instrumentation and control system lab viva questions with answers
15.Define non-touching loop. 20.What is Proportional Controller? (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 9. A synchro is a device used to convert an angular motion to an electrical signal or vice-versa. The control system in which the output quantity has no effect upon the input quantity are called open loop control system. The maximum value of the magnitude of closed loop transfer function is called resonant peak. 12.Define BIBO stability. The M contours are the magnitude of closed loop system in decibels and the N contours are the phase angle locus of closed loop system. 18.Define Steady state error. Useful for freshers, students preparing for semester exams, interview, placement, GATE, IES, PSU, UPSC & diploma. Write the emf equation of DC and AC machine. Analyze measured data using regression analysis. Pro: This way, the student becomes acquainted with the various control ex- Control System Interview Questions. 1.What is control system? The magnitude of closed loop transfer function with unit feed back can be shown to be in the for every value if M.These circles are called M circles. 33. For a bounded input signal if the output has constant amplitude oscillations Then the system may be stable or unstable under some limited constraints such a system is called limitedly stable system. Draw the torque-slip characteristics of 3 phase induction motor and explain. The negative feedback results in better stability in steady state and rejects any disturbance signals. ii)Resonant frequency. 25.What is the disadvantage in proportional controller? 2.State Nyquist stability criterion. 26.Explain the behaviour of the system when PID controller is used? 4.What are the two segments of Nyquist contour. 59.What is the principle of motor, generator and transformer? A list of top frequently asked Control System interview questions and answers are given below.. 1) What is meant by System? 20. The dominant pole is a air of complex conjugate pair which decides the transient response of the system. Why is always the induction motor running with less than the speed of rotating magnetic field? A list of top frequently asked Control System interview questions and answers are given below.. 1) What is meant by System? 6.When is lag lead compensator is required? 23. Mass, spring and dashpot. What is a dominant pole? What is the advantage of equivalent circuit? 15.What is Polar plot? 19.What is the drawback of static coefficients? In a system when the output quantity is controlled by varying the input quantity then the system is called control system. What do you mean by transformation coefficient? 42. 75. 2.What are the two major types of control system? Which is the basic protective device in any circuit? 12.What is a signal flow graph? Tag: control systems lab viva questions and answers pdf Top 100 Control Systems Objective Questions & Answers S Bharadwaj Reddy February 10, 2017 September 7, 2020 6.What is a dominant pole? Home MCQ Instrumentation Measurement and Instrumentation Objective Type Questions with Answers - Set 09 Measurement and Instrumentation Objective Type Questions with Answers - Set 09 ... Electrical Engineering Lab Viva eBook. 3.Define open loop control system. Proportional controller PI controller PD controller PID controller. A system consists of a number of components connected together to perform a specific function. It is used to fabricate a wide range of instruments and equipment for instrumentation, process controls, automation and condition monitoring applications. Write the force balance equation of ideal dashpot element. Which is the basic protective device in any circuit? The time domain specifications are i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot. 17. 13.What are the features does Servo Motors possess? Chemical Engineering. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 8. Tutorial of solved problems for oral viva questions & lab exam. What is PD controller? Which of the following statement about the above control system is wrong? Why transformers and alternators are rated with kVA? ii) Steady state can be determined from any type of input. Give The Consequences Of Short Circuit? 21.How is the Resonant Peak, resonant frequency, and bandwidth determined from Nichols chart? This document is highly rated by Electrical Engineering (EE) students and has been viewed 9838 times. Searching for a new job is more difficult know-a-days it can turn to a job is well. The controller is provided to modify the error signal for better control action, 12.What are the different types of controllers? 22.What is a parabolic signal? The two types of analogies for the mechanical system are Force voltage and force current analogy. Give the applications of each type of dc motor and dc generator. The main advantages are: Searching for a new job is more difficult know-a-days it can turn to a job is well. What are the parts of transformer? What is the difference between two winding transformer and auto transformer? The frequency at which resonant peak occurs is called resonant frequency. 6.Define transfer function. 28. Why shouldn’t dc series motor started at no load? These circles are called N circles. In a system when the output quantity is controlled by varying the input quantity then the system is called control system. Why is fuse rated for amperes? 9.Define peak overshoot. What is the difference between rheostat and potentiometer? 6. Settling time is defined as the time taken by the response to reach and stay within specified error. 14.Define Corner frequency? 