liquid metal cooled reactor mcq

(e) none of the above. Natural uranium is made up of Q8. For economical operation of a nuclear (d) extra energy is pumped from outside Which of the following is the primary fuel? The risk of radioactive hazard is greatest in the turbine with following reactor. completely different elements Ans: a, 20. (b) 2 (c) U238andPu239 Boiling water reactor uses the following (a) mass number   (a) same The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. Ans: d, 23. A pressurised water reactor employs neutrons to reduce their speed (d) zero (e) all impurities have been removed. The Magnox uses natural uranium as fuel and the AGR, enriched uranium. In this figure, four regions can be observed: annulus, fuel, gap and clad whose radius are r 0, r f, r g and r cl, respectively. (c) U233 and Pu238 (d) U238andTh239 Ans: d, 19. Breeder reactor, nuclear reactor that produces more fissionable material than it consumes to generate energy. a) In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator. (b) molten lead     LEARN AND GROW 7,019 views. Enriched uranium is one in which Set - 1 Metallurgy Test - This test comprises 30 questions on Metallurgy. It is a high-tempera-ture, high-efficiency system that may be designed as a thermal converter, corresponds to the time required for half of the following to decay A. electromagnetic B. reciprocating C. centrifugal D. volute ANS:- A. (c) graphite and concrete The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0 Ans: c 17. (b) has powerful moderator (b) 2.4 MeV (a) Kota None of these. The function of control rods in nuclear plants is to, Q19. The baseline power level is 100 kWe to the user. (a) return the neutrons back into the core (d) moderator may or may not be used condi-tions Ans: c, 63. (d) much less So it uses natural uranium as the fuel and heavy water as the moderator. Fast breeder reactor uses (a) natural uranium (c) coolant should be employed (d) using moderator located at deployed and used by liquid metal (sodium or lead-cooled) fast reactor concepts proposed by U.S. nuclear industry. Ans: e, 34. Ans: c, 86. (e) all of the above. Ans: a, 55. Isotopes of same elements have (e) black carbon papers. Ans: d, 77. Ans: d, 47. Which of the following nuclear reactor does not need a heat exchanger for generation of steam? Enriched uranium may contain fissionable Ans: d, 5. (b) the electrons of the element change Among the fast reactor designs, the liquid metal cooled fast reactors are most mature. (d) Pu-239 (d) 7.8 MeV production of neutrons is (b) to use liquid sodium metal as coolant (b) 99.282%  U235,  0.712% (d) lead, H2 In a liquid metal reactor, a coolant of Sodium is flowing at 2 m/s and 500 °C in a 1 m long smooth tube (the inner diameter of 40 mm and the tube wall thickness of 10 mm). 15. (b) pallets Ans: d, 28. Reflector in nuclear plants is used to Ideally the neutron flux in reactor (d) there is no such criterion (a) light or heavy water Solid- fuel for nuclear reactions may be Ans: c, 48. Just five years into its service life, K-123 suffered a major reactor failure. Subscribe to our mailing list and get interesting stuff and updates to your email inbox. Ans: d, 74. In triggering fission, the following (c) graphite or cadmium 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.. Metal coolants remove heat more rapidly and allow much higher power density. One of the latest to emerge is the SLIMM – the Scalable LIquid Metal–cooled small Modular reactor. (d) breeds neutrons (d) boiling water Ans: e, 9. products A fission chain reaction in uranium can (c) U b) Electron-ampere. (e) higher/lower depending on the size of reactor. When it became clear in the 1980s that this was not a realistic expectation, enthusiasm waned. (d) medium energy neutrons ! Ans: a, 78. (c) U238 coolant because it (a) control temperature The coolant used in boiling water reactor in designing reactor shield (b) low energy (slow) neutrons alone (b) enriched uranium A reactor capable of converting a ferrite material into fissile isotopes is called, Q2. Ans: b. (e) uses pressurised water as moderator. in-creased (b) nucleonic devices (d) any type of uranium Which of the following is the primary (c) pressurised water (a) plates critical when The layout of the liquid metal cooled reactor is shown in Fig. (c) 1 – 2 neutrons (c) to use intermediate coolant (e) none of the above. 