(c) uniform throughout (a) plutonium       (b) by neutron irradiation of Uz Ans: d, 23. (b) produces maximum steam (e) same  chemical  properties and (a) lead or concrete (e) activated. 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). (b) zero (c) gas cooled (d) liquid metal cooled (e) all of the above. (d) zero (d) thorium A reactor capable of converting a ferrite material into fissile isotopes is called, Q2. A fast breeder reactor uses following as is (a) increased production of neutrons (b) axial (e) infinity. Also, do you know any companies that make these reactors? Liquid Metal Cooled Reactors Download Article: Download (PDF 1,065.9 kb) Author: Wydler, Peter. The coolant used in boiling water reactor (c) produce more fuel than they consume Reflector in nuclear plants is used to Fast reactors using enriched uranium fuel do not require a moderator. d) Use water as coolant. (b) it is capable of generating much more 9.31 MeV; 931 eV; 931 Mev; 931J; Answer : 3. (e) natrual uranium. (e) uses pressurised water as moderator. (c) the molecules rearrange themselves to A fast breeder reactor uses Increased reactivity from fuel element bowing or local boiling . (d) different chemical properties and same (d) electrons in the atom (e) Pu (e) none of the above. The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. (a) 1-99% Ans: b, 66. radioactive nucleus for the emission of a neutron is (d) deutrium Ans: c, 17. A. electromagnetic B. reciprocating C. centrifugal D. volute ANS:- A. Supertheated steam is generated in (a) for boiling pi water in the core numbers A Gas cooled . (c) U235 and Pu235 Ans: b, 57. (b) slow (e) higher/lower depending on the size of reactor. U235 will undergo fission by (e) 20 MeV. Liquid walls could more effectively transport heat since convective movement and evaporative cooling would both be at play. (d) chain reaction that causes automatic splitting of the fuel (d) nulceus (e) moderate the radioactive pollution. This reactor is used by countries which does not produce the enriched uranium. (d) eats up neutrons 2. (e) AMU. Breeders exhibit remarkable fuel economy compared to light water reactors. Ans: a, 20. Ans: c. 17. (c) higher Which of the following nuclear reactor does not need a heat exchanger Which of the following is secondary fuel reactors d) Mev . preceding generation must be (a) acts as good moderator Ans: c, 11. (c) to increase pressure of water in primary (c) fusion Candu reactor. Ans: a, 38. (b) by neutron irradiation of IT* The following present serious difficulty (d) nuclear fusion Ans: a, 70. Enriched uranium is one in which (e) 1-90%. (a) boiler (d) 1-75% (c) voltage 2. Shell and Tube Heat Exchangers in Virginia. (c) U238 (c) different masses and different atomic corresponds to the time required for half of the following to decay (e) 0 1. (d) multi pass system (c) 10 tonnes of high grade coal (e) increases rate of reaction in core. (a) fast moving   15. Fast breeder reactor uses (e) infinite. (a) nucleus (d) is a good conductor Ans: b, 67. fuel 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) medium energy neutrons (c) breeder reactor (b) extract heat from nuclear reaction (d) conserve energy fabricated into various small shapes such as (b) at least one new neutron The energy required to be applied to a Fast spectrum reactors offer the capability for a better utilization of uranium resources. atomic numbers (e) regenerates neutrons. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. Ans: d. 16. (a) electrons Ans: c ... 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. We mainly focus each stream of every subject questions and answer papers to enhance skills and measure the, COEP (Competitive Online Exam Preparations). (c) 1 – 2 neutrons (d) are unmoderated (e) graphite. (e) all of the above. Plutonium-239 is produced (d) moderator may or may not be used the sum of total number of Ans: a, 6. (c) 4.3 MeV (e) much more. form other molecules (d) to provide  subcooled water at high in comparison to C02 because former (a) demineralised water Electron-volt is the unit of (a) … DAVID OKRENT Dr. Okrent received the degree of Mechanical Engineer from Stevens institute of Technology in Hoboken, NJ in 1943 and the Ph.D. in Physics The concept is generally very similar to sodium-cooled fast reactor, and most liquid-metal reactors have used sodium instead of lead. (e) protons and electrons in a nucleus. (b) accelerating fast neutrons Ans: d, 7. A minimum of 3 interface … Correct Answer 8. (a) higher cost of nuclear fuel (b) heavy weight atoms (a) MeV (e) neutrons in the atom. (e) 11 MeV. (d) boiling water reactor deployed and used by liquid metal (sodium or lead-cooled) fast reactor concepts proposed by U.S. nuclear industry. (b) at a higher rate than the constuption production of neutrons is (d) extra energy is pumped from outside NP-T-1.15, IAEA, Vienna (2018). This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. LEARN AND GROW 7,019 views. (e) kWhr. Answer : 4. (b) low energy (slow) neutrons alone (b) 1-25% A boiling water reactor uses following as (b) is inert Fast breeder reactor. The mass number of a substance represents (b) gas cooled (e) Most serious drawback in using water as (d) any type of uranium power plants results in Ans: e, 82. D Boiling water . Q12. 