Reactors known as fast neutrons or breeders reactors do not need to slow down neutrons. Our country has large deposits of thorium resource but a limited one of uranium resource. D. U ₂₃₅. Ans: c 35. Which among the following is the fuel used in fast breeder test reactor at Kalpakkam? The power density in a fast breeder reactor is considerably higher than in normal reactors. Therefore, liquid sodium, which is an efficient coolant and does not moderate neutrons, is used to take away heat produced in the core. Answer & Solution Discuss in Board Save for Later. 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. 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 … These reactors use C02 like the coolant & graphite like the moderator. B. Name * Email * Website. Gas cooled. It is supposed to minimize nuclear waste. Creating extra fuel in nuclear reactors, however, is not without … Leave a Reply Cancel reply. A breeder reactor is a type of power reactor that operates without a moderator to slow the neutrons. 49. This process creates more fuel in the form of plutonium 239 than it uses. 56 A breeder reactor is essentially a particular configuration of a fast reactor. B. English Mcqs; … So the reactor starts on uranium fuel and each time the fuel is replaced it transitions gradually to plutonium fuel. B. The first unclear power plant in India is located at (a) Kota (b) Kalapakkam (c) Tarapur (d) Baraeilly (e) Kerala. These simulated fuel pellets and the stainless steel fuel pin illustrate the size of actual fast breeder fuel pellets. The fast neutron environment minimises neutron capture reactions and maximises fissions in actinides. A fast breeder reactor uses following as fuel_____? Your email address will not be published. Conventional reactors use uranium as fuel and produce some plutonium Breeders produce much more Plutonium, which can be separated and reused as fuel. Plutonium. 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. It is the key to India''s three-stage nuclear power programme. C. Thorium. Answer & Solution Discuss in Board Save for Later. Gas-cooled Reactors. This ability to create, or "breed," additional fuel accounts for the name given to these types of reactors. C. Thorium. Fast Breeder Reactors. Fast Breeder Reactor. For this reason, no moderator is required to thermalize the fast neutrons. The core of a breeder reactor contains fissile uranium and plutonium, atoms that split easily and release energy as heat and radiation. The blanket absorbs the excess neutrons produced by the core. VI Plutonium Fuel Cycle. 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. The BN-800 fast breeder reactor, like all modern fast breeder reactors, uses liquid sodium as its coolant. A fast breeder reactor uses following as fuel. A fast breeder reactor uses following as fuel_____? A fast breeder reactor is one which breeds more material for a nuclear fission reaction than it consumes. Example: avoid using "grt" instead of "great". Nuclear Power Plants Nuclear Power Plants. Fast breeder reactors which use uranium-238 as fuel and thermal breeder reactors which use thorium-232 as fuel. D. U ₂₃₅. Correct Answer : D. Comment. 2 ia and Fast Breeder ReactorsInd Table 3.1 Containment design specifications. 50. 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). 44 apan’s Plutonium Breeder Reactor and its Fuel CycleJ Table 4.1 Commercialization in Japan. Water would have absorbed too many precious neutrons, and … The efficiency obtained with liquid sodium is about 42%, whereas with other coolants it is about 28%. ” admin says: 13/08/2016 at 6:17 PM . 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. The fast breeder reactor uses the following moderator (a) demineralised water (b) carbon dioxide (c) heavy water (d) graphite (e) no moderator is used. … Fast breeder reactors (FBRs) are essentially a more powerful version of FNRs in that they produce more plutonium than they consume. A fast breeder reactor uses following as fuel. 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 . 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). Mcq Added by: Muhammad Bilal Khattak. PAKMCQS MENU. The fast breeder reactor uses the following moderator (a) demineralised water (b) carbon dioxide (c) heavy water (d) graphite (e) no moderator is used. 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. C. Pressurised water. Superheated steam is generated in following reactor. Under appropriate operating conditions, the neutrons given off by fission reactions can "breed" more fuel from otherwise non-fissionable isotopes. FBRs usually use a mixed oxide fuel core of up to 20% plutonium dioxide (PuO2) and at least 80% uranium dioxide (UO2). The most common breeding reaction is that of plutonium-239 from non-fissionable uranium-238. 44 Table 3.4 Reliability of breeder reactors. One Comment on “ Fuel used in a Fast Breeder Reactor is _____? A. Enriched uranium. These are available in two types namely the Magnox and the AGR (advanced gas-cooled reactor). Ans: e . Fast . 40 Table 3.2 CDA work energy calculations. 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. 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. Boiling water. Share this question with your friends. 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. Please do not use chat terms. Plutonium. 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. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. Submit. A. Enriched uranium. Ans: e ; The first unclear power plant in India is located at (a) Kota (b) Kalapakkam (c) Tarapur (d) Baraeilly (e) Kerala. Table 1.1 Major fast breeder reactors. 41 Table 3.3 Cost of electricity. A. enriched uranium B. plutonium C. thorium D. U235 E. natrual uranium. Some fast breeder reactors can generate up to 30 percent more fuel than they use. 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. With fuel enriched to 15 or 20% in uranium-235 or plutonium, it become no longer necessary to "thermalize "neutrons as in the common pressurized water reactors, for example. The fast breeder reactor (FBR) is a fast neutron reactor designed to breed fuel by producing more fissile material than it consumes. 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. These reactors are used only in the UK. FBRs usually use a mixed-oxide fuel core of up to 20% plutonium dioxide (PuO 2) and at least 80% uranium dioxide (UO 2). Yes and no. Answer: 4) 235 U. Required fields are marked * Comment. 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. 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. 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. D. All of the above. 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. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. A fast breeder reactor uses following as initial fuel: ( ) (A)highly-enriched uranium (B) plutonium (C) 238U (D) 235U (E) natural uranium Since plutonium does not exist naturally, it must be produced initially in a uranium fuel cycle. 34. 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. Reply. Uranium B. plutonium C. thorium D. U235 E. natrual uranium can `` breed '' more fuel from otherwise isotopes. Breeders reactors do not need to slow the neutrons given off by fission reactions ``! Material for a nuclear fission reaction than it consumes neutrons or Breeders reactors do need... 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