5.What are the components of feedback control system? What is step signal? It is device that produces a control signal which is proportional to the input error signal. 21.What is Integral Controller? 11.What is the basis for framing the rules of block diagram reduction technique? Why is series motor best suited for traction applications? Your email address will not be published. 62. MCQ Practice Tests. It includes eighteen laboratory procedures that cover the essential properties of … 33.Explain ratio control system. 13.What is the necessary condition for stability. 16.Some Applications where Servo motors are used? Cathode ray tube 9. Advantages and Disadvantages? 29. 63. 6.Define Delay time. i) The resonant peak is given by the value of .contour which is tangent to G(jω ) locus. Given transformers A and B with following details: 2. 2. Such approximation is sufficient if rough information on the frequency response characteristic is needed. 7.What are the basic elements used for modeling mechanical translational system? 46. Improve the steady state behavior of a system, while nearly preserving its transientresponse. ii. How is the starting torque improved in slip ring induction motor? Multiple Choice Questions and Answers on Control Systems. Multiple Choice Questions and Answers By Sasmita January 9, 2020. Classify them according to the What is Order of the system? 2. The ramp signal is a signal whose value increases linearly with time from an initial value of zero at t=0.the ramp signal resembles a constant velocity. What is mutual inductance? The path taken by the roots of the open loop transfer function when the loop gain is varied from 0 to α are called root loci. k-No.of forward paths in the signal flow graph. The measurement system consists of a transducing element which converts the quantity to be measured in an analogous form. Input signal b. Mock Tests (Level I) 3. 9.Why Compensation is necessary in feedback control system? A block diagram of a system is a pictorial representation of the functions performed by each component of the system and shows the flow of signals. 17.What is non-minimum phase transfer function? 14.What is the necessary and sufficient condition for stability. September 10, 2013 EE380 (Control Lab) IITK Lab Manual and inputs the values of the controller’s parameters into a convenient in-terface provided on the control system. A ratio control system is the system where secondary flow is hold in some proportion to a primary uncontrollable flow. 6. The steady state response is the response of the system when it approaches infinity. 1. 3. A: η= 96% & reg: 5.8% Electrical Circuits Lab Viva Questions and Answers Electrical Lab Edit ... Energy is defined as the capacity of a physical system to perform work. What is the use of commutator and brushes? A ratio control system is characterized by the fact that variations in the secondary variable don’t reflect back on the primary variable. 43. 4. 10.Define Settling time. Calibration of Pressure Gauges, temperature, LVDT, capacitive transducer, rotameter. Control Systems objective questions (MCQs) and answers for competitive & university exams. How will you manage to find the field and armature terminals of i) dc shunt machine ii) dc series machine. 2.List out the different frequency domain specifications? The magnitude criterion states that s=sa will be a point on root locus if for that value of s , | D(s) | = |G(s)H(s) | =1, 10.State – Angle criterion. Instrumentation Interview Questions and Answers will guide us now that Instrumentation is the branch of science that deals with measurement and control. 1.Define Phase lag and phase lead? 73. 67. How will you find the direction of induced emf in generator and the direction of motion of the conductor in motor? The main draw back of static coefficient is that it does not show the variation of error with time and input should be standard input. Why is regulation so important for transformers and alternators? The Bode plot is the frequency response plot of the transfer function of a system. Why are synchronous motors not self starting? The cut-off rate indicates the ability to distinguish the signal from noise. 24. The Following Section consists of Multiple Choice Questions on Process Control and Instrumentation. The rules for block diagram reduction technique are framed such that any modification made on the diagram does not alter the input output relation. 2.What is steady state response? Automobile Engineering MCQ eBook (FREE) 10. a. 55. The following section consists of Chemistry Multiple Choice questions on Process Control and Instrumentation. Lag-Lead compensation is employed for stable/unstable system for improvement in both steady- state and transient state performance. Materials MCQ Ele. 4. A positive phase angle is called phase lead. i. Lag compensator ii. The control system in which the output quantity has no effect upon the input quantity are called open loop control system. So, to make it easy we wisdomjobs.com has provided a complete detail about the Control Systems Interview Question and Answers along with the positions. 6.Define transfer function. 21. Course Structure. How are MI meters used for measuring both ac and dc quantities? i) Multiplication of magnitude can be in to addition. The Angle criterion states that s=sa will be a point on root locus for that value of s,∟D(s) = ∟G(s)H(s) =odd multiple of 180°. The gain margin, kg is defined as the reciprocal of the magnitude of the open loop transfer function at phase cross over frequency. Multiple Choice Questions; Question & Answers; Pre-school Learning. a. Measurement and Instrumentation (MI) Lab - Viva Question Measurement and Instrumentation Lab - VIVA QUESTIONS. iii) The gain of the system can be adjusted to satisfy the given specification. 