90. C. Homogeneous Heavy water nuclear reactors and light water nuclear reactors differ in how they create and manage the complex physics of nuclear fission, or atom-splitting, which produces the energy and heat that creates steam—which then drives the generators. Highly enriched uranium (85% U-235) fuelled 92. CANDU Canadian Deuterium-Uranium Reactor CBM Confidence Building Measures CBW Chemical & Biological Weapons CD Conference on Disarmament CEC Cooperative Engagement Capability ... MCQs paper would be consisting of 100 Multiple choice questions.The time allocated will … The CANDU® Small Modular Reactor (SMR) is the only all-Canadian – and most mature – SMR design available today to help the Government of Canada reach its goal of Net Zero by 2050. Heavy water is used both as coolant and moderator. The acronym refers to its deuterium oxide (heavy water) moderator and its use of (originally, natural) uranium fuel. B. … Evaluate the stable reactor period and define its meaning. Der Advanced CANDU Reactor (kurz ACR) ist eine Weiterentwicklung der CANDU-Reaktoren. for over 50 years, we make significant contributions to the nuclear energy field. They may be run on recycled uranium from reprocessing light-water reactor (LWR) used fuel, or a blend of this and depleted uranium left over from enrichment plants. Q2. Reactors are used for generating electricity. Gen III+ Current Advanced Designs in the Approval Process Pebble Bed Reactor - CANDU reactors use nuclear fuel in the form of natural uranium dioxide pellets, stacked in an array (bundle) of thin-walled tubes of zirconium alloy, E-DOCS #3399585 2 each about 12 mm in diameter and about 0.5 m in length, and called . The water at high pressure around the core absorbs heat from the uranium and supplies to the boiler. So it uses natural uranium as the fuel and heavy water as the moderator. Breeder reactor. Explanation: The CANDU is a Canadian pressurized heavy water reactor design used to generate electric power. C. To start the chain reaction. a. Candu reactor is a ______________ nuclear reactor? Which reactor produces more fissionable material than it consumes ? Your email address will not be published. Boiling Water Reactors (BWR) and Pressurized Water Reactors (PWR). This reduces dependency on uranium in the event of future supply shortages and price increases Use of heavy water as a moderator. Today, CANDU reactors operating in Ontario, Quebec and New Brunswick account for about 15 per cent of Canada’s electricity production. Nuclear Power Engineering Nuclear Power Engineering. 3. The on-line refuelling system uses two identical fuelling machines, which are attached to the ends of the channel to be refuelled. Educational Learning Point having all the articles of multiple subjects/area e.g; Computer Science, Medical, General Knowledge, Law, English, Islamic studies and Others. Atomic physics (or atom physics) is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. A nuclear reaction is considered to be the process in which two nuclear particles (two nuclei or a nucleus and a nucleon) interact to produce two or more nuclear particles or ˠ-rays ().Thus, a nuclear reaction must cause a transformation of at least one nuclide to another. fuel . 94. © Copyright 2016. In operating inherently hazardous technologies like CANDU nuclear reactors, we must anticipate safety-critical component failures rather than idly waiting for them to occur. a reactor which contains catalyst in bundles of small piping which passes the process fluid through the piping and catalyst and its surrounded by heat exchange fluid is a. speed it up/more activity. CANDU reactors can be fuelled with a number of other low-fissile content fuels, including spent fuel from light water reactors. Required fields are marked *. Jobs in Pakistan, Karachi, Lahore, Rawalpindi, Islamabad, Peshawar as published in Jang, Express, Nawa-i-Waqt, The News, Dawn & The Nation Newspapers. (3) At both ends of the fuel channels the zirconium pressure tubes are connected to stainless steel end fittings, which provide mechanical connections for the fuelling machines. Nuclear Reactors - MCQs with answers Q1. Ans: Gas cooled reacator. Scavenging is process of flushing out burnt gases from engine cylinder by introducing fresh air in the cylinder before exhaust stroke ends. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. 0. This reactor is used by countries which does not produce the enriched uranium. Heavy water nuclear reactors and light water nuclear reactors differ in how they create and manage the complex physics of nuclear fission or atom-splitting which produces the energy and heat to … increasing pressure and temperature on a reactor would most likely do what to the reaction? Mcq Added by: Muhammad Bilal Khattak. Natural uranium as fuel and heavy water as moderator and coolant.Explanation: This reactor is Canadian Deuterium Uranium. The function of a moderator in a nuclear reactor is. a. 2. 93. c. Enriched uranium as fuel and ordinary water as moderator and coolant. 91. Light Water Reactors. Many new reactor designs feature fuels that stop reacting when temperatures rise too high, fuel cladding that cannot melt, and coolants that can cool the reactor with no human or mechanical intervention even if there is a total loss of power. The total quality of run off during that period Explanation: The area under a flow duration curve gives the total quantity of run off during that period. As mentioned above, the hot heavy water coolant must transfer the heat to a steam generator, which can then boil the water and send steam to a turbine section. CGE had developed this design on the basis of its earlier work in the design of NPD. b. CANDU reactor uses (A) Highly enriched uranium as fuel and light water as moderator and coolant (B) Natural uranium as fuel and heavy water as moderator and coolant ... Only fertile material. Compressor in gas turbine plant - MCQs with answers, Power factor improvement - MCQs with answers, Maximum demand tariff - MCQs with answers, Two and three part tariff - MCQs with answers, Flat rate and Block rate tariff - MCQs with