a different loop. Share this question with your friends. Table 1.1 Major fast breeder reactors. Fast . Under appropriate operating conditions, the neutrons given off by fission reactions can "breed" more fuel from otherwise non-fissionable isotopes. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. Fast Breeder Reactors. 41 Table 3.3 Cost of electricity. Yes and no. ” admin says: 13/08/2016 at 6:17 PM . D. All of the above. These reactors use C02 like the coolant & graphite like the moderator. The first unclear power plant in India is located at (a) Kota (b) Kalapakkam (c) Tarapur (d) Baraeilly (e) Kerala. Nuclear Power Plants Nuclear Power Plants. 44 apan’s Plutonium Breeder Reactor and its Fuel CycleJ Table 4.1 Commercialization in Japan. Gas cooled. A fast breeder reactor is one which breeds more material for a nuclear fission reaction than it consumes. The fast breeder reactor uses the following moderator (a) demineralised water (b) carbon dioxide (c) heavy water (d) graphite (e) no moderator is used. English Mcqs; … These simulated fuel pellets and the stainless steel fuel pin illustrate the size of actual fast breeder fuel pellets. Conventional reactors use uranium as fuel and produce some plutonium Breeders produce much more Plutonium, which can be separated and reused as fuel. The most common breeding reaction is that of plutonium-239 from non-fissionable uranium-238. Since plutonium does not exist naturally, it must be produced initially in a uranium fuel cycle. For this reason, no moderator is required to thermalize the fast neutrons. A fast breeder reactor uses following as fuel. 44 Table 3.4 Reliability of breeder reactors. There is renewed interest in fast reactors due to their ability to fission actinides, including those which may be recovered from ordinary reactor used fuel. VI Plutonium Fuel Cycle. C. Thorium. Answer: 4) 235 U. C. Thorium. Name * Email * Website. Creating extra fuel in nuclear reactors, however, is not without … Which among the following is the fuel used in fast breeder test reactor at Kalpakkam? B. Submit. A. Boiling water. Fast reactors generally have an excess of neutrons (due to low parasitic absorbtion), the neutrons given off by fission reactions can “breed” more fuel from otherwise non-fissionable isotopes or can be used for another purposes (e.g.transmutation of spent nuclear fuel). Please do not use chat terms. Fast breeder reactors (FBRs) are essentially a more powerful version of FNRs in that they produce more plutonium than they consume. Ans: e ; The first unclear power plant in India is located at (a) Kota (b) Kalapakkam (c) Tarapur (d) Baraeilly (e) Kerala. 34. D. U ₂₃₅. One Comment on “ Fuel used in a Fast Breeder Reactor is _____? Plutonium. It is supposed to minimize nuclear waste. The BN-800 fast breeder reactor, like all modern fast breeder reactors, uses liquid sodium as its coolant. Therefore, liquid sodium, which is an efficient coolant and does not moderate neutrons, is used to take away heat produced in the core. The power density in a fast breeder reactor is considerably higher than in normal reactors. Answer: [C] Thorium Notes: Please note that Kamini is the only reactor in the world to use Uranium-233 type fuel, which is converted from Thorium. A fast breeder reactor uses following as fuel_____? Ans: c 35. Ans: e . Example: avoid using "grt" instead of "great". This process creates more fuel in the form of plutonium 239 than it uses. Technically it can be done, in fact a fuel cycle called DUPIC (Direct Use of Spent PWR fu in CANDU) was developed by the (then) AECL in the 1990s. Answer & Solution Discuss in Board Save for Later. The blanket absorbs the excess neutrons produced by the core. This ability to create, or "breed," additional fuel accounts for the name given to these types of reactors. Leave a Reply Cancel reply. Gas-cooled Reactors. A. Enriched uranium. 49. These are available in two types namely the Magnox and the AGR (advanced gas-cooled reactor). A breeder reactor is a type of power reactor that operates without a moderator to slow the neutrons. B. Fast Breeder Reactor. Your email address will not be published. A fast breeder reactor uses following as fuel. While fast neutrons are less likely to be absorbed by uranium-235 or plutonium-239 than thermal neutrons, the highly enriched fuel used in fast breeder reactors allows for a self-sustaining nuclear chain reaction. Our country has large deposits of thorium resource but a limited one of uranium resource. Superheated steam is generated in following reactor. Apart from a fast-breeder reactor, the main alternative is to blend the plutonium with other fuel to create a mixed-oxide fuel (mox) that will burn in conventional nuclear power plants. A. enriched uranium B. plutonium C. thorium D. U235 E. natrual uranium. The Japanese Atomic Energy Agency (JAEA) disclosed details of an accident that happened on August 26, 2010 at the Monju fast breeder reactor (here is the original JAEA letter).As described in the press, the accident involved a 3-tonne "fuel-replacement device" falling into the reactor vessel when being removed after a scheduled fuel replacement operation. Fast breeders do not require moderation since the neutrons need to be moving fast, whereas thermal breeders make us of moderation to achieve slower-moving neutrons. … This is a nuclear reactor without electric generating facilities, and started operation in 1977 with the aim of accumulating technical experiences of the fast-breeder reactor. The fast breeder reactor uses the following moderator (a) demineralised water (b) carbon dioxide (c) heavy water (d) graphite (e) no moderator is used. 2 Explanation In a fast breeder reactor, once started with a small amount of U 235 , the generated fast neutrons are captured by U 238 . Required fields are marked * Comment. Correct Answer : D. Comment. The fast reactor has no moderator and relies solely on fast neutrons to cause fission, which for uranium is less efficient than using slow neutrons. PRS14-L1 A fast breeder reactor uses following as initial fuel (1) highly-enriched uranium (2) plutonium (3) 238 U (4) 235 U (5) natural uranium. Answer & Solution Discuss in Board Save for Later. A fast breeder reactor uses following as fuel_____? Fast breeder reactors which use uranium-238 as fuel and thermal breeder reactors which use thorium-232 as fuel. So the reactor starts on uranium fuel and each time the fuel is replaced it transitions gradually to plutonium fuel. 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