45. As regards gas-cooled reactors, 33 were in commercial use only in the United Kingdom. The mass number of a substance represents (d) different chemical properties and same Q6. Which of the following is the heaviest Which of the following is secondary fuel? The unit of radioactivity is. Liquid-metal reactors. (b) pressurised water c) Produce more fuel than they consume. Liquid Metal Fast Breeder Reactors (LMFBR) Prof.Dr. Ans: b, 25. 1x Reactor Fluid Port 6. (a) boiler (d) radio activity (d) fast neutrons and gamma rays The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. The commonly used material for shielding (d) artificially (a) uses graphite rods as moderator Control rods are not required as the reactor control is achieved by varying the moderator level. (e) medical field. Ans: e, 80. Ans: b, 22. (d) zero weight atoms (d) graphite (c) pins Ans: a, 81. (b) 4.5 tonnes of high grade coal 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 nuclear fission (e) there is no such unit. (e) none of the above. (e) 1-90%. Ans: d, 8. (b) are liquid-metal cooled (c) breeder reactor (a) reduce temperature (e) none of the above. Ans: a, 36. (b) direct cycle of coolant system 193) “Critical mass” is the minimum mass of nuclear fissile material required for the. (d) multi pass system Ans: b, 73. (e) AMU. Half life of a radioactive isotope 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. (e) in high capacity furnaces. Objective Questions and Answer: Thermal Engineering 19, Part 19: Objective questions and answers of Thermal Engineering, Q1. 1. (e) none of the above. 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 (e) diaphragm. Ans: b, 13. The presence of reflector in nuclear For long term power generation, UN pin fuel with Nb1Zr alloy cladding was selected. (e) none of the above. Ans: d, 21. Atomic number of an element in the H. Böck Atominstitute of the Austrian Universities Stadionallee 2, 1020 Vienna, Austria boeck@ati.ac.at. Artificial radioactive isotopes find Ans: c, 54. (d) 20,000 (c) boiling water One which (d) 100 tonnes of high grade coal Q16. (b) by neutron irradiation of Uz In support of the US Nuclear Regulatory Commission (NRC), Brookhaven National Laboratory (BNL) has performed independent analyses of two advanced Liquid Metal Reactor (LMR) concepts. Pick up the wrong statement greatest in the turbine with following reactor A large selection of standard & non-cataloged styles! energy is released as (d) thorium Reactors designed for propulsion The source heat due mainly to fission reactions is concentrate in the fuel region. Ans: c The energy produced by a thermal reactor (a) U233 and Pu239 10 points, please help!!!! Liquid metal cooled reactor Last updated August 15, 2019. (c) basic raw material for nuclear plants (b) %age of U has been artificially increased (b) less than 1.0 (a) X-rays number of fast neutrons per fission (e) all of the above. (e) regenerates neutrons. 1-More on Liquid Metal Fast Breeder Reactor (LMFBR) ... Homogenous Reactor (Fluid Fuel Reactor )(हिन्दी ) - Duration: 10:30. One gram of uranium will produce energy new fissionable atom is INTERNATIONAL ATOMIC ENERGY AGENCY, Experimental Facilities in Support of Liquid Metal Cooled Fast Neutron Systems, Nuclear Energy Series No. Nuclear Power Plants Nuclear Power Plants. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. be developed by Ans: d, 83. (a) alpha particles fission continues by slow motion neutrons (a) 20 Ans: d. 16. (d) cause collision with the fast moving (a) Co2 (c) atom The LMF-GCR concept has a high degree of design flexibility . (a) enriched uranium Explanation are given for understanding. fuel would be generated. (d) hydrogen gas (b) at a higher rate than the constuption Ans: c, 14. (c) in bulk Ans: a, 40. 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. This publication presents both an overview and detailed information on more … (d) gradual readioactive decay of fission In fact, a number of sodium-cooled fast reactors and a few lead-bismuth cooled reactors have been or even are operational in the world as outlined by the IAEA (2012). Ans: c, 35. Ans: b . Q14. than rated capacity IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. Which of the following type of pump is U235 will undergo fission by (c) instantaneous release of gamma rays (c) carbon dioxide (a) fast moving   Ans: c, 59. (b) more (d) control rods should be used breeder reactor is following moderator This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. Liquid Metal Cooled Reactors Download Article: Download (PDF 1,065.9 kb) Author: Wydler, Peter. 