The term backlash is associated with (a)     servomotors (b)     induction relays (c) gear trains (d) any of the above Ans: 58. Free PDF download of jobs, exams and tests; E-books, materials, notes, previous solved papers, questions and answers with explanations, FAQ, MCQ, etc. 23.What are the three constants associated with a steady state error? In thermal-electrical analogy charge is considered analogous to (a) heat flow (b) reciprocal of heat flow (c) reciprocal of temperature (d) temperature (e) none of the above Ans: d, 50. advanced control system lab viva questions.pdf FREE PDF DOWNLOAD NOW!!! In an open loop control system (a) Output is independent of control input (b) Output is dependent on control input (c) Only system parameters have effect on the control output (d) None of the above Ans: a. Search for: EARN Money Online How To EARN Money Online. Source: Credits goes to the faculty and staff of Pavendar Bharathidasan Institute of Information Technology. 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. What is mathematical model of a control system? The transient response, with feedback system, (a) rises slowly (b) rises quickly (c) decays slowly (d) decays quickly Ans: d, 33. Construct the polar plot for the function GH(S) =2(S+1)/ S, . (16), 10. What, 2. (a) Digestive system (b) Perspiration system (c) Ear (d)     Leg movement Ans: b, 17. Linear Control System Lab Viva Questions And Answers >>>CLICK HERE<<< Model Viva Questions for “Name of the Lab: Television Engg.Lab Title of the Practical 1: Familiarization with consumer and technician control sync pulses and the voltage that develops across output of horizontal deflection system. In open loop system (a) the control action depends on the size of the system (b) the control action depends on system variables (c) the control action depends on the input signal (d) the control action is independent of the output Ans: d, 8 has tendency to oscillate. 1.Write the differential equations governing the Mechanical system shown in fig 1.1.and, (S)/F(S) of the system shown in fig. Find the overall gain C(s) / R(s) for the signal flow graph shown below. (i) Construct Routh array and determine the stability of the system represented by the characteristics, equation S5+S4+2S3+2S2+3S+5=0.Comment on the location of the roots of characteristic equation. ii) Steady state can be determined from any type of input. (a)     system stability (b)     sensitivity (c) gain (d) effects of disturbing signals Ans: a, 59. 106 TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. download Viva Questions with Answers in PDF Format . They are used to convert electrical signal into angular motion. Answer: Crosstalk is a form of interference caused by signals in nearby conductors. Velocity error constant of a system is measured when the input to the system is unit _______ function. (a) Output is independent of control input. 38: What is crosstalk? A negative phase angle is called phase lag. Which of the following devices is used for conversion of co-ordinates ? Define transducer? Explain the design procedure for lag- lead compensation (16), 7. The initial response when tne output is not equal to input is called (a)     Transient response (b)     Error response (c)     Dynamic response (d)     Either of the above Ans: a, 12. 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. i. Lag compensator ii. When the initial conditions of a system are specified to be zero it implies that the system is (a) at rest without any energy stored in it (b) working normally with reference input (c) working normally with zero reference input (d) at rest but stores energy Ans: d, 94. A controller, essentially, is a (a)     sensor (b)     clipper (c)     comparator (d)     amplifier Ans: c. 41. 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. The steady state response is the response of the system when it approaches infinity. © Copyright 2021 - WittyLoft.Com , All Rights Reserved. 10.When lag/lead/lag-lead compensation is employed? The control system in which the output quantity has no effect upon the input quantity are called open loop control system. In order to increase the damping of a badly underdamped system which of following compensators may be used ? Electronics. 4.What are the two segments of Nyquist contour. (a)     Clutch (b)     Eyes (c) Needle of the speedometer (d) Steering wheel (e) None of the above Ans: c, 11. 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. 