Water spray can be used to condense the steam when pressure is to be reduced. The total units of energy available b. Natural uranium as fuel and heavy water as moderator and coolant. Scavenging is process of flushing out burnt gases from engine cylinder by introducing fresh air in the cylinder before exhaust stroke ends. b. Light Water Reactors. Gen III+ Current Advanced Designs in the Approval Process Pebble Bed Reactor 2. The CANDU is a Canadian pressurized heavy water reactor design used to generate electric power. A CANDU Reactor is safe by design and safe by operation. Evaluate the stable reactor period and define its meaning. (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. The variation of CB with reaction time will not show a maximum, if_____? The CANDU reactor has a design flaw that makes it subject to potentially catastrophic LOCAs with little or no warning – at least under the present inspection procedures and practices. CANDU-type nuclear reactor using natural uranium finds extensive use because 1. A CANDU reactor uses _____. 90. a. Hence the entire primary circuit including all the major components in the circuit needs to be shielded to protect the personnel handling it and the walls of the reactor from exploding. c. Plot qualitatively the reactor power variation over time d) Discuss the importance of delayed neutrons in nuclear reactors. Evaluate the prompt reactor period and define its meaning. The acronym refers to its deuterium oxide (heavy water) moderator and its use of (originally, natural) uranium fuel. b. 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. Der Advanced CANDU Reactor (kurz ACR) ist eine Weiterentwicklung der CANDU-Reaktoren. c. Enriched uranium as fuel and ordinary water as moderator and coolant. 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 create steam to drive generators. 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 . 3. ANSWER: d. All of the aboveExplanation: The main purpose is also to protect from the deadly, α , β and γ radiations. The CANDU has been a marketing failure. MCQ - 05. Flue Gases and Super Heater in Thermal Power Plant - MCQs wi... Boiler in Thermal Power Plant - MCQs with answers. Heavy water is used both as coolant and moderator. MCQ - 02. Following this successful commercial sale, CGE had hoped to expand its markets for CANDU-type plants, both domestically and offshore. The following section consists of Chemistry Multiple Choice questions on Nuclear Power Engineering. A. Pressurised water reactor (PWR) B. Boiling water reactor (BWR) C. Candu reactor D. Molten sodium cooled reactor 93. About: The Kaiga Atomic Power Station (KAPS) is a nuclear power generating station situated at Kaiga, near the river Kali, in Uttar Kannada district of Karnataka, India. Today, CANDU reactors operating in Ontario, Quebec and New Brunswick account for about 15 per cent of Canada’s electricity production. The first order series reaction as shown in the bellow figure is conducted in a batch reactor. 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. Mcq Added by: Muhammad Bilal Khattak. D. Fast breeder. - 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 . 0. To slow down the fast-moving electron. HOW CANDU REACTOR WORKS In the reactor, neutrons … The Advanced CANDU reactor (ACR), or ACR-1000, is a Generation III+ nuclear reactor designed by Atomic Energy of Canada Limited (AECL). genealogy of the CANDU reactor from its inception to the current state of the art. What is the difference between scavenging and supercharging ? Ans: b. 2. This document is highly … (adsbygoogle = window.adsbygoogle || []).push({}); PakMcqs.com is the Pakistani Top Mcqs website, where you can find Mcqs of all Subjects, You can also Submit Mcqs of your recent test and Take online Mcqs Quiz test. Your email address will not be published. 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. In a nuclear reactor, multiplication factor is kept almost equal to one 3. Ans. reactor core. A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled and sustained at steady rate. 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. 2. C. To start the chain reaction. Point Lepreau was the first CANDU 6 reactor to be licensed for operation, the first to achieve criticality and first to begin commercial operation. The CANDU 6 reactor has 380 fuel channels, the CANDU 9 reactor has 480. Newer PHWR designs, such as the Advanced Candu Reactor, have light water cooling and slightly-enriched fuel. MCQ - 04. Nuclear Reactor - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The plant has been in operation since 2000 and is operated by the Nuclear Power Corporation of India. bundles. … b. The CANDU (Canada Deuterium Uranium) is a Canadian pressurized heavy-water reactor design used to generate electric power. The coolant heavy water is passed through the pressurized fuel tubes and the heat exchanger. Ans: Gas cooled reacator. a … 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. CANDU reactors have an outstanding performance record, taking four of the top five places on Nuclear Engineering International’s 2013 Top Lifetime Performers List. Nuclear Reactors - MCQs with answers Q1. Candu reactor is a ______________ nuclear reactor? 1.A thermal reactor needs a moderator material 2. all of these . The area under the flow duration curve represents a. How CANDU Reactors Differ from Light Water Reactors . The light water reactors are of two types viz. Which reactor uses primary coolant as fluoride salts of lithium, beryllium, thorium and uranium ? Atomic Bombings of Hiroshima and Nagasaki – World War II, 1945 Atomic Bombings of Hiroshima and Nagasaki – World War II, 1945 These nuclear disasters were… c. Enriched uranium as fuel and ordinary 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. Power Systems - Electrical Power Generation. Which reactor uses heavy water as moderator ? Supercharging is the process of supplying higher mass of air by compressing the atmospheric air. ANSWER: a. BWRExplanation: BWR reactor use enriched uranium and feed water as moderator and coolant. 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. 96. Nuclear Power Engineering Nuclear Power Engineering. It is primarily concerned with the arrangement of electrons around Which reactor uses natural uranium as fuel ? Similarly, the government's promised $75 million to complete development of a next-generation Candu reactor — called the Enhanced Candu 6 - may not be the last public cash into that project. Highly enriched uranium (85% U-235) fuelled C. Homogeneous D. Fast breeder. 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. The NRX reactor at Chalk River Laboratories (CRL), Canada's first large-scale research reactor, began operation in 1947 and played a major role in developing the CANDU reactor. D. To transfer heat produced inside the reactor to a heat exchanger. Which reactor produces more fissionable material than it consumes ? 4. B. fuel . MCQ - 03. 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 … Posted by engineering raju at 02:18. MCQ - 01. The cumulative defect rate for CANDU fuel is 0.1%, with the current rate running below 0.05% (1). The research and prototype reactors leading to the CANDU design are described with some of their principle technical parameters. Your email address will not be published. 1. 3. 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. The CANDU reactor system has proven itself to be a world leader in terms of station availability and low total unit energy cost. In a BWR, the reactor core heats water which turns to steam and then drives a steam turbine. The CANDU And PHWR Reactors The CANDU (Canada Deuterium Uranium) reactor was developed in the 1950s in Canada, and more recently in India as the PHWR (Pressurized Heavy Water Reactor). In the end, your results will be displayed on the spot. Highly enriched uranium as fuel and light water as moderator and coolant. Small leakage of heavy water does not affect the performance of the reactor substantially. Molten salt breeder reactor. Which nuclear reactor uses water as a coolant, moderator and reflector ? MCQ - 07. The reactor is currently in safe storage, awaiting final decommissioning. Ans: Breeder reactor. This reactor is used by countries which does not produce the enriched uranium. Take the Quiz for competitions and exams. CANDU. CANDU reactors will inevitably worsen the economic and environmental situation of importing countries. 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 …
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