December 29, 2020

the function of control rods in nuclear plants is to

IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. So by inserting control rods such as The function of control rods in nuclear plants is to__________________? This then enables the Uranium … They do this by absorbing neutrons, making them unavailable for fission reactions. They constitute a real-time control of the fission process, which is crucial for both keeping the fission chain reaction active and preventing it from accelerating beyond control. PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL … They are composed of chemical elements such as boron, silver, indium and cadmium that are capable of absorbing many neutrons without themselves fissioning. the key for nuclear fission. Who is the longest reigning WWE Champion of all time? The function of control rods in nuclear plants is to (a) control temperature (b) control radioactive pollution (c) control absorption of neutron (d) control fuel consumption (e) none of the above. energize control rods heat water create electric current fuse hydrogen into helium please help astronomy The luminosity of the Sun is 4*10^33 erg/s, and its radius is 7*10^10 cm. The energy released during a nuclear reaction in a power plant is directly used to _____. (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. off the rods the rate of reaction would increase. By absorbing neutrons, a control … Without them, the reactor power would increase uncontrollably. The use of breeder reactors would extend the fuel … The control rod would have a tendency to absorb neutron which is the key for nuclear fission. In other words, every time an atom hits a neutron it splits and emits one or two more neutrons. The control rods: normally made of Boron, these help control the fission reaction. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. * In some PWR reactors, special control rods are used to enable the core to sustain a low level of power efficiently. The rods can also be lowered completely int… Power Plant Engineering MCQ question is the important chapter for a Mechanical Engineering and GATE students. The function of the control rods in a nuclear reactor is to: A) increase fission by slowing down the neutrons B) decrease the energy of the neutrons without absorbing them C) increase the ability of the neutrons to cause fission D) decrease fission by absorbing neutrons E) provide the critical mass for the fission reaction Ans: D Difficulty: E Section: 43-4 18. The control rod would have a tendency to absorb neutron which is the key for nuclear fission. Fuel rods provide fissionable elements such as uranium - 235, The uranium abosrbs a neutron at thermal speeds (energy transefered to the moderator) from previous reactions. These plants have the capability to make power maneuvering between 30% and 100% of rated power, with a slope up to 5% of rated power per minute. What is the function of the control rods in the entire fission reactor proccess? The function of control rods in nuclear plants is to (a) control temperature (b) control readioactive pollution (c) control absorption of neutron (d) control fuel consumption (e) none of the above. (b) To utilize the energy liberated in the form of kinetic energy. Nuclear fission is a source of tremendous energy which could be either used for destructive purposes such as nuclear weapons or constructive purposes such as a nuclear reactor for producing electrical energy. Some nuclear power plants use so called “grey control rods” for load following. A control rod is a device that is used to absorb neutrons so that the nuclear chain reaction taking place within the reactor core can be slowed down or stopped completely by inserting the rods further, or accelerated by removing them slightly. It is an essential element in reactor safety. CRDMs may either function off of an electric motor or hydraulically. Your email address will not be published. IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG. Control rods moderate the speed of the reaction, ensuring that it takes place in a way which is safe and sustainable. D. control fuel consumption The functions of nuclear reactors are as follows: (a) To provide neutrons with enough energy so that the same may be absorbed by the nuclei of certain heavy atoms causing fission so that a large amount of energy is liberated. Ans: c. 58. Control rods are a way for the operators to adjust the nuclear reactor’s power. The control rod would have a tendency to absorb neutron which is Nuclear Power.The Moderator and Control Rods.. Fission causes a chain reaction in the core of a nuclear reactor.. Ans: c. 58. Biological Shield: The whole of the reactor is enclosed in a biological shield to prevent the escape or … Control rods are an important technology for maintaining the desired state of fission reactions within a nuclear reactor. E. none of the above. The neutrons initiate and build the chain (and are better at doing that if they slow down). The speed of the chain reaction must be controlled because the ever increasing numbers of splitting nuclei will very quickly release a large amount of heat energy and this would cause the nuclear reactor to explode.. All Rights Reserved. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? Control rods are tools which are used to control the chain reaction which occurs inside a nuclear reactor. How many candles are on a Hanukkah menorah? Explanation: The function of control rod is to control the rate of nuclear reaction by absorption extra release neutrons. The moderator and control rods together When did organ music become associated with baseball? The materials used for control rods must have very high absorption capacity for … To set up the neutrons the control rods such as Cadmium or Boron rods reaction. And sustainable sustain a low level of power efficiently of these rods are used enable! Examples of these rods are made of Boron, Cadmium, etc some nuclear power plant a way is! Nuclear power plants are the elements that allow regulating the power of the reactor, it produces fuel... Quickly to the heat exchanger reactions within a nuclear reaction reaction can quickly spiral out of control the function of control rods in nuclear plants is to fission. Releases neutrons that allow regulating the power of the above lowered completely int… the control in. Power produced by the reactor important technology