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an instantaneous relay is mcq

(d) none of the above. (c) detect the fault current. b) Overhead line equipment b) Bound electrons are always present in the semiconductor. c) Rotor faults The function of this relay is very fast. d) None of these A. Burden of a protective relay is the power (a) required to operate the circuit breaker (b) absorbed by the circuit of relay (c) developed by the relay circuit (d) none of the above Ans: b. Due to unequal torques at two ends of the beam, it starts rotating against the hinge and ultimately closes the contacts of the relay. Long Transmission Line. Such as, attracted armature relay where an iron plunger is attracted by an electromagnet to actuate the relay. The highest frequency is 150Hz. When current in the solenoid crosses pick up value, the solenoid attracts an iron plunger which moves to close the relay contacts. b) 0.001 sec B. The conduction in JEFT is always by the a) Majority carriers b) Minority carriers c) Holes Which of the following statement is true? Multiple Choice Question (MCQ) of Electronics page-13:181. (c) full load. d) None of the above, Multiple Choice Question (MCQ) of Electronics page-13:181. Definite Time Over-current Relay 3. c) 3 ɸ motor Relay settings means actual value of the energizing or characteristic quantity at which the relay is designed to operate under given conditions. Directional relays are based on flow of (a) power (b) current (c) voltage wave (d) all of the above Ans: a. b) 2r ɸ motor For the protection of a very long extra high voltage line, the protective relay used is . b) The saturation voltage VCE for germanium transistor is more than silicon transistor. 24. d) Electrons c) Holes More specifically ideally there is no time required to operate the relay. Ans: (b). The materials whose electrical conductivity is usually less than 1 × 106 mho/m are Instantaneous Over-current Relay 2. Percentage differential relay. D. Both (b) and (c) Answer/ Hint Multiple Choice Question (MCQ) of Electronics page-16:226. Relays for transmission line protection are. Instantaneous Over-current Relay is one in which no intentional time delay is provided for the operation. 13) A low pass filter is. Therefore f max = 150Hz Nyquist rate = 2 f max = 2 * 150 = 300Hz. Page-2 section-1 Learn Switchgear Protections MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. b) External faults j. d) None of these Electrical Engineering XYZ presents most important power system protection MCQs on important topics including fuses, relays, circuit breakers, machines, motors, transformers, alternator, grounding and protection schemes. An instantaneous relay is. These relays can be operated in less than 0.1 sec. 40. 3. More specifically ideally there is no time required to operate the relay. An instantaneous relay is one in which there is no time delay provided intentionally. c) Free electrons are always present in the semiconductor. Related Multiple choice questions: Analog Circuits multiple choice objective questions and answers part1 Analog Circuits multiple choice objective questions and answers part2 C. Rms value. Enter your email below to receive FREE informative articles on Electrical & Electronics Engineering, SCADA System: What is it? The relay must work efficiently to trip the circuit breakers if there are faults present. This adjustment is known as Time Setting Multiplier or TSM. (of a relay) A term for contact operation (opening or closing) as a relay just departs from pickup. Define Plug Setting Multiplier? 23. In simple words relay is an electrical device that gives signal to isolation device (eg: Circuit Breaker) after sensing the fault and helps to isolate the fault system from the healthy electrical system. c) Number of ampere turns a) UJT The magnetic strength of the electromagnet depends upon the current flows the coil conductors. Ans. A circuit breaker is a device used to (a) limit the current. d) None of these Instantaneous relay is. If you have any Questions regarding this free Computer Science tutorials ,Short Questions and Answers,Multiple choice Questions And Answers-MCQ sets,Online Test/Quiz,Short Study Notes don’t hesitate to contact us via Facebook,or through our website.Email us @ [email protected] We love to get feedback and we will do our best to make you happy. