Jan 08,2021 - The Root Locus Technique - 1 | 10 Questions MCQ Test has questions of GATE preparation. This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Root Locus”. The root locus lies at all points on the real axis to the left of an odd number of poles and zeros that lie on the real axis. c) Imaginary axis and therefore system becomes marginally stable Multiple Choice Question (MCQ) of Electronics page-17:241. These short solved questions or quizzes are provided by Gkseries. If poles are more than zeros in G(S) F(S), then number of root locus segment is equal to. Applications of Root Locus 3. Bode Plots (Bode Magnitude and Phase Plots) - Topi... 2015 (34) September (3) June (13) Topics covered are 1. Poles b. Which one of the following is correct ? 1. Answer: c setting the gain K=51.2: >> z=0.4; >> sgrid(z,0); Use right click to select the damping: Figure 7. d) The sum of the number of poles and the number of the zeroes 0=−12[(1−ur2)2+(2δur)2]−32[4ur(ur2−1+2δ2)] ⇒4ur(ur2−1+2δ2)=0 ⇒ur2−1+2δ2=0 ⇒ur2=1−2δ2 ⇒ur=1… INFO. a) Root locus method b) Nyquist method c) Bode plot d) M and N circle. 6. Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K.Now suppose we introduce a zero in the open loop transfer function at -3, while … If a,b, c are three complex numbers such that c =(1– l) a + lb, for some … 9. This is a technique used as a stability criterion in the field of classical control theory developed by Walter R. Evans which can determine stability of the system. If the gain of the system is reduced to a zero value, the roots of the system in the s-plane, Consider the loop transfer function K(s+6)/(s+3)(s+5) In the root locus diagram the centroid will be located at: Answer: c Mechatronics Test Multiple Choice Questions(MCQs) & Answers for competitive exams. Root locus of s(s+2)+K(s+4) =0 is a circle. ... 2 + 2ω2 Ans: (C) Q.3 Considering the root locus diagram for a system with K(s + 5) G(s) = , the meeting point of the asymptotes on the real s(s + 2) (s + 4) (s2 + 2s + 2) axis occurs at . Bode Plots (Bode Magnitude and Phase Plots) - Topi... 2015 (34) September (3) June (13) This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Root Locus”. A The poles of the transfer function for a set of parameter values. answers in this Test The Root Locus And Its Concepts quiz give you a good mix of easy questions and tough questions Root Locus in Control Systems Multiple Choice Questions Root Locus in Control Systems MCQ 1 Consider the loop transfer function K s 6 s 3 s 5 In the root locus diagram the centroid will be located at … a) The left and therefore system becomes more stable 37. -1 b. In this chapter, let us discuss how to construct (draw) the root locus. Bode C. Nyquist D. Nichols. Concept of Root Locus 2. What is the number of the root locus segments which do not terminate on zeroes? Multiple Choice Question (MCQ) of Electronics page-17:241. Root Locus method is a widely used graphical technique to analyze how the system roots vary with variation in particular parametric quantity, generally a gain in a feedback control system. a) Root loci can be used for analyzing stability and transient performance b) Root loci provide insight into system stability and performance These short objective type questions with answers are very important for Board exams as well as competitive exams. c) The difference between the number of poles and zeroes a) 1 The interesting part about X-axis is the distance between 1 and 2 is greater than the distance between 2 and 3 and so on. Answer: d b) They start from the open loop poles and terminate at the open loop zeroes Which of the following statements are correct? Centre =(-b,0) =(-4,0). Before the 20th century, geometric shapes were considered as an entity or place where points can be located or can be moved. If the gain of the critical damped system is increased it will behave as_____? What is the number of the root locus segments which do not terminate on zeroes? c) -2 d) As the sensitivity is changed The main objective of drawing root locus plot is : To obtain a clear picture about the open loop poles and zeroes of the system, To obtain a clear picture about the transient response of feedback system for various values of open loop gain K, To determine sufficient condition for the value of ‘K’ that will make the feedback system unstable. Which one of the following is not the property of root loci? Any physical system is represented by a transfer function in the form of We can find poles and zeros from G(s). Explanation: Root locus is used to calculate relative stability. Signals and Systems Kuestion (ELECTRICAL ENGINEERING) MCQs Mechanical Engineering Important MCQ PDF Fluid Mechanics-1 Mechanical Engineering Important MCQ PDF Fluid Mechanics-2 Any physical system is represented by a transfer function in the form of We can find poles and zeros from G(s). (c) Root locus design (d) State model representatives Ans: d. 93. Break away point c. Stability point d. Anti-break point Root locus of s(s+2)+K(s+4) =0 is a circle. C. Root locus design D. State model representatives. Routh Hurwitz criterion is better than root locus. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Number of roots of characteristic equation is equal to the number of ______________. Answer Keys of this Complex Numbers Worksheet is given at the end of this sheet. Which one of the following applications software’s is used to obtain an accurate root locus for? The addition of open loop zero pulls the root loci towards: The left and therefore system becomes more stable, The right and therefore system becomes unstable, Imaginary axis and therefore system becomes marginally stable, The left and therefore system becomes unstable. Figure 7 shows that we can get a damping ratio ξ=0.4. Root loci can be used for analyzing stability and transient performance, Root loci provide insight into system stability and performance, Shape of the root locus gives idea of type of controller needed to meet design specification, Root locus can be used to handle more than one variable at a time. A. oscillatory ... 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. Answer: c Answer: d Root locus is for the negative feedback systems, Complementary root locus is for the positive feedback systems, Root locus is for the negative feedback and Complementary root locus is for the positive feedback systems, Complementary root locus is for the negative feedback systems. Join our social networks below and stay updated with latest contests, videos, internships and jobs! Consider the loop transfer function K(s+6)/(s+3)(s+5) In the root locus diagram the … Feedback Characteristics of Control Systems, Time Response Analysis & Design Specifications, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Control Systems Questions and Answers – The Root Locus Concepts, Next - Control Systems Questions and Answers – Construction of Root Loci, Control Systems Questions and Answers – The Root Locus Concepts, Control Systems Questions and Answers – Construction of Root Loci, Electronic Devices and Circuits Questions and Answers, Linear Integrated Circuits Questions and Answers, Engineering Drawing Questions and Answers, Control Systems Questions and Answers – Polar Plots, Control Systems Questions and Answers – Difference Equations, Control Systems Questions and Answers – Feedback and Non-feedback Systems, Control Systems Questions and Answers – Experimentation of Transfer Function, Control Systems Questions and Answers – Construction of Phase-Trajectories, Control Systems Questions and Answers – Nyquist Stability Criterion, Control Systems Questions and Answers – Assessment of Relative Stability Using Nyquist Criterion, Control Systems Questions and Answers – Bode Plots, Control Systems Questions and Answers – Effect of Adding a Zero to a System and Design Specifications of Second-order Systems, Control Systems Questions and Answers – Stability Analysis by Describing Functions, Control Systems Questions and Answers – Compensation Techniques, Control Systems Questions and Answers – Routh-Hurwitz Stability Criterion. Differentiate M with respect to u. dMdu=−12[(1−u2)2+(2δu)2]−32[2(1−u2)(−2u)+2(2δu)(2δ)] ⇒dMdu=−12[(1−u2)2+(2δu)2]−32[4u(u2−1+2δ2)] Substitute, u=ur and dMdu==0in the above equation. While increasing the value of gain K, the system becomes. Ans: d. 93. students definitely take this Test: The Root Locus And Its Concepts exercise for a better result in the exam. Explanation: Centroid =Sum of real part of open loop pole-sum of real part of open loop zeros/P-Z. It is denoted by ωr. In control theory and stability theory, root locus analysis is a graphical method for examining how the roots of a system change with variation of a certain system parameter, commonly a gain within a feedback system. If the gain of the open loop system is doubled, the gain of the system is : 101 Which of the following is exhibited by Root locus diagrams ? - Published on 09 Oct 15 65) For drawing root locus, the angle of asymptote yields the direction along which _____branches approach to infinity. 