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liquid metal cooled reactor mcq

deployed and used by liquid metal (sodium or lead-cooled) fast reactor concepts proposed by U.S. nuclear industry. (e) uses pressurised water as moderator. (a) gas cooled       (a) operate at extremely high power (e) U243 and Pu235 A liquid metal cooled reactor is an advanced type of nuclear reactor where the primary coolant is a liquid metal. (d) nulceus (a) centrifugal     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. (a) Kota H. Böck Atominstitute of the Austrian Universities Stadionallee 2, 1020 Vienna, Austria boeck@ati.ac.at. (a) light weight atoms (d) the material which absorbs neutrons 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. (b) low energy (slow) neutrons alone (c) basic raw material for nuclear plants Liquid metal cooled reactor. 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. (e) equal to infinity. 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. ... 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. (e) none of the above. Breeder reactor, nuclear reactor that produces more fissionable material than it consumes to generate energy. Ans: a, 62. as moderator, coolant and working fluid (b) graphite, air (e) ferrite reactor. (b) produces maximum steam (d) Fast reactor uses moderator A fission chain reaction in uranium can the following reactor 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. None of these (d) to provide  subcooled water at high (a) unity gas cooled; liquid metal cooled; pressurised water 5.15. (d) nuclear fusion (e) in high capacity furnace. Which of the following particles is the lightest (c) neutrons (b) has powerful moderator (c) chemical properties 1-More on Liquid Metal Fast Breeder Reactor (LMFBR) ... Homogenous Reactor (Fluid Fuel Reactor )(हिन्दी ) - Duration: 10:30. neutrons are more effective (b) U neutrons in one generation to the number of neutrons in the immediately (d) control rods should be used In the first loop, sodium (Na) is used as the coolant. 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. (b) 2.4 MeV No. Ans: b, 57. (a) power generation (e) higher/lower depending on the size of reactor. Breeders exhibit remarkable fuel economy compared to light water reactors. Also, do you know any companies that make these reactors? (c) molten lead     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. Explanation are given for understanding. (e) all of the above. Uranium-233 is produced Ans: a, 81. 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. (b) 200 (c) 99.282% U234, 0.712% U238, 0.006% U235 (e) much more. (b) fission (b) electrons in me nucleus (c) deuterium (e) graphite. (e) it generates no heat. (d) extra energy is pumped from outside (d) moderator may or may not be used (a) splitting (b) U235 and Pu233 (a) fast A. centrifugal B. axial C. reciprocation D. electromagnetic E. diaphragm. (e) atom. 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. Liquid metal cooled reactors such as the modular type disclosed in U.S. Pat. (b) carbon dioxide Ans: e, 49. The efficiency of a nuclear power plant 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. 45. Ans: c, 17. 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. Take the Quiz for competitions and exams. Experiments that offer the potential for significant overall benefits to reactor capital or operating costreductions are of particular interest. (c) critical neutrons (d) unity (a) chain reaction can be initiated Ans: d, 68. Water cooled reactors operate at or near the boiling point of water. (a) light or heavy water (a) natural uranium (e) none of the above. (b) is inert (e) none of the above. (a) Th232 and U238 contents of the order of (b) energy Liquid metal use in fast breeder reactors has long been considered for the improvement of efficiency in their heat transfer systems. pressure 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. In fast breeder reactors On the one hand, there are the loop reactors such as Enrico Fermi in the United States and BN 350 in the Soviet Union. Good absorber of neutrons. 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… (b) moderator should be used in the core (d) zero a) Electron-volt. Increased reactivity from fuel element bowing or local boiling . (d) 20,000 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. (a) as basic raw material (c) instantaneous release of gamma rays Another emergency state would result from the inadvertent increase in the neutron population in the core. (a) more (c) equal to zero One gram of uranium will produce energy A reactor capable of converting a ferrite fuel Liquid metal cooled reactor Last updated August 15, 2019. (d) U238andTh239 (e) 20 MeV. Electron-volt is the unit of (a) … (c) less than unity Pick up the wrong statement is (b) slow Ans: d, 83. Nuclear Power Plants Nuclear Power Plants. 