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Ans: (c), a) Directional type Dec 24,2020 - Power Systems 2 MCQ | 20 Questions MCQ Test has questions of Electrical Engineering (EE) preparation. The time of operation of such Relay is approximately 100 ms. Instantaneous Over-current relay is employed where the impedance between the source and the Relay is small as compared with the impedance of the section to be provided. Ans: (d), a) 0.0001 sec Burden of a protective relay is the power. That means the moving parts of the relay take total 3 seconds to travel 100 % traveling distance. c) Sense the fault and direct to trip the circuit breaker The conduction in JEFT is always by the c) Alternator Passes the frequencies lower than the specified cut off frequency d) Motors Answer.2. d) Every internal faults The transient voltage that appears across the circuit breaker contacts at the instant of arc extinction. Angle modulation may be defined as the process in which the total phase angle of a carrier wave is varied in accordance with the instantaneous value of the modulating or message signal while keeping the amplitude of the carrier constant. Ans: (b), a) Inter-turn fault For example, dropout ratio of a typical instantaneous overvoltage relay is 90 percent. ... Instantaneous value, rms value. If the faults are severe it disconnects the transformer from the supply. c) PUT Plug Setting Multiplier and is defined as the ratio of fault current in the relay coil to the pick up value. Multiple Choice Question (MCQ) of Electronics page-13:181. (b) normal condition. b) Non-directional type b) Minority carriers In […] What is meant by “Relay Settings”? Normally a Time Setting Dial is provided which is calibrated from 0 to 1 s in step of 0.05 s. d) 0.1 sec Ans: (c), a) Break the fault current Ans: (a), a) Transformer It is an electrical device designed to initiate the isolation of a part of the electrical installation, or to operate an alarm signal, in the event of abnormal condition or a fault. These time delays are inherent in the instantaneous relay but no other time delay is intentionally added. Directional relays are based on flow of (a) power (b) current (c) voltage wave (d) all of the above Ans: a 25. 2. Q. Short Questions and Answers on Angle Modulation (FM and PM) Q.1. a) Permanent moving magnet b) Induction cup c) Shaded pole d) Moving coil Ans: (a) 18. This test is Rated positive by 92% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by … Because ideally there is no time delay between the instant when actuating current crosses the pick up level and the instant of closing the No contacts. The conduction in JEFT is always by the a) Majority carriers b) Minority carriers c) Holes a) Semiconductors d) All of these a) 0.0001 sec b) 0.001 sec c) 0.01 sec d) 0.1 sec Ans: (c) 9. « Back CONTENTS Next » 1. b) CUJT d) Alloys, Multiple Choice Question (MCQ) of Electronics page-14:196. What is protective relay? a. Full disclaimer here. d) All of these Required to operate the circuit breaker. An instantaneous relay is one in which there is no time delay provided intentionally. Which of the following statement is correct? Explain the working of an IDMT relay? What do you mean by angle modulation? Economics of Operation page-6, Objective Type Question or MCQ of B. b) Greater than voltage element torque a) Inner electrons are always present in the semiconductor. D. Mho type distance relay In an IDMT (inverse definite minimum time) relay, the operating principle is based on the idea that with the more severe a fault is, the faster it should be cleared to avoid damage to the apparatus. Threshold characteristics of a plain impedance relay in a complex Z plane is a . Also identifies the maximum value of an input quantity that will allow the relay to depart from pickup. Dec 27,2020 - Power Systems - MCQ Test 2 | 20 Questions MCQ Test has questions of GATE preparation. 1. An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. Another popular example of instantaneous relay, is solenoid type relay. c) Reactance type Say a relay has a time setting 0.1 and you have to calculate actual time of operation for PSM 10. Instantaneous overcurrent relay. c) Both (a) and (b) Economics of Operation page-2, Objective Type Question or MCQ of B. B. Instantaneous relay having a setting of approximately 30% of motor rated current in the residual circuits of two CTs. This test is Rated positive by 85% students preparing for GATE.This MCQ test is related to GATE syllabus, prepared by GATE teachers. When there is a current in fixed coil above the pick up value, the iron plunger is so attracted, it moves upward and makes NO contact closed. (b) interrupt the circuit. There is also some time required for mechanical movement plunger in the relay. Instantaneous relay should operate within. 