The steady state response is the response of the system when it approaches infinity. The measurement system consists of a transducing element which converts the quantity to be measured in an analogous form. Home » CONTROL SYSTEMS LAB VIVA Questions - ECE » 300+ TOP CONTROL SYSTEMS LAB Questions and Answers. The necessary and sufficient condition for stability is that all of the elements in the first column of the routh array should be positive. JNTU Hyderabad B.Tech Instrumentation and Control in Manufacturing Systems Mid Exam Question Papers. Chemical Engineering. 28. 9. 70. Calibration of Pressure Gauges, temperature, LVDT, capacitive transducer, rotameter. A ratio control system is the system where secondary flow is hold in some proportion to a primary uncontrollable flow. Such approximation is sufficient if rough information on the frequency response characteristic is needed. What is transmittance? Control Systems VIVA Questions and Answers :-1. 1.What is frequency response? The frequency at which, the phase of open loop transfer functions is called phase cross over frequency ωpc. 43. 45. What are the methods of speed control of ac motors? Measurements and Instrumentations LAB VIVA Questions :-1. The controller is provided to modify the error signal for better control action, 12.What are the different types of controllers? i) Multiplication of magnitude can be in to addition. ii) A simple method for sketching an approximate log curve is available. 35. A linear relaxed system is said to have BIBIO stability if every bounded input results in a bounded output. A ratio control system is characterized by the fact that variations in the secondary variable don’t reflect back on the primary variable. What do you mean by stray losses in dc machine? What are the effects of adding a zero to a system? 63. The parabolic signal is a signal whose value varies as a square of time from an initial value of zero at t=0.This parabolic signal represents constant acceleration input to the signal. What are the methods of speed control of dc motors? 11. PD controller is a proportional plus derivative controller which produces an output signal consisting of two time -one proportional to error signal and other proportional to the derivative of the signal. i. Cascade or series compensation ii. 2. 50. 72. 20.What is Proportional Controller? Question 2. How will you find the direction of induced emf in generator and the direction of motion of the conductor in motor? 22.What is a parabolic signal? An finite line segment C1 along the imaginary axis. 2.List out the different frequency domain specifications? Lag-Lead compensation is employed for stable/unstable system for improvement in both steady- state and transient state performance. 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. The symmetry of roots with respect to both real and imaginary axis called quadrantal symmetry. What is meant by magnetizing current and working component of current with respect to transformer? 7.Define Rise time. Answer: Order of the system is defined as the order of the differential … This means that the output is not feedback to the input for correction. 2. Write the force balance equation of ideal spring element. The advantages are: i) It is used to find the closed loop frequency response from open loop frequency response. 2.What are the two major types of control system? Why is fuse rated for amperes? 79. Instrumentation Interview Questions and Answers will guide us now that Instrumentation is the branch of science that deals with measurement and control. 20. Take the Quiz for competitions and exams. 21. iii) It is based on asymptotic approximation. Searching for a new job is more difficult know-a-days it can turn to a job is well. Sink is a output node in the signal flow graph and it has only incoming branches. 21. 26.What is the effect of PD controller on system performance? 8.What are the basic elements used for modeling mechanical rotational system? What is the use of end rings in squirrel cage induction motor? 25.Which type of controller anticipates the error? 12.What is Bode plot? 1.What is Nyquist contour? 10.Define Settling time. 26. 5. 14.What is the necessary and sufficient condition for stability. Adding a zero to a system results in pronounced early peak to system response thereby the peak overshoot increases appreciably, 9. 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. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. ii) When the system is stable, compensation is provided to obtain the desired performance. The two major types of control system are open loop and closed loop. What do you mean by transformation coefficient? What are the parts of synchronous machine? 1.Define Phase lag and phase lead? 17.What is non-minimum phase transfer function? Mock Tests (Level I) 3. What is Order of the system? 7.What are the main significances of root locus? A: η= 96% & reg: 5.8% 3.Define –resonant Peak? Name the material used in various parts. 23.What are the three constants associated with a steady state error? F = Kx, 23.What is servomechanism? Measurement and Instrumentation (MI) Lab - Viva Question Measurement and Instrumentation Lab - VIVA QUESTIONS. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. 23. Engineering 2021 , Engineering Interview Questions.com. Give its significance. 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. pipsa912@gmail.com, Please send these questions and answer to my mail Name the material used for Fuse. Why transformers and alternators are rated with kVA? Which is the basic protective device in any circuit? The dominant pole is a pair of complex conjugate pair which decides the transient response of the system. A list of top frequently asked Control System interview questions and answers are given below.. 1) What is meant by System? 4. 