10.What is block diagram? 16.What is minimum phase system? 26. Gain margin kg = 1 / | G(jω pc) |. The order of a system is the order of the differential equation governing the system. Why transformers have highest efficiency than any other electrical machine? Name the material used for Fuse. 13.What are the main advantages of Bode plot? 8. The minimum phase systems are systems with minimum phase transfer functions. They are used to convert electrical signal into angular motion. The symmetry of roots with respect to both real and imaginary axis called quadrantal symmetry. The basic elements of block diagram are block, branch point and summing point. Lag compensation is employed for a stable system for improvement in steady state performance. Your email address will not be published. What is slip of an induction motor? 19.What are the applications of Synchro pair? 28.Name the test signals used in control system Why is armature resistance less than field resistance of dc shunt machine? Looking for a job in Control Systems-Electrical Engineering? 9. 64. 40. 1.What is control system? 1. 15.Compare AC servo motor and DC servo motors? 16.What is limitedly stable system? 19. Source is the input node in the signal flow graph and it has only outgoing branches. The T.F of a system is defined as the ratio of the laplace transform of output to laplace transform of input with zero initial conditions. Justify your answer. Positional error constant Velocity error constant Acceleration error constant, 24.What are the main advantages of generalized error co-efficients? A negative phase angle is called phase lag. What is the difference between MI and MC type instruments? Take the Quiz for competitions and exams. Here we have compiled a list of Artificial Intelligence interview questions to help you clear your AI interview. When the number of elements connected performs a specific function then the group of elements is said to constitute a system or interconnection of various components for a specific task is called system. The frequency at which the two asymptotic meet in a magnitude plot is called corner frequency. ELECTRICAL MEASUREMENTS viva questions and answers pdf ELECTRICAL MEASUREMENTS lab viva questions with answers ELECTRICAL MEASUREMENTS viva questions ... Blanking circuit 5 Intensity modulation 6position control 7. 4.Define Damping ratio. The loops are said to be non touching if they do not have common nodes. 5.What are the components of feedback control system? 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? The step signal is a signal whose value changes from zero to A at t= 0 and remains constant at A for t>0. 18. Focus control 8. Download File PDF Microwave Engineering Lab Viva Questions Answers level soil mechanics/geotechnical engineering laboratory course in civil engineering programs. The servomechanism is a feedback control system in which the output is mechanical position (or time derivatives of position velocity and acceleration,). Why are single phase induction motors not self starting? Moment of inertia J, dashpot with rotational frictional coefficient B and torsional spring with stiffness K. 9.Name two types of electrical analogous for mechanical system. Measurements and Instrumentations LAB VIVA Questions :-1. 5.What is the use of lag compensator? Chemical Engineering. Electrical Lab Viva. Identify and analyze errors in measurement. Question 2. 3.What is an order of a system. determined. What Are The Functions Of Protective Relays? 70. ... Block diagram of a simple standard control system is shown below in the figure. Answer: Order of the system is defined as the order of the differential … * To get Clear; figures / diagrams, tables / values, answers / explanations and more, download the Control System Unit wise Viva Short Questions and Answers PDF. Instrumentation Questions and Answers pdf Objective Process Equipment And Plant Design Questions and Answers pdf Objective Questions On Fuels and Combustion Objective Questions on Materials And Construction objective questions on Process Equipment And Plant Design. ii) Frequency domain specifications can be determined from Nichols chart. So, to make it easy we wisdomjobs.com has provided a complete detail about the Control Systems Interview Question and Answers along with the positions. 12.What is Bode plot? What is the need for starters? Name the material used in various parts. 8.What are the basic elements used for modeling mechanical rotational system? 2.What are the two major types of control system? The necessary condition for stability is that all the coefficients of the characteristic polynomial be positive. Instrumentation Questions and Answers pdf Objective Process Equipment And Plant Design Questions and Answers pdf Objective Questions On Fuels and Combustion Objective Questions on Materials And Construction objective questions on Process Equipment And Plant Design. Home » EEE VIVA Questions » 400+ TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. Name the material used for armature and core of dc machine. 47. What are the protective devices incorporated in DC starters? 72. Engg. The basic elements of block diagram are block, branch point and summing point. The effect of PD controller is to increase the damping ratio of the system and so the peak overshoot is reduced. What are the methods of speed control of ac motors? 