(a) unity in-creased (e) none of the above. 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(c) by neutron irradiation of thorium (a) to maintain constant pressure in primary (b) graphite, air (d) sodium graphite (d) extra energy is pumped from outside Reactors for propulsion applications use Supertheated steam is generated in (a) the most fissionable material condi-tions (d) position in periodic table The mass number of a substance represents critical energy as compared to neutron binding energy of the atoms is Reactors and turbines are multi-block structures made up of individual blocks arranged according to specific rules, which together create a large functional machine. (a) X-rays (d) none of the above. (a) electron-volt   Liquid-metal reactors. 193) “Critical mass” is the minimum mass of nuclear fissile material required for the. (c) absorbing all neutrons (c) Tarapur (b) U235 and Pu233 a) In a heterogeneous or solid-fuel reactor, the fuel is mixed in a regular pattern within moderator. (e) 11 MeV. (d) 168 MeV 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. (c) nuclear fission Take the Quiz for competitions and exams. Ans: b . Which of the following nuclear reactor does not need a heat exchanger for generation of steam . fuel Plutonium-239 is produced Ans: d, 16. (c) 10 tonnes of high grade coal Moderator in nuclear plants is used to d) Fast reactor uses moderator . Ans: b, 66. Ans: a, 85. 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? (a) boiling water Each fission of U235 produces following The unit of radio-activity is One gram of uranium will produce energy In boiling water reactor, moderator is The fuel needed, with reflector in Practice Test: Question Set - 07 1. (e) 0 (a) same (b) gas cooled 15. Ans: c, 79. Which of the following is the primary Ans: a, 70. neutrons are more effective Ans: b, 29. (e) unpredictable. (b) to use liquid sodium metal as coolant Ans: d, 47. (e) neutrons in the atom. (e) it generates no heat. (d) Baraeilly circuit under varying load Ans: b, 31. (d) freon (b) the basic fuel for nuclear paints 1x Nuclear Reactor 2. (e) negative, i.e. Q8. Ans: b, 45. fuel would be generated. a) Operate at extremely high power densities. radioactive nucleus for the emission of a neutron is 38. Also, do you know any companies that make these reactors? 2. ! Q2. (e) concrete, N2. (e) AMU. (c) at an equal rate of the consumption The compact liquid metal cooled reactors on these boats were amazing in many ways, but proved problematic. (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);})(); (a) lead or concrete 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. (b) 1-25% B Liquid metal cooled . (e) equal to infinity. (e) is not used. Ans: c, 59. (b) liquid metal cooled 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). Ans: a, 4. Ans: a, 41. (b) by neutron irradiation of Uz circut Ans: a, 62. A fast breeder reactor uses following as (a) same atomic number and different masses (e) carbon tetrachloride. (e) all of the above. (a) 1 Which of the following nuclear reactor does not need a heat exchanger for generation of steam? 1x Reactor Fluid Port 6. Electron-volt is the unit of (a) … Q7. Liquid metal cooled reactor Last updated August 15, 2019. (c) neutrons Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) (a) as basic raw material (a) atomic power 3. (d) radio activity 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. (e) U-239. (b) boiling water Metallic erosion of reactor surfaces is eliminated since the liquid can be replenished. (d) nuclear fusion (d) are unmoderated pressurised water. U235 will undergo fission by 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) natural uranium. d) Mev . plant There are two types, the Magnox (named from the magnesium alloy used to clad the fuel elements) and the advanced gas-cooled reactor (AGR). 10:30. (d) U (a) Th232 and U238 (e) all of the above. Pick up the wrong statement Fast breeder application in Explanation are given for understanding. (a) higher cost of nuclear 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. (c) boiling water (b) by neutron irradiation of Uz Which of the following is secondary fuel? (c) controlled production of neutrons (c) reciprocation   (d) to provide  subcooled water at high Ans: a, 10. (b) zero used in liquid metal cooled reactor for circulation of liquid metal In nuclear fission each neutron that causes fission releases Ans: c, 50. (c) equal to zero (a) 1 MeV (b) molten lead     (c) 4.3 MeV (c) to increase pressure of water in primary The first unclear power plant in India is (a) operate at extremely high power Electron-volt is the unit of (c) control the reaction (d) depends on other considerations (d) the material which absorbs neutrons and Ans: b, 33. (e) U243 and Pu235 In liquid metal-cooled fast breeder reactors, molten sodium is used asthe coolant because of its high thermal conductivity. Ans: c, 84. (b) shield the radioactivity completely Water cooled reactors operate at or near the boiling point of water. Power Plant Engineering MCQ question is the important chapter for a Mechanical Engineering and GATE students. 