What will happen if dc supply is connected to transformer?’ What is M, L, C, and V in wattmeter? 2. Control System Interview Questions. 44. Mass, spring and dashpot. 1+ jω is available. Positional error constant Velocity error constant Acceleration error constant, 24.What are the main advantages of generalized error co-efficients? Focus control 8. The negative feedback results in better stability in steady state and rejects any disturbance signals. What is LPF, UPF and ZPF? * To get Clear; figures / diagrams, tables / values, answers / explanations and more, download the Control System Unit wise Viva Short Questions and Answers PDF. 73. * To get Clear; figures / diagrams, tables / values, answers / explanations and more, download the Control System Unit wise Viva Short Questions and Answers PDF. 78.When can the squirrel cage machine be loaded to its fullest capacity? 58. Required fields are marked *. What do you mean by complex power? 1.Define Phase lag and phase lead? 9.Define peak overshoot. 19.What are the applications of Synchro pair? 4.What are the uses of lead compensator? 1.What is control system? The slope of the log-magnitude curve near the cut-off is called cut-off rate. 74.Given 4 terminals without indication. What are the parts of synchronous machine? What do you mean by stray losses in dc machine? 41.What is regulation with respect to i)transformer ii)alternator The transient response is the response of the system when the system changes from one state to another. What will happen when the slip is 100% and zero? The effect of PD controller is to increase the damping ratio of the system and so the peak overshoot is reduced. 14.What is the difference between AC servomotor and two phase induction motors? 5. How are MI meters used for measuring both ac and dc quantities? A negative phase angle is called phase lag. iii) The bandwidth is given by frequency corresponding to the intersection point of G(jω ) and –3dB M-contour. Tutorial of solved problems for oral viva questions & lab exam. 35. i. 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. 13.What is proportional controller? Advantages and Disadvantages? This means that the output is not feedback to the input for correction. Name the material used for Fuse. 16. 9. What are the various types of transformer? What is PD controller? 6. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 23.What are the three constants associated with a steady state error? 5. ... Control System MCQ Ele. The degree of reproducibility among several independent measurements of the same true value under reference conditions. Electronics ECE Electrical EEE FAQs Control System Unit wise Two Marks, Short, Viva, Interviews Questions and Answers PDF Download What do you mean by power frequency? eraamar.ee@gmail.com, Sir, Please Can you send me these Question and Answer to my email 67. How is the eddy current loss minimized in dc machine? 36. Force f-voltage e Velocity v- current i Displacement x-charge q Frictional coeff. Classify them according to the 70. Lag compensation is employed for a stable system for improvement in steady state performance. 20. 21.How is the Resonant Peak, resonant frequency, and bandwidth determined from Nichols chart? Useful for freshers, students preparing for semester exams, interview, placement, GATE, IES, PSU, UPSC & diploma. 7.What are the basic elements used for modeling mechanical translational system? A system consists of a number of components connected together to perform a specific function. 4.Define closed loop control system. A system consists of a number of components connected together to perform a specific function. 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 is step signal? EXPNO.1 MEASUREMENT OF RESISTANCE USING WHEATSTONE BRIDGE. 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. 47. 57. The order of a system is the order of the differential equation governing the system. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. The Bode plot is the frequency response plot of the transfer function of a system. a. How can the hysteresis loss of any machine be minimized? 30. The cut-off rate indicates the ability to distinguish the signal from noise. Measurement and Instrumentation (MI) Lab - Viva Question Measurement and Instrumentation Lab - VIVA QUESTIONS. 63. 33.Explain ratio control system. What is the difference between self excited and separately excited machines? Input signal b. Why is synchronous motor referred as doubly excited machine? / | G ( jω ) locus variables such as flow, temperature, LVDT, capacitive transducer,.... The order of a feedback system to perform a specific function... control system is the difference between winding! Closed loop frequency response one state to another node in the secondary variable don ’ t dc machine... And zero pair which decides the transient response is the frequency response from open loop transfer function the... Deviates from the true value of error as time tends to infinity if &... 59.What is the difference between AC servomotor and two phase induction motor are! Interview Questions.com, 400+ TOP control systems objective Questions ( MCQs ) and Answers are given below 1. Provided to modify the error signal 1+ jω is available the symmetry of roots respect. Which type of input slope of the open loop control system system when the system can be drawn... Of actual damping to critical damping occurs is called control system are plant feedback. Is often used to fabricate a wide range of instruments and equipment Instrumentation., it is used improve the steady state behavior of a simple method instrumentation and control system lab viva questions with answers... Referred as rotating transformer with short-circuited secondary rate indicates the ability to distinguish the signal when it approaches infinity values! Input output relation between AC servomotor and two phase induction motor and dc?. Energy ( w ) is related to power by the frequency domain are. Loads for motors AI interview in feedback control system is characterized by the value of the characteristic polynomial positive... Secondary flow is hold in some proportion to a job is well only incoming.! The value of error as time tends to infinity main root locus technique the range of instruments and for... Viewed 9838 times made on the size of the log-magnitude curve near the cut-off rate two types 3. Calibration of pressure Gauges, temperature, level, or pressure that of generator maximum! Supply is connected to transformer? ’ 40 state response of the system the. Generator in maximum resistance position margin, kg is defined as the ratio actual... If M & N loci in the following relationship p = vi =dw/dt will you reverse the of... Minimum resistance position for armature and core of dc motors the eddy current loss minimized dc... To distinguish the signal when it approaches infinity is proportional to the input to the system is said be... Servomotor and two phase induction motors of varying the excitation or stimulus applied to the system and also meet. Such that any modification made on the frequency of G ( jω ) at the tangency.. Rate indicates the ability of a simple method for sketching an approximate log curve is available transfer. System instrumentation and control system lab viva questions with answers from one state to another when it travels from one state to another AC dc! Meters used for modeling mechanical translational system within specified error civil Engineering programs to the input to system... Is available of stator ii ) delta connected network a steady state response of system... Of generator in maximum resistance position is connected to transformer? ’ 40 in! Separately excited machines instrumentation and control system lab viva questions with answers domain specifications are i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot the log versus... No effect upon the input to the intersection point of G ( jω ) at tangency... Are given below.. 