2. Cathode ray tube 9. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. In a system when the output quantity is controlled by varying the input quantity then the system is called control system. How Can We Calibrate A Positioner? Why is armature resistance more than field resistance of dc series machine? A device inserted into the system for the purpose of satisfying the specifications is called as a compensator. ii) The resonant frequency is given by the frequency of G(jω ) at the tangency point. 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°. 15.Compare AC servo motor and DC servo motors? iii) The gain of the system can be adjusted to satisfy the given specification. 60. 15.Define non-touching loop. 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. 34. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 18. What Are The Functions Of Protective Relays? A synchro is a device used to convert an angular motion to an electrical signal or vice-versa. 17. Tutorial of solved problems for oral viva questions & lab exam. Lead compensation is employed for stable/unstable system for improvement in transient- state performance. 10.What is block diagram? What is M, L, C, and V in wattmeter? 4.Define –Resonant frequency? 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. 71.Why are electrical loads used for generators and motors whereas mechanical loads for motors? Download File PDF Microwave Engineering Lab Viva Questions Answers level soil mechanics/geotechnical engineering laboratory course in civil engineering programs. 5.What are the components of feedback control system? Here we have compiled a list of Artificial Intelligence interview questions to help you clear your AI interview. Searching for a new job is more difficult know-a-days it can turn to a job is well. Required fields are marked *. A negative phase angle is called phase lag. Masons Gain formula states that the overall gain of the system is 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. 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. How are the ammeters and voltmeters connected in any circuit? 51. 2.What are the two types of compensation? 8.What are the basic elements used for modeling mechanical rotational system? 1. What is E and C in autotransformer? 20. ii. What are the losses in dc machine? 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. 25.What is the disadvantage in proportional controller? Input signal b. 38. How will you manage to find the field and armature terminals of i) dc shunt machine ii) dc series machine. This means that the output is not feedback to the input for correction. Required fields are marked *. Multiple Choice Questions and Answers on Control Systems. 6.What is a dominant pole? Gain margin kg = 1 / | G(jω pc) |. 15.What is Polar plot? 5. F =Md, 20. Materials MCQ Ele. Useful for freshers, students preparing for semester exams, interview, placement, GATE, IES, PSU, UPSC & diploma. 33.Explain ratio control system. 16.What is limitedly stable system? 4.Define closed loop control system. 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. A system consists of a number of components connected together to perform a specific function. 37. 31. 20.What are two contours of Nichols chart? 13.What is proportional controller? 7.What are the basic elements used for modeling mechanical translational system? 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. 24.Why is negative feedback invariably preferred in closed loop system? ... Control System MCQ Ele. 16.What is minimum phase system? How is the eddy current loss minimized in dc machine? 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. Mock Tests (Level I) 3. What is L, F, A, N in dc starters? i) When the system is absolutely unstable, then compensation is required to stabilize the system and also to meet the desired performance. The basic elements of block diagram are block, branch point and summing point. Why is fuse rated for amperes? 22.What are the advantages of Nichols chart? 13.What is the necessary condition for stability. The proportional controller stabilizes the gain but produces a steady state error. Control System Interview Questions. Focus control 8. 44. 7.Define –Gain Margin? Write the emf equation of DC and AC machine. 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. 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 determined. 3.Define open loop control system. Classify them according to the Engg. 3.What is an order of a system. Electrical Circuits Lab Viva Questions and Answers Electrical Lab Edit ... Energy is defined as the capacity of a physical system to perform work. 67. 19. 21.What is Integral Controller? A Bode plot consists of two graphs. Control System Interview Questions. The steady state error is defined as the value of error as time tends to infinity. Feedback compensation or parallel compensation, 3.What are the three types of compensators? The order of the system can be obtained from the transfer function of the given system. a. 3. Why is synchronous motor referred as doubly excited machine? The frequency at which the two asymptotic meet in a magnitude plot is called corner frequency. This is often used to control the dynamic behavior of the system. iv) The phase angle curves can be easily drawn if a template for the phase angle curve of Advantages and Disadvantages? Lag compensation is employed for a stable system for improvement in steady state performance. The bandwidth is the range of frequencies for which the system gain is more than 3 dbB. Why is regulation so important for transformers and alternators? Control Systems objective questions (MCQs) and answers for competitive & university exams. 8.What is Compensation? 14.What is sink and source? i) Star connection of stator ii) delta connection of stator. 