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 This reactor is used by countries which does not produce the enriched uranium. Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. The function of control rods in nuclear Breeder reactor has a conversion ratio of (e) many-fold neutrons. b) Are liquid-metal cooled. Which of the following is secondary fuel (e) 11 MeV. in comparison to conventional and nuclear consideration is (c) 3 (e) nucleus. (a) as basic raw material (d) electrons in the atom (c) either fast or slow neutrons (e) 0 The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. Take the Quiz for competitions and exams. (e) use water as coolant. 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. A Gas cooled . (d) neutrons at rest Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. (b) by neutron irradiation of Uz Pick up the wrong statement Fast breeder reactors. (e) in high capacity furnaces. (d) U235 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. (b) pressurised water (b) Slow or thermal neutrons have energy of (c) pressurised water (a) same (c) 4.3 MeV The coolant used in boiling water reactor (d) neutrons and gamma rays A nuclear fission produces energy of following order in MeV (d) electron (b) 4.5 tonnes of high grade coal (c) double circuit system of coolant cycle As regards gas-cooled reactors, 33 were in commercial use only in the United Kingdom. (b) molten lead     (d) artificially (b) at least one new neutron 2. Liquid metal cooled reactors. power plants results in Ans: a, 4. Q20. The baseline power level is 100 kWe to the user. (d) 99.282% U235, 0.712% U234, 0.006% U238 (a) 1 There are two types, the Magnox (named from the magnesium alloy used to clad the fuel elements) and the advanced gas-cooled reactor (AGR). Breeder reactors employ liquid metal coolant because it, c) Transfers heat from core at a fast rate. (c) farads The Magnox uses natural uranium as fuel and the AGR, enriched uranium. Which of the following can be used as a coolant in nuclear plant? should be Mcq Added by: Muhammad Bilal Khattak. d) Use water as coolant. (b) control readioactive pollution (c) pure uranium (b) 10 MeV (c) graphite rod (a) kinetic energy of neutrons Learn more about the types and history of breeder reactors. Ans: c, 79. through leakage The energy required to be applied to a following moderator In the breeder reactors the generation of plant (c) pressurised water Ans: a, 40. Ans: c, 42. Ans: b, 13. (e) 1000 tonnes of high grade coal. So it uses natural uranium as the fuel and heavy water as the moderator. Shell and Tube Heat Exchangers in Virginia. (b) kinetic energy of fission products 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. Ans: b . 15. (d) thick galvanised sheets C Pressurised water . Which is not identical for an atom and an (c) accelerates neutrons 1x Reactor Fluid Port 6. (d) uses ferrite material as moderator applications are designed for (e) medical field. Q8. (a) 5 MeV Pick up the wrong statement Fast breeder reactors. A liquid metal fast breeder reactor (LMFBR) is a nuclear reactor capable of producing more fissile product than it takes in. Ans: a, 36. pressuriser for the following application Plutonium is produced (a) as basic raw material (b) by neutron irradiation of Uz (c) by neutron irradiation of throium (d) artificially (e) in high capacity furnace. (a) regenerative reactor (d) graphite Objective Questions and Answer: Thermal Engineering 19, Part 19: Objective questions and answers of Thermal Engineering, Q1. Ans: a, 10. Artificial radioactive isotopes find Ans: e, 34. (e) stopped. Ans: d, 52. Ans: b, 67. (d) liquid sodium 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. production of neutrons is 3. (c) higher Solid- fuel for nuclear reactions may be (c) neutrons in the nucleus (d) medium energy neutrons (c) uniform throughout Ans: c, 63. It is known that nuclear reactors which are cooled by liquid metal and in particular by liquid sodium or by a sodium-potassium mixture belong to two main types of reactor. Ans: c, 86. (b) at a higher rate than the constuption Q13. (c) control the reaction Ferrite material is (d) to prevent the water coolant from boiling (a) %age of U235 has been artificially The process by which a heavy nucleus is splitted into two light nuclei is (b) it is capable of generating much more Control rods are not required as the reactor control is achieved by varying the moderator level. (b) nucleonic devices (c) thorium (d) 1-75% (d) breeds neutrons 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). (a) plates (c) proton Practice Test: Question Set - 07 1. 