1.A single phasing relay can be used with, a) 1ɸ motor A Relay is generally provided with control to adjust the time of operation of the Relay. Ans: (a), a) Load There are various types of relay which can be considered as instantaneous relay. d) All of these An isolator is a device design to operates on (a) no load. Newbies and freshers must clear the basic concepts due to the confusing terms used in the electrical and electronics engineering theories and studies such as short circuit, overcurrent, overvoltage and overload etc. Explanation:-MHO relay is a high-speed relay and is also known as admittance relay. This is a simplest example of instantaneous relay. Economics of Operation page-5, Objective Type Question or MCQ of B. It is an electrical device designed to initiate the isolation of a part of the electrical installation, or to operate an alarm signal, in the event of abnormal condition or a fault. The normally open (NO) contacts of the relay are closed as soon as current in the fixed coil crosses the pick up value. The Impedance relay is suitable for the phase faults relaying for the lines of moderate lengths Reactance type relays are employed for the ground faults while Mho type of relays are best suited for the long transmission lines and particularly where synchronizing power surge may occur. A. Circle passing through origin B. Circle with the centre at the origin C. Straight line passing through origin D. Straight line offset from the origin The slow developing faults called incipient faults in the transformer tank below oil level operate Buchholz relay which gives an alarm. b) Internal faults Inverse Time Over-current Relay. (d) control the fault current. Main Difference Between Overload, Overcurrent and Overvoltage. A. Buchholz relay is a device which is used for the protection of transformer from its internal faults, it is a gas based relay. c) The saturation voltage VCE for silicon transistor is same as that for germanium. 24. From the time / PSM graph of the relay as shown below, we can see the total operating time of the relay is 3 seconds. 8. Multiple Choice Question (MCQ) of Electronics page-13:181. Burden of a protective relay is the power (a) required to operate the circuit breaker (b) absorbed by the circuit of relay (c) developed by the relay circuit (d) none of the above Ans: b 24. Decreased stability of the power system. c) 0.01 sec Fault current in relay coil / Pick up current. Economics of Operation page-1, Objective Type Question or MCQ of Power System Protection page-8, Objective Type Question or MCQ of Power System Protection page-7, Objective Type Question or MCQ of Power System Protection page-6, Objective Type Question or MCQ of Power System Protection page-5, Objective Type Question or MCQ of Power System Protection page-4, Objective Type Question or MCQ of Power System Protection page-3, Objective Type Question or MCQ of Power System Protection page-2, Objective Type Question or MCQ of Power System Protection page-1, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-11, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-10, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-9, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-8, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-7, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-6, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-5, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-4, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-3, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-2, Multiple Choice Question (MCQ) of Alternator and Synchronous Motors page-1. b) Conductors whenever any internal fault occurs in a transformer, the Buchholz relay at once gives a horn for some time, if the transformer is isolated from the circuit then it stop its sound itself otherwise it trips the circuit by its own tripping mechanism. Switchgear Protections MCQ question is the important chapter for a Electrical Engineering and GATE students. a) Hinged armature type b) Polarized type c) Balanced beam type d) All of these Ans: (a) 35. A. Although there is some time delay which can not be avoided. d) All of these Switchgear and Protection MCQ Objective questions & answers are available for a Electrical Engineering students to clear various technical interview, competitive examination, and another entrance exam. When attractive force of the electromagnet crosses its pick up level, the iron plunger starts move towards the magnet and crosses the relay contacts. C. Ground wire. Electrical4U is dedicated to the teaching and sharing of all things related to electrical and electronics engineering. C. Reactance type distance relay . Multiple Choice Question (MCQ) of Electronics page-17:241. a. 10) In an electromechanical relay, the necessity of connecting an external base resistance arises only _____ a. in the presence of an internal pull-up resistor b. in the absence of an internal pull-up resistor Economics of Operation page-3, Objective Type Question or MCQ of B. Ans: (c), a) Equal to voltage element torque The pickup value is Multiple Choice Questions with Answers on Refrigeration and Air-Conditioning - Set 07 Practice Test: Question Set - 07 1. Multiple Choice Question (MCQ) of Electronics page-15:211. These MCQs are often included in competitive exams, university tests, job interviews, and tests. c) Unidirectional type (Supervisory Control and Data Acquisition), Programmable Logic Controllers (PLCs): Basics, Types & Applications, Diode: Definition, Symbol, and Types of Diodes, Thermistor: Definition, Uses & How They Work, Half Wave Rectifier Circuit Diagram & Working Principle, Lenz’s Law of Electromagnetic Induction: Definition & Formula. b) Sense the fault Over current with extremely inverse characteristics . Ans: (c), a) Impedance type 10. Balance beam relay is also an well known example of instantaneous relay. Electrical Engineering Interview Questions Question 6. b) MHO type a) The saturation voltage VCF of silicon transistor is more than germanium transistor. In which of the following device the base resistors are not added in the package but added externally? a) Majority carriers e) Holes and electrons simultaneously, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-20, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-19, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-18, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-17, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-16, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-15, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-14, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-13, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-12, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-11, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-10, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-9, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-8, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-7, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-6, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-5, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-4, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-3, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-2, Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-1, Objective questions and answers or MCQ of Electrical Machines page-22, Objective questions and answers or MCQ of Electrical Machines page-21, Objective questions and answers or MCQ of Electrical Machines page-20, Objective questions and answers or MCQ of Electrical Machines page-19, Objective questions and answers or MCQ of Electrical Machines page-18, Objective questions and answers or MCQ of Electrical Machines page-17, Objective questions and answers or MCQ of Electrical Machines page-16, Objective questions and answers or MCQ of Electrical Machines page-15, Objective questions and answers or MCQ of Electrical Machines page-14, Objective questions and answers or MCQ of Electrical Machines page-13, Objective questions and answers or MCQ of Electrical Machines page-12, Objective questions and answers or MCQ of Electrical Machines page-11, Objective questions and answers or MCQ of Electrical Machines page-10, Objective questions and answers or MCQ of Electrical Machines page-9, Objective questions and answers or MCQ of Electrical Machines page-8, Objective questions and answers or MCQ of Electrical Machines page-7, Objective questions and answers or MCQ of Electrical Machines page-6, Multiple Choice Question (MCQ) of Protective Relays page-4, Multiple Choice Question (MCQ) of Protective Relays page-3, Multiple Choice Question (MCQ) of Protective Relays page-2, Multiple Choice Question (MCQ) of Protective Relays page-1, Multiple Choice Question (MCQ) of Circuit Breaker page-3, Multiple Choice Question (MCQ) of Circuit Breaker page-2, Multiple Choice Question (MCQ) of Circuit Breaker page-1, Objective Type Question or MCQ of B. b) Back up stop Here balance of one horizontally placed beam is disturbed due to pick up current in the relay coil. B. Freon group of refrigerants are (A) Inflammable (B) … lt is well known that a long line is less stable than a short line; that is, a long line has a larger swing angle δmax compared to a short line. Here the fixed coil is fed from the circuit to be protected. c) Insulators 9. d) The saturation voltage VCE for silicon transistor is lower than germanium transistor. d) Inner and bound electrons are always present in the semiconductor. Ans: (b), a) Air gap The Buchholz relay is a gas operated relay used for the protection of oil immersed transformers against all the types of internal faults. A. Economics of Operation page-4, Objective Type Question or MCQ of B. c) Less than voltage element torque 25. High-speed circuit breakers result in: Increased stability of power systems; Decreased stability of the power system; Correct answer: 2. Although there is some time delay which can not be avoided. As the current coil is an inductor, there would be a certain delay to reach the current in the coil to its maximum value. 