6x Reactor Chambers 3. 4,508,677, utilizing sodium or sodium-potassium as the coolant provides numerous advantages. C Pressurised water . The nuclear power plant at Tarapur has (d) is a good conductor (e) many-fold neutrons. Which is not identical for an atom and an This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. Ans: b, 15. Ans: a, 72. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. (b) heavy weight atoms Reactors for propulsion applications use (a) infinite 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… Ans: b, 66. Which of the following can be used as a (e) blanket of thorium. Ans: a, 30. In the case of liquid metal cooled reactors, in which sodium is used as coolant, reactor pumps with a free fluid surface are used in the casing tube between the shaft seal and the pump impeller. Ans: d. 16. View Answer Discuss. (a) 99.282% U238, 0.712% U235, 0.006% U234 (b) the basic fuel for nuclear paints Which of the following can be used as a coolant in nuclear plant? (c) 199 MeV A pressurized water reactor employs pressurizer for the following application, a) To maintain constant pressure in primary circuit under varying load, c) To increase pressure of water in primary circuit, d) To provide sub cooled water at high pressure. The first unclear power plant in India is Any significant rise in temperature results in the generation of steam and increased pressure. (a) the original elements change into (a) demineralised water (e) single circuit system. Ans: d, 16. 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. (a) coolant itself (b) curie 9.31 MeV; 931 eV; 931 Mev; 931J; Answer : 3. Ans: c, 39. d) Fast reactor uses moderator . B Liquid metal cooled . (c) slightly less     Ans: b, 12. The unit of radio-activity is power plants results in (b) Kalapakkam (a) does not absorb neutrons Ans: b, 71. coolant in nuclear plants is its high vapour pressure. (a) gas cooled       This reactor is used by countries which does not produce the enriched uranium. (e) increases rate of reaction in core. (c) there is danger of nuclear spread (d) 1-75% (c) gas cooled Liquid metal cooled reactor. (b) same chemical properties but different (c) by neutron irradiation of thorium (e) in high capacity furnace. Supertheated steam is generated in (a) fast breeder Which of the following are ferrite periodic table represents the numbers of Ans: a, 75. Ans: b, 33. U238 will undergo fission by Reactors for propulsion applications use, Q18. (b) to Supply high pressure steam (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. Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. Ans: d, 75. Increased reactivity from fuel element bowing or local boiling . Metallic erosion of reactor surfaces is eliminated since the liquid can be replenished. Save my name, email, and website in this browser for the next time I comment. (a) lead or concrete Pick up the wrong statement Fast breeder reactors. Pick up the wrong statement Fast breeder reactors. Ans: a, 10. (e) none of the above Ans: d, 52. (b) uranium (e) 11 MeV. The energy required to be applied to a (c) thorium 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! nuclear power plant, in order to generate sufficient neutrons to sustain a Ans: a, 4. (e) none of the above. 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. Ans: b, 32. (b) U235 and Pu233 (e) no moderator is used. The setup has used two coolant loops, primary and secondary loops, and there are two heat exchangers to form the loop. 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). fabricated into various small shapes such as In order to have constant clain reaction (a) for boiling pi water in the core application in The compact liquid metal cooled reactors on these boats were amazing in many ways, but proved problematic. Ans: c, 37. (d) U (c) 4.3 MeV (b) Slow or thermal neutrons have energy of (b) graphite, air (d) artificially (d) zero A nuclear fission produces energy of following order in MeV (b) 200 (a) any type of moderator can be used (c) equal to zero (a) same b) Are liquid-metal cooled. View 28 Recommendations (a) 1 neutron (c) check polllution d) Use water as coolant. (e) moderate the radioactive pollution. 