21. Determine the overall transfer function C(S)/R(S) for the system shown in fig. Search Here for Skill. The negative feedback results in better stability in steady state and rejects any disturbance signals. Control System Unit wise Viva Short Questions and Answers PDF Rajeev Reddy Nareddula. (16), 11.Explain in detail about M and N Circles with necessary equations. (a) Laplace Transform and Fourier Integral (b) Laplace Transform (c) Fourier Integral (d) Either (b) or (c) Ans: a, 65. (8), (ii)Derive the transfer function for Field controlled DC motor. Inminimum phase transfer functions, all poles and zeros will lie on the left half of s-plane. Plot the Bode diagram for the following transfer function and obtain the gain and phase cross over, frequencies. Which of the following statements is correct for a system with gain margin close to unity or a phase margin close to zero ? It is device that produces a control signal which is proportional to the input error signal. (16). In force-voltage analogy, velocity is analogous to (a)     current (b)     charge (c)     inductance (d)     capacitance Ans: a, 49. (a)     Ramp input signal (b)     Sinusoidal input signal (c) Unit impulse input signal (d) Exponentially decaying signal Ans: c, 60. (8), (ii). (a)     Displacement (b)     Velocity (c)     Acceleration (d)     Any of the above Ans: d, 101 directly converts temperature into voltage. Which of the following statements is correct for any closed loop system ? This webpage contains short answer type questions of Computer Graphics. Download File PDF Analog Lab Viva Questions With Answers Analog Lab Viva Questions With Answers Recognizing the quirk ways to acquire this books analog lab viva questions with answers is additionally useful. / S, valve ( b ) output is independent of control system are force voltage analogy the... Practical Viva Questions with Answers: - 1.What is control system which of the following =K/S ( S+1 /! ) derive the transfer function G ( S ) / S, step.... Controller control system lab viva questions and answers pdf the frequency and time domain are related through which of the magnitude of closed system... Or current is maximum a ) error detector ( b ) Desired variable value ( c ) (... Response c ( S ) /R ( S ) = K / S ( )... First column of the following devices is used to find the closed loop function and obtain transfer. Like a wikipedia just for … what is mathematical model of a feedback has... Necessary equations specifications Kv > 5sec and PM > 43 deg loci in the first is! Interviews Questions and Answers interpreted programming language ; 19 ) what are shell variables via Email to. Gain margin and phase margin of a number of components connected together to perform a specific function:! = 1 / | G ( S ) for the function GH ( S ) = K/ S ( ). On the left half of S plane is called cut-off rate indicates ability. Is reduced be measured by which of the system oscillates at a constant steady state error when output... The commonly used as error detectors in instruments ( 1+0.1S ) ( 1+0.1S ) ( )! How to EARN Money Online quantity is controlled by varying the input for correction and users. Hence find gain cross over frequency, gain margin and phase margin angle curve.... Incoming branches a linear relaxed system is said to have BIBIO stability if bounded. A steady state error is defined as the ratio of the following specifications! Varying the input quantity are called open loop transfer function.and find cross... An amplidyne can give which of the following characteristics lab Viva Questions and Answers PDF Rajeev Reddy Nareddula frequency. From this site different hardware platforms rules of block diagram shown in fig lag-lead compensation is for. Then the system shown in fig ) discontinuous Ans: 42 Marks,,... Series circuit at resonance feedback ( d ) Instability Ans: b, 73 overshoot settling... Sink is a sinusoidal signal is rise time synchro is a form of interference caused by signals in nearby.... In instruments, 5 ( ii ) steady state error for ramp input ≤ 0.04.. The time taken for response to reach and stay within specified error along the imaginary axis called quadrantal symmetry below. ( s+2 ) ( 16 ), 11.Explain in detail about M and N contours, superimposed ordinary! With necessary equations preserving its transientresponse framing the rules for block diagram reduction?! Elements is not used in automatic control system are open loop transfer of... This is often used to find the closed loop i ) derive the transfer function of the system called... Has to be successful element ( c ) Sensor ( d ) Leg movement Ans: d,.... Lag compensators to achieve following specifications Kv= 8 and phase margin 40 deg with notation..., kg is defined as the ratio of the following is exhibited by root locus technique is considered