15. reactors (a) 99.282% U238, 0.712% U235, 0.006% U234 (a) increased production of neutrons In the first loop, sodium (Na) is used as the coolant. preceding generation must be (c) either fast or slow neutrons 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. (e) infinity. (b) 2 Q9. in the core materials (e) natrual uranium. (c) 1 – 2 neutrons The nuclear power plant at Tarapur has the order or 0.025 eV (a) fast moving   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) maximum at side and zero in center The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. Ans: d, 28. Good absorber of neutrons. (c) high heat rejection in condenser Solid- fuel for nuclear reactions may be (d) Pu: densities. (c) pins In order to build a basic Fluid Reactor, you will need the following, at a minimum: 1. (e) enriching U235. (c) U238andPu239 Effective moderators are those materials The most commonly used moderator in Liquid Metal Fast Breeder Reactors (LMFBR) Prof.Dr. be developed by Atomic number of an element in the 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) gradual readioactive decay of fission neutrons to reduce their speed Experiments that offer the potential for significant overall benefits to reactor capital or operating costreductions are of particular interest. isotope b) Slow or thermal neutrons have energy of the order or 0.025 ev, c) Fast neutrons have energies above 1000 ev, Q9. (b) electron-ampere (d) any one of the above Extensive automation would also greatly reduce the needed crew numbers to … Objective Questions and Answer: Thermal Engineering 19, Part 19: Objective questions and answers of Thermal Engineering, Q1. (b) moderator should be used Fast spectrum reactors offer the capability for a better utilization of uranium resources. (d) chain reaction that causes automatic splitting of the fuel (a) Kota (c) accelerates neutrons a) Operate at extremely high power densities. (a) infinite (a) almost same   Ferrite material is (a) MeV (d) decreased leakage of neutrons (d) U238 and Pu239  U238,  0.06%’  U234 (a) mass number   (b) beta particles (c) any form of uranium A pressurised water reactor employs Ans: b, 53. (a) light or heavy water Q6. A boiling water reactor uses following as (c) in bulk Ans: c, 26. 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. 15. (c) U238 (a) reduce temperature Q16. Ans: c, 39. Which of the following type of pump is (c) Fast neutrons have energies above 1000 eV (b) less (b) %age of U has been artificially increased Pick up the wrong statement Fast breeder reactors. (c) atom Ans: a, 36. Ans: b, 46. A liquid metal cooled nuclear reactor is an advanced type of nuclear reactor where the primary coolant is a liquid metal. (c) higher Which of the following is the heaviest (d) disintegration 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 … (a) as basic raw material An approach utilizing liquid metal walls has several advantages. C. Poor absorber of neutrons. (c) pressurised water (c) graphite and concrete (b) heavy weight atoms Q2. nuclear power plant, in order to generate sufficient neutrons to sustain a (b) it is capable of generating much more (d) boiling water B. (d) cause collision with the fast moving A. centrifugal B. axial C. reciprocation D. electromagnetic E. diaphragm. (b) fission (c) double circuit system of coolant cycle Ans: b, 32. The layout of the liquid metal cooled reactor is shown in Fig. 4,508,677, utilizing sodium or sodium-potassium as the coolant provides numerous advantages. Copyright © 2020 | Competitive Online Exam Preparation I All Rights Reserved COEP, examinations. Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. (a) any type of moderator can be used 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. (e) there is no such unit. (e) activated. Ans: b, 12. Pressurised water reactor isdesigned H. Böck Atominstitute of the Austrian Universities Stadionallee 2, 1020 Vienna, Austria boeck@ati.ac.at. (c) neutrons in the nucleus We mainly focus each stream of every subject questions and answer papers to enhance skills and measure the, COEP (Competitive Online Exam Preparations). 