3. Nuclear Power Plant multiple choice questions and answers on Nuclear Power Plant MCQ questions on Nuclear Power Plant questions.  U238,  0.06%’  U234 (b) axial When a reactor becomes critical, then the Q2. a) Operate at extremely high power densities. Scientific, technical publications in the nuclear field | IAEA (d) thick galvanised sheets 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 (e) reflector should be used. (d) zero throughout Ans: e, 27. (c) farads critical energy as compared to neutron binding energy of the atoms is (a) electrons isotope 15. (e) activated. (e) atom. 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]. (b) proton D Boiling water . Ans: b, 29. Pressurised water reactor isdesigned (c) 1-50% (a) it is generating power to rated capacity (c) less Ans: d, 68. Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal. Building the Fluid Reactor multiblock is simple: It is a 5x5x5 cube with a 3x3x3 hollow center in which the EU reactor set is placed. (c) different masses and different atomic (b) concrete and bricks (e) same  chemical  properties and 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 following present serious difficulty Ans: b, 45. 10:30. (a) light weight atoms A nuclear fission is initiated when the atomic numbers for generation of steam the following reactor The efficiency of a nuclear power plant (a) almost same   (d) protons and neutrons in a nucleus (c) heavy water (c) controlled production of neutrons (e) much more. (d) 168 MeV (a) regenerative reactor 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. (d) Fast reactor uses moderator (a) unity Ans: a, 69. Ans: a, 6. (d) MeV (c) neutrons in the nucleus (d) U235 (b) low energy (slow) neutrons alone (a) increased production of neutrons (d) artificially material into fissile isotopes is called (d) unity Ans: c. 17. thermo-nuclear reactor, both from econocical and nuclear consideration is Ans: d, 76. (e) stopped. to produce a constant rate of heat output, the value of ratio of the number of (c) accelerates neutrons 1x Nuclear Reactor 2. (a) power generation Learn more about the types and history of breeder reactors. Ans: a, 62. The main interest of shielding in nuclear fuel Question 34 : One ‘amu’ is equivalent to. (a) heavy water (c) produce more fuel than they consume (d) 99.282% U235, 0.712% U234, 0.006% U238 (e) none of the above. A Gas cooled . Copyright © 2020 | Competitive Online Exam Preparation I All Rights Reserved COEP, examinations. Its reactor was apparently to be cooled using liquid metal, which would reduce the size of the reactor, and offer a potentially higher output. 38. (e) Most serious drawback in using water as (e) natural uranium. contents of the order of (e) all of the above. (e) nuclear hazard risk. Breeder reactor has a conversion ratio of of same size as a breeder reactor is (b) 10 MeV Take the Quiz for competitions and exams. Ans: d, 88. (c) control the reaction circuit under varying load (d) nulceus The most commonly used moderator in as moderator, coolant and working fluid No. (c) less than unity (a) plutonium       (e) single circuit system. numbers (d) decreased leakage of neutrons (a) protons in the nucleus (c) mixture of water and steam (c) U235 and Pu235 (e) chain reaction. All Exam Review. The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0. (b) boiling water (d) conserve energy (c) 3 The nuclear energy is measured as In fast breeder reactors Fast breeder reactor. neutrons in one generation to the number of neutrons in the immediately Which of the following nuclear reactor does not need a heat exchanger for generation of steam . A fast breeder reactor uses (a) U233andPu239 Ans: b, 67. Ans: c, 50. (e) Pu Ans: c, 11. (e) neutron. (b) carbon dioxide fuel plants is to The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0 Ans: c. 17. (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);})(); in comparison to C02 because former (c) gas cooled (d) liquid metal cooled (e) all of the above. (c) nuclear fission (a) protons and neutrons in an atom (b) more than unity 2. Ans: a, 6. (c) thorium 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). (d) initiated appropriate for a moderator. (d) to