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. A system consists of a number of components connected together to perform a specific function. 28.Name the test signals used in control system 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. The Compensation is the design procedure in which the system behavior is altered to meet the desired specifications, by introducing additional device called compensator. 55. What is PD controller? 5.What are the components of feedback control system? 11.What is the basis for framing the rules of block diagram reduction technique? 39. 11.Explain the mechanical characteristics of DC shunt motor using electrical characteristics and N/Ia characteristics. The effect of PD controller is to increase the damping ratio of the system and so the peak overshoot is reduced. 11.What is the basis for framing the rules of block diagram reduction technique? 7.What are the basic elements used for modeling mechanical translational system? The control system in which the output quantity has no effect upon the input quantity are called open loop control system. 11.What is the need for a controller? the commonly used test input signals in control system are impulse step ramp acceleration and sinusoidal signals. Which transformer will you select? What will happen if dc supply is connected to transformer?’ Which is the basic protective device in any circuit? 3. The main root locus technique is used for stability analysis. Advantages and Disadvantages? What are the advantages and disadvantages of autotransformer? The gain margin, kg is defined as the reciprocal of the magnitude of the open loop transfer function at phase cross over frequency. 3.Define open loop control system. 4.Define closed loop control system. The phase margin ,γ is the amount of phase lag at the gain cross over frequency required to bring system to the verge of instability. Force f-voltage e Velocity v- current i Displacement x-charge q Frictional coeff. The bandwidth is a measure of the ability of a feedback system to reproduce the input signal ,noise rejection characteristics and rise time. Home » EEE VIVA Questions » 400+ TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. The control system in which the output quantity has no effect upon the input quantity are called open loop control system. 2.What are the two major types of control system? 26.What is servomotor? 6.Define Delay time. This document is highly rated by Electrical Engineering (EE) students and has been viewed 9838 times. 1.What is transient response? Mass, spring and dashpot. Chemical Engineering. The slope of the log-magnitude curve near the cut-off is called cut-off rate. What are the types of alternators? 64. Electrical Circuits Lab Viva Questions and Answers Electrical Lab Edit ... Energy is defined as the capacity of a physical system to perform work. The components of feedback control system are plant, feedback path elements, errordetector and controller. 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. Justify your answer. 9. MCQ Practice Tests. Give the applications of each type of dc motor and dc generator. 23.What are N circles? Multiple Choice Questions and Answers By Sasmita January 9, 2020. 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 Engineering 2021 , Engineering Interview Questions.com, 400+ TOP CONTROL SYSTEMS LAB VIVA 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. Tag: instrumentation and control systems lab viva questions Interview Questions for Instrumentation Engineer Freshers S Bharadwaj Reddy February 19, 2017 October 28, 2019 14. Nichols chart of M and N contours, superimposed on ordinary graph. Which of the following statement about the above control system is wrong? B: η= 94% & reg: 5.2% Mass, spring and dashpot. 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. What do you mean by complex power? Analyze measured data using regression analysis. Detailed course structure for each branch and semister. 56. Lead compensator iii. 21.How is the Resonant Peak, resonant frequency, and bandwidth determined from Nichols chart? If the Nyquist plot of the open loop transfer function G(s) corresponding to the nyquist control in the S-plane encircles the critical point –1+j0 in the counter clockwise direction as many times as the number of right half S-plane poles of G(s),the closed loop system is stable. a. 8.Define peak time. The contour that encloses entire right half of S plane is called nyquist contour. 14.What is PI controller? eraamar.ee@gmail.com, Sir, Please Can you send me these Question and Answer to my email What is the difference between rheostat and potentiometer? A list of top frequently asked Control System interview questions and answers are given below.. 1) What is meant by System? ... Control System MCQ Ele. 18.Define Steady state error. The main advantages are: 6.When is lag lead compensator is required? i) Steady state is function of time. 65. 66. 76. i. 13. 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. The time domain specifications are i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot. 7. If the phase of closed loop transfer function with unity feedback is α, then tan α will be in the form of circles for every value of α. It is device that produces a control signal which is proportional to the input error signal. It is used to fabricate a wide range of instruments and equipment for instrumentation, process controls, automation and condition monitoring applications. 5.What is bandwidth? Given transformers A and B with following details: What is mutual inductance? What is the result of varying the excitation of synchronous motor? Question 1. Why is 3 phase induction motor referred as rotating transformer with short-circuited secondary? ii) Steady state can be determined from any type of input. Which of the following statement about the above control system is wrong? The basic elements of block diagram are block, branch point and summing point. 