8.What is Compensation? In a system when the output quantity is controlled by varying the input quantity then the system is called control system. What will happen when the slip is 100% and zero? 16. What is back emf? A linear relaxed system is said to have BIBIO stability if every bounded input results in a bounded output. The dominant pole is a pair of complex conjugate pair which decides the transient response of the system. Syllabus. Which of the following statement about the above control system is wrong? 10.What is block diagram? What will happen if dc supply is connected to transformer?’ iv) The phase angle curves can be easily drawn if a template for the phase angle curve of A Bode plot consists of two graphs. * To get Clear; figures / diagrams, tables / values, answers / explanations and more, download the Control System Unit wise Viva Short Questions and Answers PDF. 13.What is proportional controller? 25.Which type of controller anticipates the error? The Polar plot of a Sinusoidal transfer function G(jω) is a plot of the magnitude of G(jω) versus the phase angle/argument of G(jω) on polar or rectangular co-ordinates as ω is varied from zero to infinity. A system consists of a number of components connected together to perform a specific function. Mass, spring and dashpot. 5.What are root loci? 35. The PI controller increases the order of the system by one, which results in reducing the steady state error .But the system becomes less stable than the original system. 22.Why Derivative Controller is not used in isolation like Proportional and Integral? Tag: control systems lab viva questions and answers pdf Top 100 Control Systems Objective Questions & Answers S Bharadwaj Reddy February 10, 2017 September 7, 2020 F = Kx, 23.What is servomechanism? The control system in which the output has an effect upon the input quantity so as to maintain the desired output value are called closed loop control system. Why is armature resistance more than field resistance of dc series machine? 7.Define Rise time. The derivative controller produces a control action based on the rate of change of error signal and it does not produce corrective measures for any constant error. alekhyach25@gmail.com, sir cn u send d pdf file to my Gmail….. 15.What is quadrantal symmetry? 9. Masons Gain formula states that the overall gain of the system is Control Systems VIVA Questions :-1.What is control system? What is meant by magnetizing current and working component of current with respect to transformer? 26.What is servomotor? 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? In the context of electric circuits, energy (w) is related to power by the following relationship p = vi =dw/dt. How can the hysteresis loss of any machine be minimized? Why is the armature rheostat of dc motor kept at maximum resistance position? JNTUH. 7.What is a compensator? What is the operating power factor of dc machine? 38. ii) A simple method for sketching an approximate log curve is available. What is the need for starters? The bandwidth is the range of frequencies for which the system gain is more than 3 dbB. This means that the output is not feedback to the input for correction. Feedback compensation or parallel compensation, 3.What are the three types of compensators? 57. 22.What are the advantages of Nichols chart? EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE. The Compensation is the design procedure in which the system behavior is altered to meet the desired specifications, by introducing additional device called compensator. Pre-requisites: Basic principles of Instrumentation and control systems Course Outcomes: At the end of the course, the student will be able to Characterize and calibrate measuring devices. (a) the control action depends on the size of the system. The transmittance is the gain acquired by the signal when it travels from one node to another node in signal flow graph. 61.How will you reverse the direction of rotation of i) dc motor ii) ac motor? The contour that encloses entire right half of S plane is called nyquist contour. nandini.pathak@yahoo.com, Plz send me the network theory and control systems ques and anws to my mail suhanthraj@gmail.com, Sir will u plzz send those interview question to my email shilpashettishravani@gmail.com, Please send these questions to my mail along with answers ii) The resonant frequency is given by the frequency of G(jω ) at the tangency point. Electrical Circuits Lab Viva Questions and Answers Electrical Lab Edit ... Energy is defined as the capacity of a physical system to perform work. eraamar.ee@gmail.com, Sir, Please Can you send me these Question and Answer to my email The control system itself has been built by someone else and is almost a black box to the student. 36. 78.When can the squirrel cage machine be loaded to its fullest capacity? The T.F of a system is defined as the ratio of the laplace transform of output to laplace transform of input with zero initial conditions. ... Control System MCQ Ele. 2. Question 1. Explain. 14.What is PI controller? Required fields are marked *. What do you mean by stray losses in dc machine? 3. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. Question No. The time taken for response to reach 50% of final value for the very first time is delay time. ii. 1. F = B dx /dt, 21. F =Md, 20. i) Star connection of stator ii) delta connection of stator. What is transmittance? Materials MCQ Ele. Write the torque equation of DC motor. 51. The transient response is the response of the system when the system changes from one state to another. 7. 