answers, Power Plant Economics - Depreciation - MCQs with answers, Power Systems - Switchgear and Protection. genealogy of the CANDU reactor from its inception to the current state of the art. B. A CANDU Reactor is safe by design and safe by operation. How CANDU Reactors Differ from Light Water Reactors . PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS … A. Pressurised water reactor (PWR) B. Boiling water reactor (BWR) C. Candu reactor D. Molten sodium cooled reactor a. 1 and 2 c. 2 and 3 d. 1,3 Answer mcqs for css ppsc fpsc nts ots uts cts and other exam multiples choice (mcqs) for the preparation of css ppsc fpsc nts ots uts cts and other exam educational platform for jobs seeker or unemployed person for better future. D. Fast breeder. A CANDU reactor uses _____. The first reactor unit at the Karachi Nuclear Power Plant is a single CANDU-type pressurized heavy-water reactor (PHWR)with a total gross energy generation capacity of 137 Megawatts (MW). Reactors designed for propulsion applications are designed for (a) natural uranium (b) enriched uranium (c) pure uranium (d) any type of uranium (e) none of the above. 1. Breeder reactor. The initial concentrations of A, B and C (CA0, CB0, CC0 respectively) are all non-zero. ANSWER: a. BWRExplanation: BWR reactor use enriched uranium and feed water as moderator and coolant. CANDU reactor. a. 2. Atomic Bombings of Hiroshima and Nagasaki – World War II, 1945 Atomic Bombings of Hiroshima and Nagasaki – World War II, 1945 These nuclear disasters were… Point Lepreau was the first CANDU 6 reactor to be licensed for operation, the first to achieve criticality and first to begin commercial operation. c. Plot qualitatively the reactor power variation over time d) Discuss the importance of delayed neutrons in nuclear reactors. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. Which reactor requires no moderator ? Natural uranium as fuel and heavy water as moderator and coolant. The reason that a steam generator is used is due to the fact that the heavy water coolant is radioactive from being in direct contact with the reactor core. Cost of fuel used is much lower than that used in pressurized water or boiling water reactor. The CANDU has been a marketing failure. —–> MCQS PDF <—– 1. Evaluate the prompt reactor period and define its meaning. The area under the flow duration curve represents a. These features make meltdown … A. k2 CB0 > k1 CA0 B. k CA0 > k2.CB0 C. CB0 > CA0 D. CA0 > CB0. The waters in the two loops never mix. Natural uranium fuelled heavy water cooled & moderated Following this successful commercial sale, CGE had hoped to expand its markets for CANDU-type plants, both domestically and offshore. MCQ - 04. CANDU. Answer (B) MCQs of Conventional Generation, Load Curves and Tariffs. The acronym refers to its deuterium oxide (heavy water) moderator and its use of (originally, natural) uranium fuel. Nuclear Reactors - MCQs with answers Q1. b. Which nuclear reactor uses water as a coolant, moderator and reflector ? For educational use only, no assumed liability. Ans: b. CANDU reactors can accept a variety of fuels. Nuclear Reactor - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The reactor is currently in safe storage, awaiting final decommissioning. Scribd is the world's largest social reading and publishing site. Read more about Whiteshell Laboratories’ licensed activities. The coolant heavy water is passed through the pressurized fuel tubes and the heat exchanger. Units: The power station currently operates four Pressurised Heavy Water Reactor (PHWRs), all of which are small-sized CANDU plants of 220 MW. It combines features of the existing CANDU pressurised heavy water reactors (PHWR) with features of light-water cooled pressurized water reactors (PWR). Highly enriched uranium Page 2/5. Signaling its intent to fast-track India’s domestic nuclear power programme, the government on Wednesday approved a proposal to construct 10 indigenous units of pressurised heavy water reactors (PHWRs), each with the capacity of generating 700 Mega Watt (MW) of electricity, in a fully home grown initiative. This water enters from the bottom of the tank and takes up the heat generated due to the fission of fuel and gets converted into steam. CANDU in Context – September 2014 PROLOGUE CANDU in Context prepared by Dr. William J. Garland, Professor Emeritus, Department of Engineering Physics, McMaster University, Hamilton, Ontario, Canada Summary: Herein, we introduce the CANDU reactor by first looking at the broad social context to see why we need nuclear power. The realm of atomic and nuclear physics Nuclear physics is the field of physics that studies the building blocks and interactions of atomic nuclei. The cumulative defect rate for CANDU fuel is 0.1%, with the current rate running below 0.05% (1). PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION. The research and prototype reactors leading to the CANDU design are described with some of their principle technical parameters. It is situated on the outskirts of, and provides power to, the city of Toronto, Ontario. Genealogy of CANDU Reactors – September 2016 CHAPTER 2 Genealogy of CANDU Reactors prepared by Dr. Robin Chaplin Summary: This chapter discusses the historical beginnings and evolution of the CANDU reactor. Email This BlogThis! The power station currently operates four PHWRs, all of which are small-sized CANDU plants of 220 MW. MCQ - 03. Access Free Nuclear Medicine Mcq as fuel and light water as moderator and coolant. [5 points] Question 6 [15 points, 5 points/each] Use the following parameters for this problem To slow down the fast-moving electron. Click the "Next" button below to … At its most basic level, a nuclear power plant is similar to a coal-fired electric power plant — a fuel source is used to heat up water to create steam to spin a turbine to generate electricity. Ans: Breeder reactor. The total units of energy available b. The Advanced CANDU reactor (ACR), or ACR-1000, is a Generation III+ nuclear reactor designed by Atomic Energy of Canada Limited (AECL). 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