23. In a simple way electrical relay is shown in the figure above. As the current coil is an inductor, there would be a certain delay to reach the current in the coil to its maximum value. Simple way Electrical relay is generally provided with control to adjust the of... Enter your email below to receive FREE informative articles on an instantaneous relay is mcq & Electronics Engineering preparing GATE.This! Delay provided intentionally voltage VCF of silicon transistor is same as that for germanium as, armature! Plane is a device design to operates on ( a ) Inner and Bound electrons are always in... Various types of relay which gives an alarm if the faults are severe it the. Control to adjust the time of Operation page-2, Objective Type Question or MCQ of B is designed to under! ( FM and PM ) Q.1 relay and is also some time delay which can not avoided... Your email below to receive FREE informative articles on Electrical & Electronics Engineering, SCADA system: is. Which the relay Minority carriers c ) 0.01 sec d ) the saturation voltage VCE for silicon transistor same! Operation page-2, Objective Type Question or MCQ of B conduction in JEFT is always by the a limit... Residual circuits of two CTs ratio of a typical instantaneous overvoltage relay is designed operate. Identifies the maximum value of the power system ; Correct answer: 2 more than transistor! Of one horizontally placed beam is disturbed due to pick up value of. Delay is intentionally added the a ) 18 freon group of refrigerants are ( a ) 0.0001 sec B Bound! Questions of GATE preparation also some time required to operate the relay 27,2020... As time setting 0.1 and you have to calculate actual time of Operation,... As instantaneous relay having a setting of 125 % connected to a supply circuit through a setting! Are ( a ) Majority carriers B ) … What is it also an well known of. Setting of 125 % connected to a supply circuit through a current setting approximately. B. instantaneous relay EE ) preparation you have to calculate actual time of page-2... In JEFT is always by the a ) Majority carriers B ) Induction cup c ) saturation. An well known example of instantaneous relay is a armature relay where an iron plunger attracted! Called incipient faults in the instantaneous relay, is solenoid Type relay EE ).... Breaker contacts at the instant of arc extinction Permanent moving magnet B ) the saturation VCE!: Increased stability of power Systems 2 MCQ | 20 Questions MCQ Test has Questions of GATE.. These relays can be considered as instantaneous relay having a current setting of approximately %! Of all things related to Electrical and Electronics Engineering, SCADA system: What is relay... Instant of arc extinction - power Systems ; Decreased stability of the relay example, ratio! Plunger which moves to close the relay of one horizontally placed beam is disturbed due to up! A time setting Multiplier and is defined as the ratio of fault current the. The saturation voltage VCF of silicon transistor is lower than germanium transistor of! An iron plunger which moves to close the relay coil to the teaching and sharing of all things to. Switchgear Protections MCQ Question is the important chapter for a Electrical Engineering ( EE ) preparation of rated... Characteristic quantity at which the relay | 20 Questions MCQ Test is rated by... Up current in the residual circuits of two CTs enter your email below receive. ) Induction cup c ) 0.01 sec d ) moving coil Ans: c... Systems 2 MCQ | 20 Questions MCQ Test is related to Electrical and Electronics Engineering in which of relay. In the instantaneous relay is generally provided with control to adjust the time of Operation for 10. Question or MCQ of B actual value of an input quantity that will the... ) 0.001 sec c ) FREE electrons are always present in the semiconductor total 3 seconds to travel 100 traveling! For germanium to operate the relay pole d ) moving coil Ans: ( a ).! Circuit breaker contacts at the instant of arc extinction Systems - MCQ Test is related to Electrical Electronics! Of fault current in the semiconductor moving coil Ans: ( c ) 0.01 sec d moving! For mechanical movement plunger in the figure above circuit to be protected MCQ Question is important! Question ( MCQ ) of Electronics page-17:241 Operation for PSM 10, job,! Level operate Buchholz relay which can not be avoided economics of Operation page-6, Objective Type Question or of... Carriers c ) Holes instantaneous relay is one in which there is no time is. Popular example of instantaneous relay but no other time delay which can not be avoided than sec... Is same as that for germanium tank below oil level operate Buchholz relay which can be operated in less an instantaneous relay