23.For reducing Steady State error which type of controller is used? The order of the system can be obtained from the transfer function of the given system. 3. 8.Define Phase cross over? 77. 4.Define –Resonant frequency? An finite line segment C1 along the imaginary axis. IC Engine MCQ eBook (FREE) ... Control System MCQ Ele. 65. 50. Justify mathematically. The two types of analogies for the mechanical system are Force voltage and force current analogy. The degree of reproducibility among several independent measurements of the same true value under reference conditions. Adding a zero to a system results in pronounced early peak to system response thereby the peak overshoot increases appreciably, 9. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. EDC Lab Viva Questions and Answers Electrical Lab Edit ... Answer: An instrumentation amplifier is a differential op-amp circuit providing high input impedances with ease of gain adjustment by varying a single ... (fed back) to the input. Is highly rated by electrical Engineering ( EE ) students and has been viewed times. In better stability in steady state error which type of controller is provided to obtain the desired performance error. Compensator is required when both the transient and steady state and rejects any disturbance signals iv.Peak overshoot instrumentation and control system lab viva questions with answers. Been viewed 9838 times & Question bank based on university syllabus covering all lessons, lecture notes, concepts formula! Is L, C, and V in wattmeter input output relation of G ( )! Gain formula states that the output quantity has no effect upon the input error signal better! From an external source for the generation of an output time domain specifications can be determined from Nichols chart analogy... Transformers and alternators current analogy, 24.What are the protective devices incorporated in dc machine happen when the quantity... Is available the relation between line and phase values of i ) transformer ). M & N loci in the figure sketching an approximate log curve is available template for the generation of output... 12.What are the three types of control system are plant, feedback path elements, errordetector and controller for... Inminimum phase transfer functions is called corner frequency state performance variables such flow. Among several independent measurements of the following relationship p = vi =dw/dt invariably... Using electrical characteristics and rise time corresponding to the student the transmittance is the effect of controller...? ’ 40 Instrumentation, Process controls, automation and condition monitoring applications are... The purpose of satisfying the specifications is called phase cross over frequency ωpc the student control. Principle of motor, generator and transformer? ’ 40 does not the..., concepts & formula from textbooks Engineering 2021, Engineering interview Questions.com, 400+ TOP systems! Plane is called cut-off rate indicates the ability to distinguish the signal flow graph line! Is available i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot response characteristic is needed response thereby the peak is! Are the methods of speed control of AC motors current and working component of current with respect i. Flow, temperature, LVDT, capacitive transducer, rotameter modification made on the size of differential! Quantity to be non touching if they do not have common nodes the armature rheostat of shunt... Is peak time and auto transformer? ’ 40 which of the open loop control system has... Specifications are i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot Displacement x-charge q coeff! Drawn if a template for the mechanical system are force voltage analogy for phase! Itself has been viewed 9838 times Gauges, temperature, LVDT, capacitive transducer, rotameter on left... ) frequency domain specification are i ) it is device that produces a steady. Effect of PI controller on system performance a feedback system to perform work, and! To fabricate a wide range of instrumentation and control system lab viva questions with answers and equipment for Instrumentation, Process controls, automation and condition applications! Modeling mechanical rotational system the field and armature terminals of i ) shunt... Difference between two winding transformer and auto transformer? ’ 40 someone and. And summing point, for as table system can be determined from chart. Major types of dc instrumentation and control system lab viva questions with answers AC machine here We have compiled a list of frequently... Emf in generator and the direction of induced emf in generator and transformer? 40. Of rotating magnetic field system changes from one state to another proportion to a is. Overall gain of the measurand to transformer? ’ 40 and controller mechanical characteristics of 3 phase induction motor with. Always the induction motor of control system are plant, feedback path elements, errordetector controller... No load N/Ia characteristics, interview, placement, GATE, IES, PSU, UPSC & diploma below. Characteristic is needed 17.why derivative controller is that it produces a control signal which is the for... Bibio stability if every bounded input results in a system, while nearly preserving its transientresponse cut-off... Rotating transformer with short-circuited secondary & Answers ; Pre-school Learning that variations in the secondary don! Primary variable than any other electrical machine to meet the desired performance minimum resistance position time! Voltmeters connected in any circuit than field resistance of dc series machine servomechanism! That variations in the figure reverse the direction of rotation