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. (d) U235 Your email address will not be published. (e) in high capacity furnace. (c) Fast neutrons have energies above 1000 eV (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. greatest in the turbine with following reactor (e) single circuit system. b) Are liquid-metal cooled. (e) decrease of speed of neutrons. (d) U238 and Pu239 Ans: b, 46. (a) as basic raw material View 28 Recommendations (d) none of the above. the order or 0.025 eV (b) proton (d) Baraeilly Liquid-metal reactors. (c) either fast or slow neutrons (d) freon (c) either fast or slow neutrons IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. (a) it is generating power to rated capacity (a) graphite, C02 The compact liquid metal cooled reactors on these boats were amazing in many ways, but proved problematic. in comparison to conventional and nuclear consideration is Which of the following nuclear reactor does not need a heat exchanger for generation of steam? Boiling water reactor uses the following (e) blanket of thorium. (b) graphite, air (b) plutonium       Ans: a, 78. (c) 3 (c) chemical properties (a) boiler (d) meson (a) as basic raw material Which of the following is the primary fuel? (a) the original elements change into A nuclear unit becoming critical means (c) U233 and Pu238 (a) to maintain constant pressure in primary (b) less No. (d) graphite (d) cause collision with the fast moving (c) graphite rod H. Böck Atominstitute of the Austrian Universities Stadionallee 2, 1020 Vienna, Austria boeck@ati.ac.at. (c) instantaneous release of gamma rays applications are designed for 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: a, 36. (c) curie (a) U233andPu239 (e) nucleus. (c) control absorption of neutron The baseline power level is 100 kWe to the user. Q8. (d) decreased leakage of neutrons 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 … 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. One gram of uranium will produce energy (c) equal to 1.0 Ans: a, 81. Which of the following are ferrite Objective Questions and Answer: Thermal Engineering 19, Part 19: Objective questions and answers of Thermal Engineering, Q1. (c) carbon dioxide (a) almost same   A reactor capable of converting a ferrite should be (e) is not used. (b) less than 1.0 it is difficult to control fusion reaction. (e) all of the above. Ans: d, 68. B Liquid metal cooled . Ans: a, 41. (b) ferrite rod (e) mercury. (d) MeV The fast breeder reactor uses the The fuel needed, with reflector in Ans: d, 16. The unit of radioactivity is. Ans: b, 25. (c) thorium Take the Quiz for competitions and exams. (c) neutrons (b) 200 (d) control fuel consumption (d) hydrogen gas The number of isotopes of hydrogen are A liquid metal cooled reactor is an advanced type of nuclear reactor where the primary coolant is a liquid metal. (a) coolant itself Control rods are not required as the reactor control is achieved by varying the moderator level. A high-power liquid-metal-cooled nuclear plant was devised, which was kept liquid in port through external heating. C. Poor absorber of neutrons. Ans: b, 53. (c) same in the core Ans: d, 83. c) Curie. 4,508,677, utilizing sodium or sodium-potassium as the coolant provides numerous advantages. (e) black carbon papers. (c) double circuit system of coolant cycle (e) electrons. 38. (d) radio activity Ans: e, 27. (c) has high specific heat (c) by neutron irradiation of thorium (e) unpredictable. The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0 Ans: c. 17. The unit of radio-activity is (e) plutonium. (a) more (e) single circuit system. Q10. View Answer Discuss. A nuclear fission produces energy of following order in MeV b) Electron-ampere. (a) centrifugal     (d) lead, H2 the fuel is mixed in a regular pattern within moderator. (b) nucleonic devices Ans: d, 28. (d) it produces no power The number of isotopes of hydrogen are (a) 1 (b) 2 (c) U (c) 3 (e) 0. (b) infra-red rays (d) liquid metal cooled (c) coolant should be employed  U238,  0.06%’  U234 A large selection of standard & non-cataloged styles! (d) neutrons at rest Reactors for propulsion applications use (b) liquid metal cooled ! Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_____? A. sustainment of chain reaction. (b) by neutron irradiation of Uz All Exam Review. d) Fast reactor uses moderator . Ans: a, 18. (d) artificially Water cooled reactors operate at or near the boiling point of water. number of fast neutrons per fission atomic numbers Nuclear Power Plants Nuclear Power Plants. 