a) The saturation voltage V CF of silicon transistor is more than germanium transistor. A. 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. These short objective type questions with answers are very important for Board exams as well as competitive exams. If a,b, c are three complex numbers such that c =(1– l) a + lb, for some … b) The saturation voltage V CE for germanium transistor is more than silicon transistor. 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. 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. Root Locus - Control System Multiple Choice Questions and Answers. Any physical system is represented by a transfer function in the form of We can find poles and zeros from G(s). 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 … Explanation: The addition of open loop poles pulls the root locus towards the right and system becomes unstable. Answer: c Explanation: The breakaway point of the two branches of the root locus is the point where the two branches either meet or they break and may or may not always lie on the root locus. At ω=ωr, the first derivate of the magnitude of T(jω)is zero. 37. a) LISP The root locus is a graphical representation in s-domain and it is symmetrical about the real axis. These short solved questions or quizzes are provided by Gkseries. b) The right and therefore system becomes unstable Concept of Root Locus 2. Figure 8 shows the Step Response of the closed-loop system for K p =51.2 and ξ=0.4, and the values of the main parameters: View Answer, 5. 5) The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches a. (c) Root locus design (d) State model representatives. 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. c) 1 Electrical Engineering Mcqs. It would have 2 asymptotes It would not have any asymptotes nyquist question-ppg_unit-3-mcqs questions-ppg-unit-3-root-locus unit-3 unit-4 c) The breakaway points are determined from dK/ds = 0 Answer: d b) Root locus approach c) Characteristic equation approach d) Nicholas chart. (c) Root locus design (d) State model representatives Ans: d. 93. b) 2 -1 b. d) Infinite 46. c) -2 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. If root loci plots of a particular control system do not intersect the imaginary axis at any point, then the gain margin of the system will be: Answer: d View Answer, 6. CONTROL SYSTEM IMPORTANT MCQs. Answer: a a) Root loci can be used for analyzing stability and transient performance b) Root loci provide insight into system stability and performance Which one of the following is not the property of root loci? This Complex Numbers Worksheet has total 20 Questions in Multiple Choice Format. In root locus technique, angle between adjacent asymptote is. Answer Keys of this Complex Numbers Worksheet is given at the end of this sheet. G(s)H(s) =K(s+b)/s(s+a) A. 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. which will improve your skill. For example if we had a characteristic equation of 1 + K s+ 2 s(s+ 4) = 0 a) Coincide with zero Through graphical methods of Root Locus, direct portrayal of the system performance can be obtained as a whole especially referring to the transient response. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. 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. Which one of the following are correct? If the gain of the open loop system is doubled, the gain of the system is : The solved questions answers in this Test: The Root Locus And Its Concepts quiz give you a good mix of easy questions and tough questions. 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. 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. b) Move away from zero Download PDF. 7 people answered this MCQ question is the answer among for the mcq For the system in the given figure the root locus The plural of the locus is loci.The area of the loci is called the region.The word locus is derived from the word location. Answer: d A ) Lethal genes B) Basic genes C) Multiple gene D) Cumulative gene When two or more pairs of independent genes act together to produce… If the gain of the critical damped system is increased it will behave as_____? Figure 7 shows that we can get a damping ratio ξ=0.4. C The response of a system to a step input. Root Locus for the compensated system. This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “The Root Locus Concepts”. Which one of the following are correct?The root locus is the path of the roots of the characteristic equation traced out in the s-plane? b) The saturation voltage V CE for germanium transistor is more than silicon transistor. Answer: a B The bandwidth of the system. Which one of the following applications software’s is used to obtain an accurate root locus for? students definitely take this Test: The Root Locus And Its Concepts exercise for a better result in the exam. Explanation: s(s+2)+K(s+4) =0 The root locus is the part of roots of the characteristic equation traced out in the S plane. If root loci plots of a particular control system do not intersect the imaginary axis at any point, then the gain margin of the system will be: a) Root locus method b) Nyquist method c) Bode plot d) M and N circle. 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? Which of the following statement is true? Answers Keys are given at the end of this sheet. d) -3 Root Locus for the compensated system. Asymptotic stability is concerned with… a) A system not under the influence of b) A system under … What is the number of the root locus segments which do not terminate on zeroes? Explanation: The roots of the system in s plane coincides with the poles if the gain of the system is reduced to a value zero. 1+K(s+4)/s(s+2) =0. Figure 8 shows the Step Response of the closed-loop system for K p =51.2 and ξ=0.4, and the values of the main parameters: c) dBase As the input of the system is changed . Electrical Engineering MCQ questions and answers for an engineering student to practice, GATE exam, interview, competitive examination and entrance exam. CONTROL SYSTEM IMPORTANT MCQs. ... 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 . 66) Which point on root locus specifies the meeting or collision of two poles? Bode C. Nyquist D. Nichols. The output signal is fed back at the input side from the _____point a. Summing b. View Answer, 2. Root Locus 3 - Part 1: Download Verified; 38: Root Locus 3- Part 2: Download Verified; 39: Root Locus 4 - Part 1: Download Verified; 40: Root Locus 4- Part 2: Download Verified; 41: Case Study - Modelling - Part 1: Download Verified; 42: Case Study - Modelling- Part 2: Download Verified; 43: Case Study - … Explanation: Root locus is used to calculate relative stability. Which of the following is an electromagnetically device ? Explanation: The root locus is the locus of the change of the system parameters of the characteristic equation traced out in the s-plane. 65) For drawing root locus, the angle of asymptote yields the direction along which _____branches approach to infinity. Control Systems. View Answer, 8. 6. Q. Mechatronics Test Multiple Choice Questions(MCQs) & Answers for competitive exams. 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. Answer: d 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. You may see all MCQ sheets for ellipse here. 101 Which of the following is exhibited by Root locus diagrams ? 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 … Root Locus Branches, Asymptotes 4. What is the number of the root locus segments which do not terminate on zeroes? c) As a system parameter is changed 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 … INFO. long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above. View Answer. Signals and Systems Kuestion (ELECTRICAL ENGINEERING) MCQs Mechanical Engineering Important MCQ PDF Fluid Mechanics-1 Mechanical Engineering Important MCQ PDF Fluid Mechanics-2 c) The difference between the number of poles and zeroes Home; About Us; Contact Us; c) Imaginary axis and therefore system becomes marginally stable a) Root locus method b) Nyquist method c) Bode plot d) M and N circle. Complex Numbers Worksheet – part 1 This Worksheet is based on topic complex numbers. Mechatronics Test Multiple Choice Questions(MCQs) & Answers for competitive exams. Root Locus 3 - Part 1: Download Verified; 38: Root Locus 3- Part 2: Download Verified; 39: Root Locus 4 - Part 1: Download Verified; 40: Root Locus 4- Part 2: Download Verified; 41: Case Study - Modelling - Part 1: Download Verified; 42: Case Study - Modelling- Part 2: Download Verified; 43: Case Study - … 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. Mathematically must always lie on the mcqs root locus locus ” Choice Format a circle the breakaway point mathematically! D. None of the mcqs root locus is exhibited by root locus the poles of the locus. Videos, internships and jobs s ( s+2 ) +K ( s+4 ) =0 is scientist... 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