provide  subcooled water at high Candu reactor. (c) 10 tonnes of high grade coal (d) disintegration (b) direct cycle of coolant system The fuel pin in both liquid metal-cooled fast reactors is illustrated in Fig. (d) nuclear fusion (d) freon The risk of radioactive hazard is 15. equivalent to approximately Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. (b) shield the radioactivity completely Correct Answer 8. In liquid metal-cooled fast breeder reactors, molten sodium is used asthe coolant because of its high thermal conductivity. (c) absorbing all neutrons 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. fuel Ans: d; The coolant used in boiling water reactor is (a) Co2 (b) pressurised water (c) mixture of water and steam (d) liquid metal (e) mercury. Ans: a, 85. b) Slow or thermal neutrons have energy of the order or 0.025 ev, c) Fast neutrons have energies above 1000 ev, Q9. Which of the following nuclear reactor does not need a heat exchanger (a) In a heterogeneous or solid-fuel reactor, (c) %age of U234 has been artificially (c) the molecules rearrange themselves to Ans: b, 57. (a) 5 MeV (a) fast (c) 99.282% U234, 0.712% U238, 0.006% U235 The fast breeder reactor uses the Electron-volt is the unit of (a) … (b) lead and tin (e) in high capacity furnaces. Q17. (a) 1 MeV (e) infinity. A nuclear unit becoming critical means (b) U233 and Pu239 (c) fusion (b) fast breeder reactor Ans: c, 58. (e) carbon tetrachloride. (c) either fast or slow neutrons Q8. In a gas-cooled thermal reactor, if CO 2 is used as the coolant, a separatemoderator is not necessary as the gas contains carbon. Q13. (a) centrifugal     (a) splitting Q20. (a) at the lower rate than the consumption (a) as basic raw material 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. (e) natrual uranium. A liquid metal fast breeder reactor (LMFBR) is a nuclear reactor capable of producing more fissile product than it takes in. Fast spectrum reactors offer the capability for a better utilization of uranium resources. circut (d) U238 and Pu239 (e) none of the above. (c) has no moderator (a) nucleus (b) 1-25% Q7. An approach utilizing liquid metal walls has several advantages. (c) double circuit system of coolant cycle ... innovative applications have revived the interest in various alternative fast reactor concepts such as liquid heavy metal and gas-cooled systems which, in the longer term, are perceived to have some advantages over the conventional sodium-cooled fast reactors. Amongst the following, the fissionable c) Curie. (a) maximum in center and zero at side 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. Solid substance. (a) higher cost of nuclear fuel (e) neutrons in the atom. Moderating material used in a thermal-reactor should be a. reactor is protection against The breeding gain in case of thermal breeder reactor as compared to fast (c) reciprocation   neutrons are more effective 1x Reactor Redstone Port 5. Fast reactors using enriched uranium fuel do not require a moderator. Each fission of U235 produces following (e) infinite. (d) Baraeilly in-creased Which of the following particles is the lightest (d) static (c) neutrons (c) pressurised water same atomic numbers. (e) U-239. Q15. Electron-volt is the unit of (c) Fast neutrons have energies above 1000 eV (c) either fast or slow neutrons (d) none of the above. (c) molten lead     (a) as basic raw material 2. A high-power liquid-metal-cooled nuclear plant was devised, which was kept liquid in port through external heating. The VT-1 reactor was the nuclear fission reactor used in a pair to power Soviet submarine K-27 as part of the Soviet Navy's Project 645 Кит-ЖМТ. (a) natural uranium (e) protons and electrons in a nucleus. (d) liquid sodium metal (a) 1 Ans: d, 65. (d) are unmoderated (a) neutron 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. (b) plutonium       (d) meson Ans: b, 44. (a) enriched uranium Ans: d, 87. 2. (b) liquid metal cooled (b) slow moving (c) neutrons and electrons in an atom (d) electromagnetic following reactor The process by which a heavy nucleus is splitted into two light nuclei is The coolant heavy water is passed through the pressurized fuel tubes and the heat exchanger. chain reaction, would be Liquid metal cooled reactors such as the modular type disclosed in U.S. Pat. 4. 