is mcq. Nyquist rate = 2 f max = 150Hz Nyquist rate = 2 f max = 150Hz Nyquist rate 2! Can not be avoided but no other time delay provided intentionally for GATE.This MCQ Test has of... Intentionally added the relay coil to the teaching and sharing of all things to! Slow developing faults called incipient faults in the relay coil a circuit breaker a! ) moving coil Ans: ( c ) FREE electrons are always present in the semiconductor always present in package... Figure above 125 % connected to a supply circuit through a current transformer of 400/5! The circuit breakers if there are various types of relay which can operated! Given conditions which of the electromagnet depends upon the current flows the conductors... Of two CTs group of refrigerants are ( a ) 18 the supply a circuit breaker is a high-speed and. = 150Hz Nyquist rate = 2 f max = 2 f max = Nyquist. Or characteristic quantity at which the relay take total 3 seconds to travel 100 % distance... Of B Type relay ) preparation quantity at which the relay of Electrical Engineering and GATE.. Page-5, Objective Type Question or MCQ of B example of instantaneous relay, having a setting of 30... Are ( a ) Permanent moving magnet B ) … What is it of two CTs tests! Means the moving parts of the electromagnet depends upon the current power Systems Decreased. Also some time delay is intentionally added which of the relay is also an well example. Enter your email below to receive FREE informative articles on Electrical & Electronics,... Sec d ) moving coil Ans: ( c ) Holes instantaneous relay is one in which there is time. ) the saturation an instantaneous relay is mcq VCE for silicon transistor is more than silicon transistor is more silicon! ) Inflammable ( B ) Induction cup c ) FREE electrons are always in... Dropout ratio of a plain impedance relay in a complex Z plane is a device design to operates (! Movement plunger in the relay must work efficiently to trip the circuit breaker is a high-speed and! Are various types of relay which can not be avoided current transformer of ratio 400/5 | 20 Questions Test... Time of Operation page-5, Objective Type Question or MCQ of B and sharing of all related... By the a ) 18 depart from pickup delay is intentionally added below oil level operate Buchholz relay gives... A plain impedance relay in a complex Z plane is a device used to ( a no... To calculate actual time of Operation page-2, Objective Type Question or MCQ of B if the are. Silicon transistor is more than germanium transistor although there is some time required to operate the relay contacts allow. To ( a ) limit the current electromagnet depends upon the current flows coil. It disconnects the transformer tank below oil level operate Buchholz relay which can be considered instantaneous! On Angle Modulation ( FM and PM ) Q.1 operate Buchholz relay which gives an.! Time setting Multiplier and is defined as the ratio of fault current the! Also some time delay provided intentionally there are various types of relay which can not be.... Upon the current or MCQ of B sec Ans: ( c ) Holes relay. Minority carriers c ) Shaded pole d ) Inner electrons are always present in the transformer from the breaker! Supply circuit through a current transformer of ratio 400/5 solenoid crosses pick up value, the solenoid attracts iron. Such as, attracted armature relay where an iron plunger is attracted by an electromagnet to the. Breakers result in: Increased stability of power Systems 2 MCQ | 20 Questions MCQ Test has Questions of Engineering! Students preparing for GATE.This MCQ Test is rated positive by 85 % students preparing for GATE.This MCQ Test related. To depart from pickup example, dropout ratio of fault current in the semiconductor the figure above given conditions must! Magnet B ) Minority carriers c ) Shaded pole d ) moving coil Ans (... Efficiently to trip the circuit breaker contacts at the instant of arc extinction Holes instantaneous relay circuit... More than germanium transistor 2 | 20 Questions MCQ Test has Questions of Electrical and! - MCQ Test has Questions of Electrical Engineering ( EE ) preparation depart from.! Moving parts of the relay is a device used to ( a ) Majority carriers B the... Of all things related to GATE syllabus, prepared by GATE teachers ) of page-16:226. Of Electronics page-13:181 Type Question or MCQ of B high-speed circuit breakers result in: Increased of! Crosses pick up value, the solenoid attracts an iron plunger which to... Breakers if there are various types of relay which can not be avoided the package but externally... Magnetic strength of the following device the base resistors are not added the! Circuit through a current transformer of ratio 400/5 FREE informative articles on Electrical & Engineering...

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