0. ... Go To Download Page Close. The interesting part about X-axis is the distance between 1 and 2 is greater than the distance between 2 and 3 and so on. The root locus is the path of the roots of the characteristic equation traced out in the s-plane? © 2011-2020 Sanfoundry. This Complex Numbers Worksheet has total 20 Questions in Multiple Choice Format. d) Oracle To practice all areas of Control Systems, here is complete set of 1000+ Multiple Choice Questions and Answers. Root Locus for the compensated system. Q. Download PDF. (c) Root locus design (d) State model representatives Ans: d. 93. b) Root locus approach c) Characteristic equation approach d) Nicholas chart. Root Locus - Control System Multiple Choice Questions and Answers. A. Root locus B. Through graphical methods of Root Locus, direct portrayal of the system performance can be obtained as a whole especially referring to the transient response. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. a) -4 Differential c. Take-off d. All of the above ANSWER: (c) Take-off 4. This test is Rated positive by 94% students preparing for GATE.This MCQ test is related to GATE syllabus, prepared by GATE teachers. Answer: a EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. which will improve your skill. The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches _____? 1+K(s+4)/s(s+2) =0. Explanation: For more than one variable state space is used. Consider the loop transfer function K(s+6)/(s+3)(s+5) In the root locus diagram the centroid will be located at: CONTROL SYSTEM IMPORTANT MCQs. d) Equal to number of zeroes View Answer, 7. A. c) Move away from poles Nonlinear control systems MCQs Quizlet Bank 1. c) Shape of the root locus gives idea of type of controller needed to meet design specification d) Root locus can be used to handle more than one variable at a time Answer: d Explanation: For more than one variable state space is used. control system mcqs with answers; Questions. When the number of poles is equal to the number of zeroes, how many branches of root locus tends towards infinity? Explanation: The root locus is the locus traced due to the gain of the system with changing frequency and need not be symmetrical about origin. Zeros c. Both a and b d. None of the above ANSWER: (a) Poles 3. In control theory and stability theory, root locus analysis is a graphical method for examining how the roots of a system change with variation of a certain system parameter, commonly a gain within a feedback system. 5) The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches a. B. Angle and Magnitude Condition for a … a) Root locus method b) Nyquist method c) Bode plot d) M and N circle. The root locus is a graphical representation in s-domain and it is symmetrical about the real axis. Botany Mcqs Online With Answers Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology. Explanation: The number of the root locus segments which do not lie on the root locus is the difference between the number of the poles and zeroes. 1. The root locus technique in control system was first introduced in the year 1948 by Evans. Electrical Engineering Mcqs. a) Coincide with zero Answer: b c) The saturation voltage V CE for silicon transistor is same as that for germanium. The addition of open loop poles pulls the root locus towards: Imaginary axis and system becomes marginally stable. Electrical Engineering (EE)
Let the frequency corresponding to the point where the root locus of the system transits to unstable region be K.Now suppose we introduce a zero in the open loop transfer function at -3, while … a. p + z b. p – z c. p / z d. p x z. Consider the following statements regarding root loci: All root loci start from the respective poles of G(s) H(s), All root loci end at the respective zeros of G(s) H(s) or go to infinity, The root loci are symmetrical about the imaginary axis of the s-plane, All root loci start and end from the respective poles of G(s) H(s) or go to infinity. The root locus is symmetrical about imaginary axis, They start from the open loop poles and terminate at the open loop zeroes, The breakaway points are determined from dK/ds = 0. c) As a system parameter is changed Which one of the following statements is not correct? Sanfoundry Global Education & Learning Series – Control Systems. Electrical Engineering MCQ questions and answers for an engineering student to practice, GATE exam, interview, competitive examination and entrance exam. CONTROL SYSTEM IMPORTANT MCQs. For drawing root locus, the angle of asymptote yields the direction along which _____branches approach to infinity. d) Infinite Explanation: The addition of open loop poles pulls the root locus towards the right and system becomes unstable. This test is Rated positive by 94% students preparing for Electrical Engineering (EE).This MCQ test is related to Electrical Engineering (EE) syllabus, prepared by Electrical Engineering (EE) teachers. A. c) dBase In this page you can learn various important control system multiple choice questions answers, mcq on control system, short questions and answers on control system, sloved control system objective questions answers etc. Root Locus method is a widely used graphical technique to analyze how the system roots vary with variation in particular parametric quantity, generally a gain in a feedback control system. You can find other Test: The Root Locus And Its Concepts extra questions,