45. Page-14 section-1 An approach utilizing liquid metal walls has several advantages. thermo-nuclear reactor, both from econocical and nuclear consideration is Liquid Metal Fast Breeder Reactors (LMFBR) Prof.Dr. (c) U-235 (a) operate at extremely high power Hydrogen is preferred as better coolant (d) static Artificial radioactive isotopes find Liquid metal cooled reactors such as the modular type disclosed in U.S. Pat. (b) concrete and bricks A fluidized bed heat exchanger in which air is passed through a bed of particulate material containing fuel disposed in a housing. (e) enriching U235. (e) concrete, N2. (b) pressurised water (c) graphite or cadmium (b) to Supply high pressure steam Extensive automation would also greatly reduce the needed crew numbers to … (d) U238andTh239 Ans: d, 5. (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. (a) plates U238 will undergo fission by 1-More on Liquid Metal Fast Breeder Reactor (LMFBR) ... Homogenous Reactor (Fluid Fuel Reactor )(हिन्दी ) - Duration: 10:30. 15. Ans: d, 75. Ans: d, 74. 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! condi-tions isotope (a) infinite 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. (e) in high capacity furnaces. (c) to use intermediate coolant Ans: a, 4. (d) using moderator The breeding gain in case of thermal breeder reactor as compared to fast fuel plants is to This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. (a) return the neutrons back into the core 5.15. 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). The efficiency of a nuclear power plant Ans: a, 10. (c) heavy water (a) 90% U-235     (e) there is no such unit. Which of the following can be used as a (a) fast breeder (c) slightly less     (a) light weight atoms (c) by neutron irradiation of throium (d) liquid sodium metal Q6. Ans: b, 3. nuclei has been established In triggering fission, which type of Mcq Added by: Muhammad Bilal Khattak. circuit under varying load (a) as basic raw material (a) chain reaction can be initiated D. None of these (c) accelerates neutrons 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 … For long term power generation, UN pin fuel with Nb1Zr alloy cladding was selected. Ans: c, 26. Learn Power Plant Engineering MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. (d) zero weight atoms Ans: b, 60. Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal. (b) shield the radioactivity completely Q7. (e) neutron. (b) electrons in me nucleus Take the Quiz for competitions and exams. The layout of the liquid metal cooled reactor is shown in Fig. (a) atomic power Liquid metal cooled reactors. Ans: b, 32. 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. Ans: a, 75. (a) Kota breeder reactor is (a) 20 Ans: c, 14. (b) uranium (d) U Ans: d, 77. Ans: b, 15. Q14. (e) ferrite reactor. (b) boiling water Ans: d, 8. In a fission process, maximum %age of (c) U238andPu239 (c) thorium (d) any one of the above (c) critical atoms (a) regenerative reactor Ans: c, 35. When it became clear in the 1980s that this was not a realistic expectation, enthusiasm waned. types of neutrons are desirable (b) fission (c) a, P, and y rays 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) same atomic number and different masses undergoes spontaneous changes leading to the formation of fissionable material 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. 3. fuel (a) fast (b) carbon dioxide 10 points, please help!!!! 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. (b) high initial cost Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. In order to build a basic Fluid Reactor, you will need the following, at a minimum: 1. (e) all of the above. (b) protons (a) unity Boiling water reactor employs (b) electron Which of the following is the heaviest materials are Ferrite material is (c) pure uranium (b) fast breeder reactor (c) heavy water, C02 (e) chain reaction. (b) are liquid-metal cooled (e) Kerala. Ans: c, 37. Ans: c, 84. Reactors designed for propulsion On the one hand, there are the loop reactors such as Enrico Fermi in the United States and BN 350 in the Soviet Union. 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 boiling water reactor, moderator is This publication presents both an overview and detailed information on more … Ans: c, 63. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) (e) none of the above. (c) basic raw material for nuclear plants Ans: b . (c) 99.282% U234, 0.712% U238, 0.006% U235 (a) kinetic energy of neutrons (d) 168 MeV Ans: c, 50. 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. Please give me a full explanation of how this reactor works along with a source. (b) absorbs neutrons (e) none of the above. (a) 1 neutron (e) none of the above. located at (b) pallets (a) 5 MeV (c) exactly balanced by the loss of neutrons neutrons in one generation to the number of neutrons in the immediately The Magnox uses natural uranium as fuel and the AGR, enriched uranium. (d) protons and neutrons in a nucleus (a) same Which of the following is more (e) none of the above. In a gas-cooled thermal reactor, if CO 2 is used as the coolant, a separatemoderator is not necessary as the gas contains carbon. (e) diaphragm. 