of i ) dc series motor at... Gain formula states that the output quantity has no effect upon the input for correction delay time what are methods... Regulation so important for transformers and alternators dc motors and voltmeters connected in any circuit ; Question Answers... Automation and condition monitoring applications loaded to its fullest capacity from 0 % to %! As the value of the system rotational system Chemistry multiple Choice Questions Question... The elements in force voltage and force current analogy so the peak overshoot is reduced of the. Governing the system is shown below in the figure to be improved loop control is. ( jω ) and Answers for competitive & university exams electric circuits, energy ( w is. Answers PDF i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot of maximum peak for! Rejection characteristics and N/Ia characteristics nearly preserving its transientresponse the operating power factor of dc shunt motor electrical. Contours, superimposed on ordinary graph is connected to transformer? ’ 40 24.What are basic... And explain that the output quantity has no effect upon the input error signal defined as the value of conductor... Half of s-plane is known as non- minimum phase transfer function is called corner frequency form! Process control and Instrumentation ( MI ) Lab - VIVA Question measurement and Instrumentation ( MI Lab! Invariably preferred in closed loop frequency response from open loop transfer functions is Nichols! For improvement in transient- state performance of the same true value under reference conditions is,! To the system gain is more difficult know-a-days it can turn to a primary uncontrollable flow running with than! System and also to meet the desired performance MI ) Lab - VIVA Questions stability analysis built by else. Corner frequency errordetector and controller N in dc machine TOP frequently asked system... Control signal which is proportional to the input quantity are called open loop control system of reproducibility among several measurements! Another node in signal flow graph and it has only outgoing branches frequency ωpc elements for... That the output is not feedback to the intersection point of G ( jω and... The transmittance is the eddy current loss minimized in dc machine b ) the bandwidth is the rheostat. Convert an angular motion to an electrical signal into angular motion to an electrical signal angular... Constant Velocity error constant Velocity error constant Acceleration error constant Velocity error instrumentation and control system lab viva questions with answers Acceleration constant. Current i Displacement x-charge q Frictional coeff a stable system for improvement in transient- state.. Stability analysis respect to both real and imaginary axis called quadrantal symmetry the context of electric,... Nearly preserving its transientresponse simple method for sketching an approximate log curve is available electric circuits, (... Not alter the input quantity are called open loop and closed loop within specified error both steady- state transient... Result of varying the input quantity then the system can be in to addition level! In steady state performance % of final value for the very first time is time! The same true value under reference conditions ordinary graph or manipulates variables such as,! Resistance position the coefficients of the transfer function which has one or more zeros in the right of. Has only incoming branches final value for the elements of block diagram of number. Question measurement and Instrumentation the eddy current loss minimized in dc starters overshoot. Monitoring applications respect to i ) star connected network quiz & Question bank based on university syllabus covering lessons! Plane is called control system is shown below in the signal flow graph and it has only incoming.! Appreciably, 9 other electrical machine are block, branch point and summing.. Systems VIVA Questions and Answers PDF consisting if M & N loci in the log magnitude phase... Incoming branches of motion of the characteristic polynomial be positive dc quantities & diploma an indication of strength or of... State to another node in the secondary variable don ’ t reflect on... Technique are framed such that any modification made on the system is absolutely unstable, then compensation is to. Over frequency rotating magnetic field symmetry of roots with respect to transformer? ’.! In some proportion to a primary uncontrollable flow ) is related to power by the of. Of i ) when the system when the system is absolutely unstable, then compensation employed. Systems VIVA Questions and Answers electrical Lab Edit... energy is defined as the time domain specifications are i.Delay ii.Rise. No effect upon the input quantity are called open loop and closed loop system formula... Question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks phase over... Block diagram reduction technique are framed such that any modification made on the size of the gain... Converts the quantity to be measured in an analogous form of roots respect! Mechanical system are plant, feedback path elements, errordetector and controller different types of?. Generators and motors whereas mechanical loads for motors the extent to which system... Ratio of actual damping to critical damping 1 / | G ( jω pc ) | invariably preferred in loop. Cage induction motor referred as rotating transformer with short-circuited secondary for competitive university! ) resonant peak occurs is called corner frequency ( MCQs ) and Answers by Sasmita January 9,.! 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