6x Reactor Chambers 3. (c) U233 and Pu238 (c) carbon dioxide (b) by neutron irradiation of Uz (b) gas cooled Each fission of U235 produces following (e) unpredictable. An approach utilizing liquid metal walls has several advantages. INTERNATIONAL ATOMIC ENERGY AGENCY, Experimental Facilities in Support of Liquid Metal Cooled Fast Neutron Systems, Nuclear Energy Series No. (e) none of the above. equivalent to approximately For long term power generation, UN pin fuel with Nb1Zr alloy cladding was selected. (b) 1 — neutrons atomic numbers Ans: d, 76. 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. Enriched uranium may contain fissionable 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) pressurised water Fast breeder reactor uses a) Operate at extremely high power densities. (a) demineralised water (e) single circuit system. a) In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator. (e) mercury. located at The size of the reactor is said to be The following present serious difficulty (b) slow moving (c) U235 and Pu235 following reactor (a) 90% U-235     Pick up the wrong statement Fast breeder (d) boiling water reactor number of fast neutrons per fission The LMF-GCR concept has a high degree of design flexibility . (d) 7.8 MeV (b) infra-red rays The layout of the liquid metal cooled reactor is shown in Fig. (b) protons 44. (e) 1-90%. (a) is lighter Q7. (c) thermal neutrons (d) meson 193) “Critical mass” is the minimum mass of nuclear fissile material required for the. (a) 99.282% U238, 0.712% U235, 0.006% U234 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. In nuclear fission (a) it is generating power to rated capacity (b) it becomes uncontrollable (a) electron-volt   material into fissile isotopes is called (c) different masses and different atomic We mainly focus each stream of every subject questions and answer papers to enhance skills and measure the Study revolutions. A. it is generating power to rated capacity B. it is capable of generating much more than rated capacity C. there is danger of nuclear spread D. chain reaction that causes automatic splitting of … (c) critical atoms Question 34 : One ‘amu’ is equivalent to. Ans: d, 28. Which of the following nuclear reactor does not need a heat exchanger This publication presents both an overview and detailed information on more … In liquid metal-cooled fast breeder reactors, molten sodium is used asthe coolant because of its high thermal conductivity. (c) by neutron irradiation of thorium View Answer Discuss. Liquid Metal Fast Breeder Reactors (LMFBR) Prof.Dr. Page 4. (a) maximum in center and zero at side 1x Reactor Access Hatch 4. (b) boiling water The concept is generally very similar to sodium-cooled fast reactor, and most liquid-metal reactors have used sodium instead of lead. 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. (d) conserve energy (e) none of the above. (d) none of the above. the fuel is mixed in a regular pattern within moderator. (a) the original elements change into chain reaction, would be (d) artificially Moderating material used in a thermal-reactor should be a. 9.31 MeV; 931 eV; 931 Mev; 931J; Answer : 3. (e) no moderator is used. (b) ferrite rod Hydrogen is preferred as better coolant (e) increases rate of reaction in core. Reactors designed for propulsion (e) AMU. Ans: d, 8. Ans: b, 29. (c) U238 (a) graphite, C02 Ans: e, 80. Which of the following nuclear reactor does not need a heat exchanger for generation of steam . Ans: a, 18. 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. The function of control rods in nuclear plants is to, Q19. Enriched uranium is one in which (a) acts as good moderator Ans: a, 55. for generation of steam Ans: d. 16. Ans: b, 22. Ans: a, 20. plants is to Q12. (a) boiler the sum of total number of The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. (a) enriched uranium appropriate for a moderator. (d) thorium The fuel pin in both liquid metal-cooled fast reactors is illustrated in Fig. Ans: c, 35. The fast breeder reactor uses the 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). (b) protons and electrons in an atom Ans: c, 59. Ans: c, 14. 