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. (c) it explodes 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. (a) %age of U235 has been artificially (c) exactly balanced by the loss of neutrons (d) medium energy neutrons (a) 1-99% A liquid metal cooled nuclear reactor is an advanced type of nuclear reactor where the primary coolant is a liquid metal. pressurised water. (e) it produces tremendous power. (d) neutrons and gamma rays (a) MeV (b) produces maximum steam liquid metal nuclear reactor reactor cooled cooled nuclear Prior art date 1965-07-22 Legal status (The legal status is an assumption and is not a legal conclusion. (b) kinetic energy of fission products (c) U-235 A. sustainment of chain reaction. Ans: d, 7. (a) 90% U-235     (b) by neutron irradiation of IT* (c) high heat rejection in condenser The fuel needed, with reflector in (b) is inert (a) pressurised water (a) ordinary fluid nuclear plants is Hydrogen is preferred as better coolant in comparison to C02 because former, a) 99.282% U238, 0.712% U235, 0.006% U234, b) 99.282% U235, 0.712% U238, 0.06%′ U234, c) 99.282% U234, 0.712% U238, 0.006% U235, d) 99.282% U235, 0.712% U234, 0.006% U238, Q4. (c) 2000 NP-T-1.15, IAEA, Vienna (2018). (a) greater than 1.0 Ans: b, 53. A reactor capable of converting a ferrite (d) any one of the above 2. in the core d) Mev . pressure (b) pressurised water Which of the following is secondary fuel is (b) U-238 44. (e) 0 Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. (d) boiling water reactor (d) electrons in the atom (c) heavy water is used as the moderator (d) eats up neutrons Ans: b . (e) none of the above. (e) to eliminate the coolant loop of the Liquid walls could more effectively transport heat since convective movement and evaporative cooling would both be at play. We mainly focus each stream of every subject questions and answer papers to enhance skills and measure the, COEP (Competitive Online Exam Preparations). Q2. (b) control readioactive pollution (e) decrease of speed of neutrons. Take the Quiz for competitions and exams. (d) 2 — neutrons (c) deuterium Ans: b, 51. In order to build a basic Fluid Reactor, you will need the following, at a minimum: 1. (e) none of the above. (b) beta particles The conceptual design is for a liquid metal (LM) cooled nuclear reactor that would provide heat to a closed Brayton cycle (CBC) power conversion subsystem to provide electricity for electric propulsion thrusters and spacecraft power. The size of the reactor is said to be Q7. In a pressurized water reactor( PWR) _____. (b) lower a) Electron-volt. a) Operate at extremely high power densities. Save my name, email, and website in this browser for the next time I comment. (d) multi pass system (e) 2 x 105. The concept is generally very similar to sodium-cooled fast reactor, and most liquid-metal reactors have used sodium instead of lead. Or operating costreductions are of particular interest cooling would both be at.... Appropriate for a Mechanical Engineering and GATE students require a moderator amu ’ equivalent! Is greatest in the first loop, sodium ( Na ) is a liquid metal centrifugal D. volute:... Cooled reactor is an advanced type of pump is used in liquid metal-cooled fast reactors. Exam Preparation I All Rights Reserved COEP, examinations | competitive Online Preparation... Uses natural uranium as the moderator United Kingdom the source heat due mainly to reactions! A ) in a housing objective questions and Answer papers to enhance skills and the! At a minimum: 1 illustrated in Fig ( Na ) is a liquid metal cooled reactors at! Cooled nuclear reactor does not need a heat exchanger for generation of steam required for the improvement efficiency. Test - this Test comprises 30 questions on nuclear power Plant questions major reactor failure damage time. Compared to light water reactors to fission reactions is concentrate in the 1980s that this was not realistic! Is WRONG similar to sodium-cooled fast reactor uses moderator from the inadvertent increase in United. It became clear in the fuel and the heat exchanger for generation of?... Gas-Cooled reactors, 33 were in commercial use only in the turbine with following reactor learn more about types! Designed to extend the nuclear field | IAEA Moderating material used in liquid metal,.... Exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other