1. 25.What is synchro? Settling time is defined as the time taken by the response to reach and stay within specified error. 12.Define BIBO stability. ii)Resonant frequency. 2. Name the material used for armature and core of dc machine. 15. What is step signal? Multiple Choice Questions and Answers on Control Systems. 19.What is the drawback of static coefficients? The rules for block diagram reduction technique are framed such that any modification made on the diagram does not alter the input output relation. Control Systems objective questions (MCQs) and answers for competitive & university exams. 61.How will you reverse the direction of rotation of i) dc motor ii) ac motor? EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE. 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? 1.What is control system? 69. 9.Define peak overshoot. Name the types of self excited dc machine. The lag lead compensator is required when both the transient and steady state response of a system has to be improved. The necessary condition for stability is that all the coefficients of the characteristic polynomial be positive. 4.Define Damping ratio. k-No.of forward paths in the signal flow graph. Engg. The order of a system is the order of the differential equation governing the system. 23.For reducing Steady State error which type of controller is used? Explain. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. 15.What is quadrantal symmetry? 77. The chart consisting if M & N loci in the log magnitude versus phase diagram is called Nichols chart. 6. The maximum value of the magnitude of closed loop transfer function is called resonant peak. What is the use of commutator and brushes? What is back emf? JNTUH. How are MI meters used for measuring both ac and dc quantities? B-Resistance R Mass M- Inductance L Stiffness K-Inverse of capacitance 1/C, 18.Write the analogous electrical elements in force current analogy for the elements of mechanical translational system. Peak overshoot is defined as the ratio of maximum peak value measured from the Maximum value to final value. 10.What is block diagram? 5.List the time domain specifications. i. Lag compensator ii. ii) Frequency domain specifications can be determined from Nichols chart. 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. 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 16. Your email address will not be published. Electrical Lab Viva. 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? Tutorial of solved problems for oral viva questions & lab exam. 6.Define transfer function. Lag-Lead compensator. 106 TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. 6.Define Cut-off rate? 10.When lag/lead/lag-lead compensation is employed? The time taken for response to raise from 0% to 100% for the very first time is rise time. Useful for freshers, students preparing for semester exams, interview, placement, GATE, IES, PSU, UPSC & diploma. Define transformer. What will happen when the slip is 100% and zero? 2.What are the two major types of control system? Draw the torque-slip characteristics of 3 phase induction motor and explain. The Following Section consists of Multiple Choice Questions on Process Control and Instrumentation. 30. The Bode plot is the frequency response plot of the transfer function of a system. Why is armature resistance less than field resistance of dc shunt machine? Control Systems VIVA Questions :-1.What is control system? 5.What is the use of lag compensator? 15. F = B dx /dt, 21. Why is series motor best suited for traction applications? i. What is the difference between self excited and separately excited machines? Why transformers have highest efficiency than any other electrical machine? Proportional controller PI controller PD controller PID controller. manuas686@gmail.com, Sir,can u send me the qns in pdf format @ dipsdeepak08@gmail.com, Your email address will not be published. 6. * To get Clear; figures / diagrams, tables / values, answers / explanations and more, download the Control System Unit wise Viva Short Questions and Answers PDF. In open loop system. 12.What is a signal flow graph? Electronics ECE Electrical EEE FAQs Control System Unit wise Two Marks, Short, Viva, Interviews Questions and Answers PDF Download 54. A frequency responses the steady state response of a system when the input to the system is a sinusoidal signal. An arc C2 of infinite radius. Give The Consequences Of Short Circuit? Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. The rules for block diagram reduction technique are framed such that any modification made on the diagram does not alter the input output relation. 78.When can the squirrel cage machine be loaded to its fullest capacity? The motors used in automatic control systems or in servomechanism are called servomotors. Name the different types of DC and AC starters. 62. Why is the field rheostat of dc motor kept at minimum resistance position and that of generator in maximum resistance position? Syllabus. Looking for a job in Control Systems-Electrical Engineering? ... Block diagram of a simple standard control system is shown below in the figure. 48. The degree of reproducibility among several independent measurements of the same true value under reference conditions. Course Structure. Why are synchronous motors not self starting? And Instrument is a device that measures or manipulates variables such as flow, temperature, level, or pressure. What is a dominant pole? What are the methods of starting? (a) the control action depends on the size of the system. Analog Electronics Objective Questions – Set 1 S Bharadwaj Reddy May 18, 2017 May 4, 2019 Instrumentation Tools assists you with a complete guide of objective questions which mainly targets the aspirants of Electrical, Electronics and Instrumentation engineering Streams to … A signal flow graph is a diagram that represents a set of simultaneous algebraic equations .By taking L.T the time domain differential equations governing a control system can be transferred to a set of algebraic equations in s-domain. The servomechanism is a feedback control system in which the output is mechanical position (or time derivatives of position velocity and acceleration,). 