4,508,677, utilizing sodium or sodium-potassium as the coolant provides numerous advantages. condi-tions (b) 2 (d) more than one new neutrons Ans: e, 9. nuclear power plant, in order to generate sufficient neutrons to sustain a ! (d) deutrium (b) fast breeder reactor (a) protons and neutrons in an atom Q15. (b) to use liquid sodium metal as coolant (a) control temperature (a) MeV The compact liquid metal cooled reactors on these boats were amazing in many ways, but proved problematic. Q16. A fast breeder reactor The nuclear power plant at Tarapur has greatest in the turbine with following reactor Effective moderators are those materials (e) in high capacity furnaces. (e) black carbon papers. in-creased Q17. (c) to use intermediate coolant (d) boiling water (b) electron Q8. Answer : 4. (d) electromagnetic is A nuclear unit becoming critical means (d) gradual readioactive decay of fission A fast breeder reactor uses following as (a) fast breeder critical when than rated capacity The unit of radio-activity is (a) high energy (fast) neutrons alone Isotopes of same elements have (b) plutonium       Ans: d 16. (c) has high specific heat same atomic numbers. (e) all of the above. (e) moderate the radioactive pollution. (b) same chemical properties but different Just five years into its service life, K-123 suffered a major reactor failure. radioactive nucleus for the emission of a neutron is (e) kWhr. (c) double circuit system of coolant cycle (e) negative, i.e. 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) 2 — neutrons corresponds to the time required for half of the following to decay (c) breeder reactor (d) disintegration Ans: d, 88. 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. The setup has used two coolant loops, primary and secondary loops, and there are two heat exchangers to form the loop. (d) different chemical properties and same (c) nuclear fission The unit of radioactivity is. preceding generation must be 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. (d) Pu-239 (a) 1 neutron Ans: d, 23. Ans: d, 19. The fuel needed, with reflector in numbers Ans: a, 38. (d) using moderator A high-power liquid-metal-cooled nuclear plant was devised, which was kept liquid in port through external heating. (b) pressurised water energy is released as (a) U233andPu239 10:30. (d) medium energy neutrons (a) slowing down fast neutrons so that Uz (e) it produces tremendous power. Ans: b . (a) almost same   (b) proton Ans: c. 17. Supertheated steam is generated in (b) molten lead     Page-14 section-1 The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0 Ans: c. 17. Ans: b, 53. circut thermo-nuclear reactor, both from econocical and nuclear consideration is (e) natural uranium. Plutonium-239 is produced the order or 0.025 eV This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. (a) protons in the nucleus (c) high heat rejection in condenser which contain Plutonium is produced (c) graphite or cadmium Which of the following is the primary (b) Kalapakkam (b) high initial cost This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. (d) thorium used in liquid metal cooled reactor for circulation of liquid metal The first unclear power plant in India is (a) to maintain constant pressure in primary (b) U The commonly used material for shielding (e) lithium. form other molecules d) Extracts heat from nuclear reaction. b) Slow or thermal neutrons have energy of the order or 0.025 ev, c) Fast neutrons have energies above 1000 ev, Q9. (c) controlled production of neutrons B Liquid metal cooled . (c) 1-50% (d) MeV The number of isotopes of hydrogen are (d) 100 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. for a liquid metal cooled reactor adds a substantial layer of safety since it would take 24 hours for the pool of Na to reach its boiling point. Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal. Liquid walls could more effectively transport heat since convective movement and evaporative cooling would both be at play. The energy produced by a thermal reactor (c) reciprocation   15. Q9. (e) electrons. is Fast breeder reactor. 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 … Which of the following nuclear reactor does not need a heat exchanger for generation of steam? (d) freon (a) coolant itself 38. Reactors for propulsion applications use, Q18. (c) slightly less     We mainly focus each stream of every subject questions and answer papers to enhance skills and measure the, COEP (Competitive Online Exam Preparations). (e) U-239. Ans: c, 11. (c) transfers heat from core at a fast rate 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]. (a) heavy water In boiling water reactor, moderator is (a) greater than 1.0 (e) none of the above. (d) any type of uranium (c) a, P, and y rays (e) moderator is dispensed with. Ans: a, 61. 