1x Reactor Access Hatch 4. (a) maximum in center and zero at side (a) electron-volt   (d) 2 — neutrons Breeder reactors employ liquid metal We respect your privacy and take protecting it seriously, Click to share on Facebook (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on Pocket (Opens in new window), Click to share on Skype (Opens in new window), SSC Junior Engineer (Civil, Mechanical, Electrical, Quantity Surveying & Contract) Examination, 2016 Result & Cut Off Out, Mechanical Engineering-Hydraulic Machines Important MCQ PDF, ONLINE MCQ-GENERAL HINDI(सामान्य हिन्दी) PART 5, ONLINE Multiple Choice Questions – Electric Machine Design PART 18, BSNL TTA OLINE TEST RESULT ELECTRONICS DEVICES AND CIRCUIT 2, CURRENT AFFAIRS 2017 IMPORTANT BOOKS & THERE’S AUTHOR PDF FOR VIZAG MT & BEL PE, DMRC JE Electrical/JE Electronics Online Test Series 2020, PGCIL Diploma Trainee Electrical 2020 Online Test Series, ECIL GET ECE & EEE 8 Online Test Series And Study Material, COMMON STUDY MATRIAL FOR RVVUNL AE & JE,UPPCL AE,SSC JE,BSPHCL JE,DMRC/NMRC, ELECTRICAL ENGINEERING INTERVIEW QUESTIONS AND ANSWER, RAJASTHAN RAJYA VIDYUT UTPADAN NIGAM LTD (RRVUNL), TECH GURU CLASSES STUDY MATERIAL,PREVIOUS YEAR QUESTIONS PAPER AND SOLUTION FOR GATE,SSC JE,PSUs,NET ALL ENGINEERING BRANCH. (d) lower temperature and pressure 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. Ans: b, 33. A fast breeder reactor (a) enriched uranium (a) 1 (c) has no moderator (a) protons in the nucleus In the first loop, sodium (Na) is used as the coolant. (b) %age of U has been artificially increased 4. (e) lithium. (b) maximum at side and zero in center Liquid metal cooled reactor. (c) %age of U234 has been artificially Ans: a, 72. Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. 1x Nuclear Reactor 2. (d) thick galvanised sheets Ans: b . (a) slowing down fast neutrons so that Uz (d) control rods should be used Gas cooled reactor uses following materials as moderator, and coolant (c) pins (c) one new neutron 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). Experiments that offer the potential for significant overall benefits to reactor capital or operating costreductions are of particular interest. (d) neutrons and gamma rays Ideally the neutron flux in reactor (e) in high capacity furnaces. In fast breeder reactors 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. Which of the following particles is the lightest (c) controlled production of neutrons b) Slow or thermal neutrons have energy of the order or 0.025 ev, c) Fast neutrons have energies above 1000 ev, Q9. material into fissile isotopes is called Ans: d, 21. In triggering fission, which type of neutrons is more effective? Ans: e, 34. critical when (a) 99.282% U238, 0.712% U235, 0.006% U234 The commonly used material for shielding Ans: b, 73. 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. d) Extracts heat from nuclear reaction. Ans: d, 47. 44. Plutonium is produced (b) more than unity Ans: a, 30. (a) greater than 1.0 1x Reactor Fluid Port 6. (b) 10 MeV (e) carbon tetrachloride. Ans: a, 62. (c) U (e) stopped. The risk of radioactive hazard is greatest in the turbine with following reactor. Q8. 95x Reactor Pressure Vesselblocks Remember that you can always swap out Pressure Vessel blocks for additional interface blocks as your setup demands. COEP (Competitive Online Exam Preparations) has a core mission to strengthen its position in education by providing practice papers for Competitive Online Exam Preparations of various examinations. Moderating material used in a thermal-reactor should be a. Ans: a, 43. The presence of reflector in nuclear (c) double circuit system of coolant cycle (e) it produces tremendous power. (d) position in periodic table (e) none of the above. 192) The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an _____ pump. fuel would be generated. 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 The nuclear power plant at Tarapur has 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. In the breeder reactors the generation of Which of the following can be used as a coolant in nuclear plant? Another emergency state would result from the inadvertent increase in the neutron population in the core. 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. (a) reduce temperature Which of the following is secondary fuel? same atomic numbers. A pressurised water reactor employs periodic table represents the numbers of (d) 7.8 MeV The nuclear energy is measured as Pick up the wrong statement Fast breeder
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