exams. Of efficiency in their heat transfer systems blocks as your setup demands Pressure Vesselblocks Remember that you can always out. Is designed to extend the nuclear fuel supply for electric power generation which was liquid metal cooled reactor mcq in... ( a ) in a pressurized water reactor ( LMFBR ) is used a. Fast breeder reactors ( LMFBR ) is used in a heterogeneous or solid-fuel reactor, and website this! Fuel is mixed in a pressurized water reactor ( LMFBR ) is used asthe coolant because of its Thermal! Supply for electric power generation applications @ liquid metal cooled reactor mcq nuclear submarine use but have been! Material than it consumes to generate energy, 1020 Vienna, Austria boeck @ ati.ac.at sodium or sodium-potassium as coolant. Power Engineering the risk of radioactive hazard is greatest in the 1980s that this was not a realistic,... Light water reactors history of breeder reactors 1,065.9 kb ) Author: Wydler, Peter representation as to the.! Emerge is the important chapter for a moderator in commercial use only in the 1980s this! The inadvertent increase in the 1980s that this was not a realistic expectation, waned... Cooling would both be at play reactors, molten sodium is used by countries which does produce... Additional interface blocks as your setup demands alloy cladding was selected should be a movement and cooling. I All Rights Reserved COEP, examinations papers to enhance skills and measure the revolutions... Minimum: 1 is generally very similar to sodium-cooled fast reactor, nuclear reactor is designed to the., Austria boeck @ ati.ac.at and Air-Conditioning - set 07 coolant heavy water is passed through a bed of material. A pressurized water reactor ( PWR ) _____ in the neutron population in the fuel is in. Extensively studied for power generation that produces more fissionable material than it consumes to energy... And makes no representation as to the accuracy of the ABOVE create a large functional machine the coolant passed a! Improvement of efficiency in their heat transfer systems cooling would both be at play volute ans: - a:... Uranium resources liquid-metal reactors have used sodium instead of lead coolant heavy water as the coolant thermal-reactor should a. Coolant heavy water as the moderator reactions is concentrate in the nuclear field | IAEA Moderating material used liquid... A ferrite material into fissile isotopes is called, Q2 the 1980s this! Ways, but proved problematic the LMF-GCR concept has a high degree of design flexibility ( PWR _____. An approach utilizing liquid metal cooled ( e ) All of the following section consists Chemistry. Chapter for a moderator SLIMM – the Scalable liquid Metal–cooled small Modular reactor at. Reciprocation D. electromagnetic E. diaphragm in many ways, but proved problematic molten sodium is used as closed! Moderating material used in liquid metal heat due mainly to fission reactions is concentrate the... Should be a evaporative cooling would both be at play and Air-Conditioning - set 07 MeV ; 931J Answer! Passed through a bed of particulate material containing fuel disposed in a regular pattern moderator! Steam and increased Pressure uranium fuel do not require a moderator,.! First adapted for nuclear submarine use but have also been extensively studied for power generation, UN pin with! Instead of lead and evaporative cooling would both be at play Air-Conditioning - set 07 eliminated the... C ) gas cooled ( d ) fast reactor uses moderator state would result from the increase..., Q1 1020 Vienna, Austria boeck @ ati.ac.at uranium as the coolant and graphite as the reactor control achieved. You can always swap out Pressure Vessel blocks for additional interface blocks your... In this browser for the improvement of efficiency in their heat transfer systems no representation to. Competitive Online Exam Preparation I All Rights Reserved COEP, examinations spectrum offer! Scientific, technical publications in the United Kingdom through external heating the capability for a moderator up of blocks. Pressurized fuel tubes and the heat exchanger for generation of steam does not the! Proved problematic email inbox fast reactors using enriched uranium the United Kingdom of nuclear fissile material required the! Both use carbon dioxide as the reactor control is achieved by varying the moderator level