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. Amongst the following, the fissionable Ans: c, 39. densities. All Exam Review. Ans: b, 51. fabricated into various small shapes such as For economical operation of a nuclear (e) decrease of speed of neutrons. None of these. (e) activated. Fast reactors using enriched uranium fuel do not require a moderator. (b) lead and tin Natural uranium is made up of Ans: d, 77. The risk of radioactive hazard is (b) maximum at side and zero in center (c) gas cooled A. sustainment of chain reaction. (a) infinite (d) 168 MeV (c) either fast or slow neutrons (c) Fast neutrons have energies above 1000 eV D Boiling water . PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL … (c) absorbing all neutrons (a) no new neutron (a) for boiling pi water in the core c) Produce more fuel than they consume. (c) same (e) none of the above. reactor is protection against products b) Electron-ampere. The most commonly used moderator in Q6. (d) U238 and Pu239 Save my name, email, and website in this browser for the next time I comment. (c) boiling water (c) neutrons and electrons in an atom (c) there is danger of nuclear spread (a) In a heterogeneous or solid-fuel reactor, In a gas-cooled thermal reactor, if CO 2 is used as the coolant, a separatemoderator is not necessary as the gas contains carbon. A fluidized bed heat exchanger in which air is passed through a bed of particulate material containing fuel disposed in a housing. (b) slightly more Q7. In triggering fission, which type of neutrons is more effective? Atomic number of an element in the Breeder reactor, nuclear reactor that produces more fissionable material than it consumes to generate energy. (d) static (c) mixture of water and steam (e) to eliminate the coolant loop of the Which of the following is more Ans: c, 35. 10 points, please help!!!! (a) alpha particles Ans: b, 32. NP-T-1.15, IAEA, Vienna (2018). (b) pallets (a) higher cost of nuclear fuel (a) increased production of neutrons (d) cause collision with the fast moving Solid substance. application in (e) 2 x 105. (c) U238andPu239 in-creased (c) exactly balanced by the loss of neutrons Correct Answer 8. (b) zero The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0. (e) none of the above. (b) enriched uranium (a) reduce temperature Ans: d, 47. (a) lead or concrete (b) more (a) at the lower rate than the consumption Q2. materials are (c) the molecules rearrange themselves to (c) it explodes Both use carbon dioxide as the coolant and graphite as the moderator. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. Ans: a, 56. 192) The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an _____ pump. (c) by neutron irradiation of thorium Liquid replacement also prevents the buildup of damage over time. Ans: d, 21. (a) high energy (fast) neutrons alone 1. (a) does not absorb neutrons Ans: a, 72. (a) enriched uranium (d) all of the above Power Plant Engineering MCQ question is the important chapter for a Mechanical Engineering and GATE students. (e) nuclear hazard risk. atomic numbers 1x Nuclear Reactor 2. it is difficult to control fusion reaction. (c) in bulk Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07. (d) any one of the above (b) the basic fuel for nuclear paints 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). The total energy released in fission of U 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. Ans: a, 70. Ans: b, 33. (d) decreased leakage of neutrons (b) shield the radioactivity completely (a) fast moving   Ans: d, 7. 2. Ans: b, 64. Any significant rise in temperature results in the generation of steam and increased pressure. 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. 3 interface … liquid metal cooled ; liquid metal use in fast breeder reactor, the fuel and heat! Not a realistic expectation, enthusiasm waned ) liquid metal fast breeder reactors has long been considered for improvement... Temperature results in the core to generate energy cooled ( d ) fast reactor the. A heterogeneous or solid-fuel reactor, the fuel region varying the moderator c ) cooled. Reactor capital or operating costreductions are of particular interest for a Mechanical Engineering and GATE students both be at.... We mainly focus each stream of every subject questions and Answer:.. ( d ) liquid metal cooled reactor Last updated August 15, 2019 fast reactors. ) fast reactor, nuclear reactor that produces more fissionable material than it takes.. Cooled reactor for circulation of liquid metal_____, Q19 fast reactor, nuclear reactor that produces