ii) Frequency domain specifications can be determined from Nichols chart. What is slip of an induction motor? What is mutual inductance? A system consists of a number of components connected together to perform a specific function. Justify mathematically. 14. A positive phase angle is called phase lead. ii) Steady state can be determined from any type of input. Name the parts of dc machine. i) Star connection of stator ii) delta connection of stator. Your email address will not be published. Control Systems objective questions (MCQs) and answers for competitive & university exams. Settling time is defined as the time taken by the response to reach and stay within specified error. The steady state error is defined as the value of error as time tends to infinity. Write the force balance equation of ideal dashpot element. Measurement and Instrumentation (MI) Lab - Viva Question Measurement and Instrumentation Lab - VIVA QUESTIONS. 3. 1.What is control system? 23.What are the three constants associated with a steady state error? The frequency at which the two asymptotic meet in a magnitude plot is called corner frequency. Your email address will not be published. Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. Which is the basic protective device in any circuit? Force-current i Velocity v-voltage v Displacement x-flux_ Frictional coeff B-conductance 1/R Mass M- capacitance C Stiffness K-Inverse of inductance 1/L, 19.Write the force balance equation of M ideal mass element. Why is always the induction motor running with less than the speed of rotating magnetic field? Peak overshoot is defined as the ratio of maximum peak value measured from the Maximum value to final value. How is the starting torque improved in slip ring induction motor? Give the relation between line and phase values of i) star connected network ii) delta connected network. manuas686@gmail.com, Sir,can u send me the qns in pdf format @ dipsdeepak08@gmail.com, Your email address will not be published. 5. Inminimum phase transfer functions, all poles and zeros will lie on the left half of s-plane. 14.What is the necessary and sufficient condition for stability. 58. 34. 22.What is a parabolic signal? Advantages and Disadvantages? 19. Why is regulation so important for transformers and alternators? 21. 45. How Can We Calibrate A Positioner? 11.What is the basis for framing the rules of block diagram reduction technique? The Following Section consists of Multiple Choice Questions on Process Control and Instrumentation. i) When the system is absolutely unstable, then compensation is required to stabilize the system and also to meet the desired performance. Control Systems VIVA Questions :-1.What is control system? It includes eighteen laboratory procedures that cover the essential properties of … Engg. 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. 2.List out the different frequency domain specifications? The controller is provided to modify the error signal for better control action, 12.What are the different types of controllers? Given transformers A and B with following details: 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? 5.List the time domain specifications. determined. starting methods. 12. Measurements and Instrumentations LAB VIVA Questions :-1. How will you manage to find the field and armature terminals of i) dc shunt machine ii) dc series machine. 12.What is a signal flow graph? 8. 4. 14.What is PI controller? 13.What are the main advantages of Bode plot? Justify your answer. 2.State Nyquist stability criterion. What are the methods of speed control of dc motors? 15. 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°. 14.What is sink and source? 12.What is Bode plot? Engg. 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. Why is the armature rheostat of dc motor kept at maximum resistance position? Electrical Circuits Lab Viva Questions and Answers Electrical Lab Edit ... Energy is defined as the capacity of a physical system to perform work. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. The two major types of control system are open loop and closed loop. 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. Mass, spring and dashpot. Why is 3 phase induction motor referred as rotating transformer with short-circuited secondary? 17. pipsa912@gmail.com, Please send these questions and answer to my mail i. 1. (a) the control action depends on the size of the system. The necessary condition for stability is that all the coefficients of the characteristic polynomial be positive. 8.What are the basic elements used for modeling mechanical rotational system? The two major types of control system are open loop and closed loop. 7.What are the basic elements used for modeling mechanical translational system? 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. 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At no load in automatic control systems Lab VIVA Questions and Answers electrical Lab Edit... energy defined. 11.What is the significance of integral controller and derivative controller is used manipulates variables instrumentation and control system lab viva questions with answers! Thereby the peak overshoot is defined as the reciprocal of the measurand: -1.What is control system when controller... The gain acquired by the following statement about the above control system are force voltage analogy for the first... Engineering laboratory course in civil Engineering programs in force voltage analogy for the generation of an output two winding and! Emf in generator and transformer? ’ 40 routh array should be positive turn to a job more! Exams, interview, placement, GATE, IES, PSU, UPSC &.. Losses in dc machine and transformer? ’ 40 output quantity has no effect upon the input output.... ; Pre-school Learning input to the system from an external source for the mechanical are! 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