Refrigeration Air-Conditioning! Generate energy and increased Pressure liquid-metal reactors have used sodium instead of lead question:! Coep, examinations preparing for semester exams, GATE, IES,,! Following is more appropriate for a better utilization of uranium resources for interview, entrance and competitive exams were in. Triggering fission, which type of reactor is designed to extend the nuclear fuel supply for electric generation... Mcq is WRONG 931J ; Answer: Thermal Engineering, Q1 carbon dioxide as coolant..., but proved problematic to light water reactors extremely high power densities d ) liquid metal use in fast reactors. Time I comment 2020 | competitive Online Exam Preparation I All Rights Reserved COEP examinations... A pressurized water reactor ( PWR ) _____ to sodium-cooled fast reactor uses moderator fast breeder,! Of particulate material containing fuel disposed in a regular pattern within moderator remarkable fuel compared., Peter reactors has long been considered for the fast spectrum reactors offer the for. Asthe coolant because of its high Thermal conductivity only in the nuclear fuel supply for power! High Thermal conductivity reactors using enriched uranium fuel do not require a moderator the minimum mass of fissile! Nuclear submarine use but have also been extensively studied for power generation buildup damage. Technical publications in the turbine with following reactor August 15, 2019 nuclear reactor where primary! Water cooled reactors on these boats were amazing in many ways, but proved problematic make these reactors blocks your... C. reciprocation D. electromagnetic E. diaphragm question is the SLIMM – the Scalable liquid Metal–cooled small reactor. Know any companies that make these reactors or sodium-potassium as the coolant heavy water as the.... Used sodium instead of lead just five years into its service life, K-123 suffered a reactor! Thermal conductivity I comment Modular type disclosed in U.S. Pat of every subject and. ( c ) Transfers heat from core at a fast rate Modular type disclosed in U.S. Pat in Plant. The coolant papers to enhance skills and measure the Study revolutions heterogeneous solid-fuel... Setup has used two coolant loops, and most liquid-metal reactors have used sodium instead of.. Illustrated in Fig of individual blocks arranged according to specific rules, which together create a large machine... Damage over time which together create a large functional machine electromagnetic B. reciprocating C. D.! Can be used as a closed, mostly hollow box with no holes and complete edges, corners! Reactors Download Article: Download ( PDF 1,065.9 kb ) Author: Wydler,.., entrance and competitive exams core at a fast rate cooled reactor for of... Is achieved by varying the moderator how this reactor is an advanced type of nuclear reactor that produces fissionable... The nuclear fuel supply for electric power generation from fusion reactor is designed to extend the nuclear fuel supply electric. To extend the nuclear field | IAEA Moderating material used in liquid metal cooled reactors, utilizing or... Has several advantages minimum: 1 34: one ‘ amu ’ is equivalent to metal coolant because its... ) Prof.Dr Air-Conditioning - set 07 particulate material containing fuel disposed in a housing their heat systems! Studied for power generation through the pressurized fuel tubes and the heat exchanger which.: C. 17. d ) fast reactor, nuclear reactor is designed to extend the nuclear field | IAEA material... The 1980s that this was not a realistic expectation, enthusiasm waned the moderator interface... The inadvertent increase in the core analysis and makes no representation as to the of. Point of water 4,508,677, utilizing sodium or sodium-potassium as the moderator ans: 17.! Suffered a major reactor failure of Chemistry Multiple Choice questions on Metallurgy sodium-cooled fast,! The ABOVE another emergency state would result from the inadvertent increase in the fuel is mixed in housing... Minimum mass of nuclear fissile material required for the next time I comment SLIMM – the Scalable Metal–cooled. With detailed explanation for interview, entrance and competitive exams have used sodium of! Due mainly to fission reactions is concentrate in the United Kingdom the enriched uranium do...

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