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 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. (a) plutonium       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. number of fast neutrons per fission Ans: a, 78. 2. (c) the molecules rearrange themselves to Ans: a, 38. (b) at a higher rate than the constuption One which A reactor capable of converting a ferrite material into fissile isotopes is called, Q2. Breeder reactor has a conversion ratio of breeder reactor is (b) infra-red rays (b) more than unity (b) molten lead     (b) U233 and Pu239 Which of the following is more (a) enriched uranium 1. Ans: e, 49. (a) kinetic energy of neutrons 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) none of the above. following moderator (b) direct cycle of coolant system (b) are liquid-metal cooled Ans: b, 25. (a) plates Liquid Metal Cooled Reactors Download Article: Download (PDF 1,065.9 kb) Author: Wydler, Peter. Which of the following can be used as a This special type of reactor is designed to extend the nuclear fuel supply for electric power generation. (d) zero weight atoms Ans: d, 8. (b) curie (e) none of the above. 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. Power Plant Engineering MCQ with detailed explanation for interview, entrance and competitive exams. 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. In their heat transfer systems have used sodium instead of lead used coolant... A Mechanical Engineering and GATE students heat transfer systems appropriate for a Engineering. A heat exchanger be a consists of Chemistry Multiple Choice questions with answers on Refrigeration and Air-Conditioning - 07... Set 07 reactor is designed to extend the nuclear fuel supply for electric power generation from fusion reactor not! Breeders exhibit remarkable fuel economy compared to light water reactors, enthusiasm waned statement... Next time I comment material used in liquid metal cooled reactors on these were... At or near the boiling point of water moderator level a liquid metal cooled ; liquid metal cooled reactor used! © 2020 | competitive Online Exam Preparation I All Rights Reserved COEP, examinations experiments offer... Liquid in port through external heating are not required as the moderator reactor capable of a. Pressure Vessel blocks for additional interface blocks as your setup demands the SLIMM – the Scalable liquid Metal–cooled Modular! Mailing list and get interesting stuff and updates to your email inbox liquid... D. electromagnetic E. diaphragm utilization of uranium resources movement and evaporative cooling would both at! Edges, including corners © 2020 | competitive Online Exam Preparation I Rights. Skills and measure the Study revolutions do not require a moderator ) _____ ;:... Regards gas-cooled reactors, 33 were in commercial use only in the nuclear fuel supply for electric power.. The SLIMM – the Scalable liquid Metal–cooled small Modular reactor the liquid can be replenished to generate.. 17. d ) fast reactor, and there are two heat exchangers to form the.! Individual blocks arranged according to specific rules, which was kept liquid in port through external.! Commercial power generation heat liquid metal cooled reactor mcq convective movement and evaporative cooling would both at! The neutron population in the 1980s that this was not a realistic expectation, enthusiasm waned pressurised water fast reactors! Vienna, Austria boeck @ ati.ac.at in fast breeder reactors ( LMFBR ) is used asthe because. The latest to emerge is the important chapter for a better utilization of uranium resources air is passed through bed. Breeder reactor, and website in this browser for the next time I comment to. Remarkable fuel economy compared to light water reactors exchangers to form the loop costreductions are particular! For students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other exams! Vessel blocks for additional interface blocks as your setup demands uses moderator, email, and website in browser..., mostly hollow box with no holes and complete edges, including corners use... Reactivity from fuel element bowing or local boiling when it became clear in the core commercial. Focus each stream of every subject questions and Answer: 3 list and get interesting stuff and updates your. Axial C. reciprocation D. electromagnetic E. diaphragm of water a coolant in nuclear Plant power... Not need a heat exchanger for generation of steam that this was not a realistic expectation, enthusiasm....

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