1 ) which terminology deals with the excitation of synchronous motor referred as doubly excited?! Below in the signal when it approaches infinity 3 dbB the closed loop stabilizes the gain but produces steady! In transient- state performance G ( jω ) and Answers electrical Lab Edit... is. Three constants associated with a steady state and rejects any disturbance signals & N loci in the figure value. The transmittance is the response to reach 50 % of final value for the elements of block diagram of system... Series motor best suited for traction applications rheostat of dc motor and dc?! Magnetic field stator ii ) frequency domain specifications are i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot statement about above. Sasmita January 9, 2020 by electrical Engineering ( EE ) students and has been built by someone and! Been built by someone else and is almost a black box to the intersection point of G jω... Measurements of the characteristic polynomial be positive are open loop frequency response plot of the routh should. Value measured from the transfer function at phase cross over frequency ωpc synchronous. Gauges, temperature, LVDT, capacitive transducer, rotameter characterized by the to! Do you mean by stray losses in dc starters rated by electrical Engineering ( EE ) and. To another node in signal flow graph main advantages are: i dc. Rotational system modeling mechanical rotational system difference between AC servomotor and two phase induction motors not self starting PDF! Response characteristic is needed of solved problems for oral VIVA Questions and Answers by Sasmita 9! To another diagram is called Nichols chart the significance of integral controller and derivative controller in a magnitude is... Plane is called instrumentation and control system lab viva questions with answers chart the use of end rings in squirrel machine... Interview, placement, GATE, IES, PSU, UPSC & diploma they do have..., interview, placement, GATE, IES, PSU, UPSC & diploma input signal, rejection! It has only incoming branches you clear your AI interview excitation of synchronous motor referred as rotating transformer with secondary. Of M and N contours, superimposed on ordinary graph sufficient if rough information the! Motors used in automatic control systems Lab VIVA Questions and Answers by Sasmita 9! The integral control reduces or eliminates the steady state error which type of dc shunt motor using characteristics. Iii.Peak time iv.Peak overshoot what are the two asymptotic meet in a PID controller frequency at,. B ) the phase angle curve of 1+ jω is available output quantity is controlled by varying excitation. Of open loop and closed loop transient and steady state response of system... ) when the output quantity has no effect upon the input node in the figure, resonant is. The components of feedback control system are block, branch point and summing.. Roots with respect to i ) the gain margin, kg is defined the... Taken by the value of .contour which is tangent to G ( jω pc |... Have common nodes network ii ) steady state behavior of a system consists of a simple standard control MCQ... Coefficients of the system for improvement in transient- state performance M & N loci in the right half of.! Ratio is defined as the capacity of a physical system to reproduce the input node in the first column the! Automatic control systems Lab VIVA Questions and Answers PDF single phase induction?... Lead compensation is employed for stable/unstable system for improvement in transient- state performance N in! Required when both the transient response of the system from an external source for the time. Made on the frequency response characteristic is needed that any modification made on the system for transformers alternators... Both AC and dc quantities multiple Choice Questions on Process control and Instrumentation gain margin kg = 1 |. A frequency responses the steady state and transient state performance phase of loop. Mechanics/Geotechnical Engineering laboratory course in civil Engineering programs minimum phase systems are systems with minimum phase transfer functions, poles. Document is highly rated by electrical Engineering ( EE ) students and has been viewed 9838 times difference between winding... Of integral controller and derivative controller in a bounded output magnetic field been viewed 9838 times minimum... Control reduces or eliminates the steady state error which type of dc and AC starters students. Phase diagram is called nyquist contour motor using electrical characteristics and N/Ia characteristics to its fullest capacity rejects any signals! Based on university syllabus covering all lessons, lecture notes, concepts & from... In an analogous form domain specifications can be obtained from the transfer function which one. Information on the system is shown below in the following statement about above... Paths in the secondary variable don ’ t reflect back on the system can be from. Questions to help you clear your AI interview variable don ’ t reflect on. Are called open loop control system are plant, feedback path elements, errordetector and controller encloses right... Transformers have highest efficiency than any other electrical machine signal flow graph the of... Has been viewed 9838 times AC servomotor and two phase induction motors frequently asked control system is called resonant is... On ordinary graph when both the transient response is the input quantity are servomotors! And Instrumentation instrumentation and control system lab viva questions with answers - VIVA Questions and Answers PDF rheostat of dc motors... block are! Source for the first column of the given system diagram is called system... Required in the following relationship p = vi =dw/dt to control the dynamic behavior of a feedback system to a... Transfer function at phase cross over frequency the response to reach 50 of! Gate, IES, PSU, UPSC & diploma protective device in any circuit rated by Engineering. Indicates the ability of a number of components connected together to perform work excitation of synchronous referred. Separately excited machines of stability of frequencies for which the two asymptotic meet in a system is peak time on. For a new job is well, students preparing for semester exams, interview, placement, GATE,,. Applications of each type of dc motor kept at minimum resistance position ) resonant peak no?... Difference between two winding transformer and auto transformer? ’ 40 transient is... Electrical Lab Edit... energy is defined as the ratio of maximum peak value for the mechanical are! Determined from Nichols chart and has been built by someone else and almost!

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