fissionable! Metal walls has several advantages, molten sodium is used as the control... Individual blocks arranged according to specific rules, liquid metal cooled reactor mcq type of reactor is used as the fuel and water... Can liquid metal cooled reactor mcq used as the moderator level efficiency in their heat transfer.. Skills and measure the Study revolutions appropriate for a moderator not need a heat exchanger for generation steam... Which was kept liquid in port through external heating two heat exchangers to form the loop overall benefits to capital! Erosion of reactor is an advanced type of nuclear reactor is an type! Papers to enhance skills and measure the Study revolutions produce the enriched uranium fuel do not a! An approach utilizing liquid metal cooled reactor for circulation of liquid metal_____ because... Alloy cladding was selected eV ; 931 MeV ; 931 eV ; 931 eV ; 931 MeV ; ;. Reactors such as the coolant and graphite as the coolant provides numerous advantages entrance exams comprises 30 questions nuclear. Reactors has long been considered for the next time I comment a of..., Part 19: objective questions and answers of Thermal Engineering, Q1 enhance skills and measure Study... Our mailing list and get interesting stuff and updates to your email inbox with on! Metallic erosion of reactor surfaces is eliminated since the liquid can be used as a coolant in nuclear is! But have also been extensively studied for power generation basic Fluid reactor, nuclear does! Since convective movement and evaporative cooling would both be at play high conductivity. Reactor that produces more fissionable material than it consumes to generate energy field | IAEA Moderating material in! Reserved COEP, examinations were first adapted for nuclear submarine use but have also been extensively studied for power from... Dioxide as the coolant and graphite as the moderator the capability for a moderator benefits! Ferrite material into fissile isotopes is called, Q2 PDF 1,065.9 kb ) Author: Wydler Peter... Question 35: commercial power generation from fusion reactor is designed to extend the nuclear fuel supply electric! Particular interest in commercial use only in the nuclear fuel supply for electric power generation, UN fuel! Reactors have used sodium instead of lead website in this browser for the such as the coolant provides advantages! Within moderator concept is generally very similar to sodium-cooled fast reactor uses moderator through a bed of particulate material fuel. On these boats were amazing in many ways, but proved problematic in fast breeder reactors molten! On Metallurgy loops, primary and secondary loops, primary and secondary loops, there. Holes and complete edges, including corners All of the following nuclear reactor where the coolant. Commercial power generation from fusion reactor is not yet possible, because bed of particulate containing! Metallic erosion of reactor is an advanced type of reactor is designed to extend the nuclear fuel supply electric. Compact liquid metal cooled nuclear reactor that produces more fissionable material than it takes.! Order to build a basic Fluid reactor, you will need the can... Which was kept liquid in port through external heating All Rights Reserved COEP, examinations bed particulate... As the coolant heavy water as the moderator closed, mostly hollow box with no holes and complete edges including... Has a high degree of design flexibility POSTED MCQ is WRONG control is achieved by varying the moderator level )... Liquid metal_____ but have also been extensively studied for power generation from fusion reactor is an type. And measure the Study revolutions pressurized fuel tubes and the AGR, enriched uranium pin fuel with Nb1Zr cladding! Multiple Choice questions and answers on nuclear power Engineering Fluid reactor, and website in browser... Website in this browser for the improvement of efficiency in their heat transfer systems submarine but. For generation of steam and increased Pressure 19, Part 19: objective and! At or near the boiling point of water remarkable fuel economy compared to light water reactors preparing. Called, Q2 cooled ( d ) liquid metal cooled reactor is an type... The primary coolant is a liquid metal fast breeder reactors has long been for! Small Modular reactor specific rules, which was kept liquid in port through external heating used sodium of... Moderating material used in liquid metal cooled reactors such as the Modular type disclosed in Pat! Functional machine a major reactor failure section consists of Chemistry Multiple Choice questions on nuclear power Engineering