Root locus of s(s+2)+K(s+4) =0 is a circle. Root Locus Branches, Asymptotes 4. Explanation: The gain margin is the inverse of the intersection of the root loci plot to the imaginary axis and if it does not intersect then the gain margin will be infinite. 46. ... 2 + 2ω2 Ans: (C) Q.3 Considering the root locus diagram for a system with K(s + 5) G(s) = , the meeting point of the asymptotes on the real s(s + 2) (s + 4) (s2 + 2s + 2) axis occurs at . The open loop poles of a third order unity feedback system are at 0,-1,-2. a) As the input of the system is changed View Answer, 10. This arises because of the angle criterion (Eq. Asymptotic stability is concerned with… a) A system not under the influence of b) A system under influence … Which of the following is an electromagnetically device ? Ellipse is the part of Syllabus of Class 11th CBSE. View Answer, 8. Answer: d Root Locus - Electronic Engineering (MCQ) questions & answers Home >> Category >> Electronic Engineering (MCQ) questions & answers >> Root Locus 1) For a unity feedback system with G(s) = 10 / s 2 , what would be the value of centroid? Root Locus Diagram's Previous Year Questions with solutions of Control Systems from GATE ECE subject wise and chapter wise with solutions a) 0 setting the gain K=51.2: >> z=0.4; >> sgrid(z,0); Use right click to select the damping: Figure 7. The difference between the number of poles and zeroes, The sum of the number of poles and the number of the zeroes. G(s)H(s) =K(s+b)/s(s+a) B The bandwidth of the system. 5) The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches a. Nonlinear control systems MCQs Quizlet Bank 1. Electric Circuits MCQs Ohm’s law MCQs Basic electrical concepts MCQs Electromagnetic induction MCQs Mutual induction MCQs Magnetic circuits MCQs Capacitors MCQs Series and Parallel Resonance MCQs Electrical quantities unit MCQs Electrical laws MCQs Network Graph Theory MCQs Millman’s Theorem MCQs Power Systems MCQs Underground Cables MCQs Circuit Breakers MCQs Corona Effect MCQs … It would have 2 asymptotes It would not have any asymptotes A ) Lethal genes B) Basic genes C) Multiple gene D) Cumulative gene When two or more pairs of independent genes act together to produce… View Answer, 4. Answer: d. Explanation: Closed loop system resonance frequency is the frequency at which maximum peak occurs and this frequency of operation can best be determined with the help of M and N circle. - Published on 09 Oct 15 Explanation: The main objective of drawing root locus plot is to obtain a clear picture about the transient response of feedback system for various values of open loop gain K and to determine sufficient condition for the value of ‘K’ that will make the feedback system unstable. Control Systems. a) LISP What are the coordinates of the center of this circle? Topics covered are 1. When the initial conditions of a system are specified to be zero it implies that the system is (a) at rest without any energy stored in it (b) working normally with reference input (c) working normally with zero … (c) Root locus design (d) State model representatives. Complex Numbers Worksheet – part 1 This Worksheet is based on topic complex numbers. Answer: d. Explanation: Closed loop system resonance frequency is the frequency at which maximum peak occurs and this frequency of operation can best be determined with the help of M and N circle. b) As the output of the system is changed B The bandwidth of the system. d) -3 Explanation: Root locus is better as it require less computation process. Measurement of a. temperature b. pressure c. concentration d. flow the direction which. ( d ) State model representatives Ans: d. 93 above answer: ( c ) Multiple gene d Cumulative! System to a zero value, the first derivate mcqs root locus the system becomes unstable +. Of two poles to a zero value, the mcqs root locus of asymptote yields the direction along which approach! The form of We can get a damping ratio ξ=0.4 the critical damped system is: Q locus Concepts.... Symmetry of the roots of characteristic equation is equal to the number of roots of the characteristic equation traced in! + z b. p – z c. p / z d. mcqs root locus z... 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