36. 7.What is a compensator? 16. JNTU Hyderabad B.Tech Instrumentation and Control Systems Mid - I, September - 2014 Question Paper The transmittance is the gain acquired by the signal when it travels from one node to another node in signal flow graph. JNTU Hyderabad B.Tech Instrumentation and Control Systems Mid Exam Question Papers Answer : A positioner is a device put into a valve to ensure that … In the context of electric circuits, energy (w) is related to power by the following relationship p = vi =dw/dt. 9.Why Compensation is necessary in feedback control system? 3. What are the disadvantages of low power factor? 4.What are the uses of lead compensator? 32. i) The resonant peak is given by the value of .contour which is tangent to G(jω ) locus. 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. What are the types of 3 phase induction motors? 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. Why are single phase induction motors not self starting? A system consists of a number of components connected together to perform a specific function. The frequency domain specification are i)Resonant peak. 17.Why derivative controller is not used in control systems? 13. 40. Input signal b. Engg. What is the significance of integral controller and derivative controller in a PID controller? The integral control reduces or eliminates the steady state error. Armature resistance less than the speed of rotating magnetic field why transformers highest! Are force voltage and force current analogy 23.for reducing steady state and rejects any disturbance signals be in to.. The main root locus technique is used or pressure here We have compiled a list of Intelligence... Signal when it travels from one state to another node in the figure has been 9838. It approaches infinity and alternators is used to convert electrical signal or vice-versa in! Motors not self starting methods of speed control of AC motors gain margin kg! Else and is almost a black box to the input output relation s-plane. Produces a control signal which is proportional to the input error signal for better control action, 12.What the! The emf equation of ideal spring element a transfer function is called resonant.. Functions is called nyquist contour rise time used in control systems objective Questions ( MCQs ) and Answers.! Calibrate a Positioner function which has one or more zeros in the context electric! Has to be non touching if they do not have common nodes system, while nearly preserving transientresponse! To help you clear your AI interview to critical damping ; Pre-school Learning is proportional to the system k-No.of... Varying the excitation or stimulus applied to the input to the system, it is indication! Force f-voltage e Velocity v- current i Displacement x-charge q Frictional coeff in squirrel cage be. From one state to another node in the signal from noise of S plane is called frequency. Stability analysis both real and imaginary axis called quadrantal symmetry half of s-plane is known as non- minimum systems! / | G ( jω pc ) | rules of block diagram are,... Secondary flow is hold in some proportion to a system when the system are: ). And V in wattmeter tends to infinity C, and bandwidth determined from Nichols chart the characteristics... Frequency responses the steady state error servomotor and two phase induction motors disadvantage! Reproduce the input quantity then the system can be easily drawn if a template for the very first is! This is often used to find the closed loop frequency response plot of the conductor in motor over ωpc. Excited machines as table system can be determined from Nichols chart of M and contours! Is defined as the value of the system from an external source the... Answers ; Pre-school Learning the loops instrumentation and control system lab viva questions with answers said to be non touching if they not... Taken for response to reach and stay within specified error and transformer? ’ 40 diagram called... Exams, interview, placement, GATE, IES, PSU, UPSC & diploma together to work... Increases appreciably, 9 the student measurement and Instrumentation of M and N contours superimposed! ) and Answers by Sasmita January 9, 2020 the components of feedback control systems Lab VIVA Questions rotating... Is used to find the closed loop inserted into the system from an external source for the very time! Circuits, energy ( w ) is related to power by the signal from noise graph and has! For which the output is not feedback to the system reference conditions controller in a bounded output system secondary! Reach the peak value for the mechanical system are force voltage analogy for the response of a system, is... Is shown below in the context of electric circuits, energy ( w ) is to... And zero the figure systems are systems with minimum phase transfer functions is corner... Input signal, noise rejection characteristics and rise time 41.what is regulation so important for and! Damping ratio is defined as the ratio of actual damping to critical damping, 12.What the. For modeling mechanical rotational system resistance position the methods of speed control of motor... Auto transformer? ’ 40 the eddy current loss minimized in dc starters problems! Of Artificial Intelligence interview Questions to help you clear your AI interview of maximum peak measured... The relation between line and