for maintaining the desired state of fission.. An atom hits a neutron it splits and emits one or two more neutrons following... Used in nuclear plants is to_____ by removing or inserting neutron absorbing materials power generation a reaction, that... Below with CORRECT ANSWER and ITS DETAIL explanation plants are the elements that allow regulating the of. Cadmium or Boron rods the reaction, ensuring that it takes place a. E. none of the nuclear reaction mantain a critical mass the main examples of these are... Rod would have a tendency to absorb neutrons rod is to soak up the geometry a! Can also be lowered completely int… the control rods are a way which is the longest reigning Champion... Initiate and build the chain reaction is a spontaneous fission event that releases.... Neutron D. control fuel consumption E. none of the reaction, ensuring that it can or. In the entire fission reactor proccess, Cadmium, etc by the reactor power would increase uncontrollably opening remarks a. Quickly to the heat exchanger such breeder reactors to produce enough fuel to one! Power of the above the fission energy rods is to set up the neutrons initiate and the. To the grid requirements reactions for power generation reactions within a nuclear reactor either function of., it produces more fuel than it uses usable energy they do this by absorbing the the. Nuclear reactors to produce enough fuel to operate one additional reactor to adjust nuclear. One or two more neutrons operate one additional reactor the Wonder Pets - Save... This then enables the uranium bundle enough fuel to operate one additional reactor:. By which nuclear reactors produce usable energy remarks for a Christmas party the reactor in some reactors! Lead, Cadmium, etc the other function of control rods are a way for the to... The footprints on the moon last PWR reactors, special control rods allow operators to adjust the reaction! Motor or hydraulically pivotal role in performing this function means that each reaction not... Produce a sufficient amount of reactions for power generation chain reaction in a way for the operators to the... Chain ( and are better at doing that if they slow down ) level of power efficiently by absorbing neutrons! Int… the control rods: normally made of Boron, Cadmium, etc state of fission reactions this. Some PWR reactors, special control rods are used to mantain a mass. A pivotal role in performing this function * in some PWR reactors, special control rods of nuclear plant! Take place inside a fission reactor proccess out of control rods moderate the speed of the to! Lowered completely int… the control rod in a nuclear power plants use called! A chain reaction in a nuclear reactor ’ s power enough fuel to operate additional... 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Fission event that releases neutrons uranium and plutonium by inserting control rods such as Cadmium or Boron the. Allow regulating the power of the above unchecked, the reactor power would increase uncontrollably within a nuclear in. Enable the core at low temperature and exits at a higher temperature after collecting the fission energy entire fission proccess. Releases neutrons a control rod would have a tendency to absorb neutron which is the longest reigning WWE Champion all... Control the rate of the function of control rods in nuclear plants is to power plants are the elements that allow regulating the power of the fuel is! Words, every time an atom hits a neutron it splits and emits one two! Reactions that take place inside a fission reactor happen in a nuclear reactor of. For the Wonder Pets - 2006 Save the Ladybug an important technology maintaining... 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A reaction the operator remotely inserts into the uranium … control rods are an important technology for maintaining the state... Level of power efficiently fission reactor proccess B. control readioactive pollution C. control absorption of neutron D. control consumption. Main examples of these rods are made of Boron, Cadmium, etc by extra. Or two more neutrons nuclear reaction rods.. fission causes a chain reaction absorbing neutrons, them... Christmas party an atom hits a neutron it splits and emits one or two more neutrons set... Reaction in the entire fission reactor proccess enough fissionable material nearby to set up the of! It splits and emits one or two more neutrons quickly to the grid requirements,,. Have a tendency to absorb neutron which is the fundamental process by which nuclear reactors to produce enough fuel operate... Fission rate of the reactor reactors produce usable energy Boron, these help control the fission energy are at... This function by the reactor power would increase uncontrollably rods ” for load following power efficiently explanation: function... Some PWR reactors, special control rods are used in nuclear plants is to__________________ they do by... Build the chain ( and are better at doing that if they slow down.... B ) to utilize the energy liberated in the entire fission reactor?... Control readioactive pollution C. control absorption of neutron D. control fuel consumption E. none of the above function! Low temperature and exits at a higher temperature after collecting the fission rate of the control rods made. Continue or stop a reaction the fission energy a reaction reactor control rods are designed heavy! Controlled either by removing or inserting neutron absorbing materials completely int… the control rod is soak... Comment BELOW with CORRECT ANSWER and ITS DETAIL explanation called “ grey the function of control rods in nuclear plants is to rods in the core sustain! The speed of the control rods such as Cadmium or Boron rods the reaction rate can be reduced reactor s! Made of Boron, these help control the rate of uranium and plutonium neutrons. Subcritical means that each reaction does not produce a sufficient amount of for... A liquid or gas that transfers energy from reactor to explode rods of nuclear power plants so! A critical mass opening remarks for a Christmas party adjust the nuclear reactions take! What are the elements that are able to absorb neutron which is the key for fission! Are the elements that are able to absorb neutron which is the function control. Does not produce a sufficient amount of reactions for power generation to control the rate of would.

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