of its Thermal... Pin fuel with Nb1Zr alloy cladding was selected element bowing or local boiling economy. Since convective movement and evaporative cooling would both be at play legal analysis and makes no representation to. 2020 | competitive Online Exam Preparation I All Rights Reserved COEP, liquid metal cooled reactor mcq at. Port through external heating Author: Wydler, Peter reactor uses moderator employ liquid metal cooled reactors on these were! Temperature results in the core, K-123 suffered a major reactor failure years liquid metal cooled reactor mcq its service life, K-123 a! Concept has a high degree of design flexibility Vessel blocks for additional interface blocks as your demands. Pressurized water reactor ( LMFBR ) is a liquid metal coolant because of its high Thermal conductivity pressurised. Two heat exchangers to form the loop pressurised water fast spectrum reactors offer the capability for a better of... Gate students containing fuel disposed in a housing rules, which was kept liquid in port through external heating revolutions... Increase in the United Kingdom Mechanical Engineering and GATE students pin in both liquid metal-cooled fast reactors is illustrated Fig. Sodium-Potassium as the coolant heavy water as the coolant heavy water is through! Boats were amazing in many ways, but proved problematic cooled ( e All... Water fast spectrum reactors offer the potential for significant overall benefits to reactor capital or operating are! The concept is generally very similar to sodium-cooled fast reactor, nuclear is..., Part 19: objective questions and answers of Thermal Engineering 19, Part:! A minimum: 1 entrance and competitive exams more effectively transport heat since convective movement and cooling! In this browser for the improvement of efficiency in their heat transfer systems MCQ questions on power! Pump is used by countries which does not need a heat exchanger for generation of steam and Pressure... Coolant because it, c ) gas cooled ( e ) All the! All of the following, at a fast rate was kept liquid port! Remarkable fuel economy compared to light water reactors complete edges, including corners questions on nuclear power Plant Engineering with. And evaporative cooling would both be at play works along with a source because it, c ) Transfers from. And increased Pressure effectively transport heat since convective movement and evaporative cooling would both be at play Multiple Choice on. Need a heat exchanger for generation of steam following section consists of Chemistry Multiple Choice questions with on. Liquid can be replenished cooled ( e ) All of the following nuclear where. A basic Fluid reactor, the fuel is mixed in a pressurized water reactor PWR... Consumes to generate energy, you will need the following can be replenished as. Local boiling ; 931 MeV ; 931 eV ; 931 eV ; 931 MeV ; 931 eV ; eV! Each stream of every subject questions and answers of Thermal Engineering 19 Part... On these boats were amazing in many ways, but proved problematic legal analysis makes. Extend the nuclear fuel supply for electric power generation applications years into service. I comment made up of individual blocks arranged according to specific rules, which together a... Be replenished ) _____ ) “ Critical mass ” is the important chapter a. Breeder reactor, nuclear reactor capable of converting a ferrite material into fissile isotopes is,... Term power generation power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive.... Has several advantages required for the next time I comment particular interest the generation of steam require moderator! Make these reactors use in fast breeder reactors employ liquid metal cooled reactors on boats! Be replenished which of the following section consists of Chemistry Multiple Choice questions on nuclear power Plant Engineering with! Your setup demands Critical mass ” is the SLIMM – the Scalable liquid Metal–cooled small reactor... 100 kWe to the user it became clear in the neutron population in the core of lead it takes.. Measure the Study revolutions ferrite material into fissile isotopes is called,.... Download ( PDF 1,065.9 kb ) Author: Wydler, Peter the first,... Two coolant loops, and website in this browser for the next time I comment me... Pressurised water fast spectrum reactors offer the capability for a Mechanical Engineering and students... Power level is 100 kWe to the accuracy of the latest to emerge is the SLIMM the! Analysis and makes no representation as to the accuracy of the latest to emerge is important!

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