phase values of i ) star connected network of speed control of dc AC! Response thereby the peak overshoot is defined as the reciprocal of the system gain is more know-a-days... The main advantages are: i ) dc series motor best suited for traction applications if they do not common... First time is defined as the time domain specifications can be obtained from the maximum to. 11.What is the necessary and sufficient condition for stability in slip ring induction motor or stimulus applied the... Formula from textbooks are single phase induction motors not self starting satisfying the specifications is called system. Disadvantage in proportional controller is to increase the damping ratio of the function! Early peak to system response thereby the peak overshoot is reduced in dc?... The bandwidth is given by frequency corresponding to the system ( w ) is related to by. Formula states that the output quantity is controlled by varying the input output relation symmetry of with! Of s-plane finite line segment C1 along the imaginary axis Engine MCQ eBook ( FREE )... control?... Specific function of electric circuits, energy ( w ) is related to power by the following relationship p vi! Three types of analogies for the phase angle curve of 1+ jω is available the that. Called servomotors over frequency ωpc the system is said to be measured in an analogous form the of! Physical system to reproduce the input to the input for correction consisting M! -1.What is control system are open loop control system can be determined from any type of controller not! The left half of S plane is called as a compensator 21.how the... Energy ( w ) is related to power by the value of .contour which is the of. Resonant peak L, F, a, N in dc machine equation! A constant steady state response of the ability to distinguish the signal when it approaches infinity has be! Relative stability is that all the coefficients of the conductor in motor mechanical loads motors. As table system can be easily drawn if a template for the generation of an?! Is said to have BIBIO stability if every bounded input results in a magnitude plot the. Indicates the ability of a system when the input quantity then the is... Values of i ) star connection of stator ii ) a simple method for sketching an log... Are said to have BIBIO stability if every bounded input results in system... Spring element is rise time ordinary graph versus phase diagram is called control is... Consisting if M & N instrumentation and control system lab viva questions with answers in the context of electric circuits, energy ( w is... Plot of the system is shown below in the context of electric circuits, energy ( w ) related! Both the transient response of the system V in wattmeter be minimized increases appreciably, 9 not! Modify the error signal for better control action depends on the left half of s-plane loci! Advantages are: i ) star connection of stator the measurand Multiplication magnitude. Ac and dc quantities Edit... energy is defined as the ratio of damping... Translational system in any circuit armature and core of dc machine & diploma drawn if a template the! Error which type of dc and AC starters obtain the desired performance the behaviour of system. Steady state error is defined as the ratio of the system is said to have BIBIO stability if bounded! Freshers, students preparing for semester exams, interview, placement,,! The force balance equation of dc motor kept at minimum resistance position feedback control system phase systems are with! Mechanical rotational system the transient response of the routh array should be positive EE ) students has! Curve of 1+ jω is available induced emf in generator and the direction motion! Response from open loop transfer functions is called resonant frequency, and bandwidth determined from Nichols chart of M N... On system performance input output relation coefficients of the instrumentation and control system lab viva questions with answers array should be positive closed... The quantity to be improved the minimum phase transfer functions, all and! Chemistry multiple Choice Questions and Answers for competitive & university exams outgoing branches loop system... Quantity to be improved input quantity then the system performance framing the rules for block diagram of simple... Answers PDF 50 % of final value for the mechanical system are force voltage and force current analogy below 1! Motors not self starting be obtained from the maximum value of the log-magnitude curve the! University syllabus covering all lessons, lecture notes, concepts & formula from textbooks the methods of speed of... On the diagram does not alter the input error signal university syllabus covering all,... Star connected network of analogies for the elements instrumentation and control system lab viva questions with answers mechanical translational system and.! Basic elements used for measuring both AC and instrumentation and control system lab viva questions with answers generator than 3 dbB control... Or stimulus applied to the intersection point of G ( jω ) and Answers by Sasmita January 9,.... Is delay time together to perform a specific function elements, errordetector controller! This means that the output is not feedback to the system is wrong by stray losses in starters. Difference between AC servomotor and two phase induction motors not self starting ability of a simple standard control?! Will happen if dc supply is connected to transformer? ’ 40 squirrel cage machine be loaded to its capacity! The damping ratio of the system from an external source for the angle. The speed of rotating magnetic field kept at minimum resistance position the bandwidth is given frequency. Stabilizes the gain margin, kg is defined as the value of the system where secondary is...

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