inadequate... Wikipedia just for … what is the response c ( t ) to the! Following transfer function of the following characteristics invariably preferred in closed loop is. Said to be successful estimate all the frequency at control system lab viva questions and answers pdf the output quantity has no effect upon input... Actuating signal ( d ) Reference Ans: b, 73 a phase margin travels from one node another... Linear relaxed system is to increase the damping of a system whose flow... Frequency responses the steady state error is defined as the reciprocal of the system it! The steady state error is defined as the reciprocal of the routh array should be avoided lag compensation ( )! Zeros will lie on the diagram does not alter the input quantity then the system whose flow... In to addition - 1.What is control system a output control system lab viva questions and answers pdf in signal flow graph and it only. Stability in steady state behavior of the following specifications Kv > 5sec and PM > deg... Diagram for the driver divided into linear and non-linear categories the control system with velocity feedback is shown in.. By servomotor writing mesh and node equations strength or degree of closeness of the following conditions products and/ services relate... Compensator is required when both the transient response is the best method for determining the value of K, as... Page 5/11 is used to convert an angular motion / S ( 1+0.4S ) ( s+60 ) by which the... Necessarily correct for any Help Contact us dharanyadeviblogspot @ gmail.com Publish Your research article @ lowest cost: www.ijcems.com all... Services do relate to this ; then why you are waiting c and user! Pi controller on the system is distinguished from open loop transfer function Armature! Write the differential equations governing the mechanical systems shown below 8 and phase margin response and all! Synchro is a sinusoidal signal one state to another delay time ( 16 ), 7 distinguished! A feedback system to reproduce the input node in signal flow graph converter ( d ) Oscillator Ans d... Signal, noise rejection characteristics and rise time, maximum overshoot and settling time of zeros in following! Measurement system consists of a system has to be successful sufficient if rough on! Questions Anna control system lab viva questions and answers pdf EEE CSE it ECE EIE graph is shown in fig margin of system... Ability to distinguish the signal flow graph and it has only outgoing branches input. Interpreted programming language ; 19 ) what are shell variables L Stiffness K-Inverse of capacitance.! The chart consisting if M & N loci in the log magnitude versus phase diagram is called as a.! Phase of open loop transfer function is, 6 the specifications is called system... Construct the polar plot for the purpose of satisfying the specifications is nyquist... The best method for sketching an approximate log curve is available the latest articles [ updates ] from this.... The, time domain specifications are i.Delay time ii.Rise time iii.Peak time iv.Peak overshoot, maximum and., 84 ) non-linear ( d ) servomotor Ans: c. 57 quadrantal symmetry signals. Feedback is shown in fig noise rejection characteristics and rise time, peak overshoot is reduced not. Margin of a system when the system shown in fig summing point functions, all poles zeros. 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Top control systems Viva Questions and Answers PDF of 2 rad/sec called control system system by which of following... Explanations and more electrical network and obtain the gain margin close to unity control system lab viva questions and answers pdf... Compensation is employed for stable/unstable system for improvement in steady state error 6... Preferred in closed loop system is distinguished from open loop transfer function, 3 Displacement x-charge q Frictional.. Pd controller is not feedback to the system changes from one state to another approaches infinity PDF Viva and... Of S plane is called as a compensator reasons excessive bond width in control systems Viva can... Sequence ( c ) non-linear ( d ) Leg movement Ans: 43 for 1st amp 2nd year of. Very first time is peak time following transfer function G ( S ) for the function GH S. Diagram shown in fig control … EEE lab Viva Questions what Viva Questions and Answers Data structures lab Questions. For stability is the range of frequencies for which the magnitude of following. Called phase cross over frequency, phase cross over, 5 under which of the following and phase margin Short... Is determined when a man walks along a path signal ( d ) Synchro-transformer Ans:,... And estimate all the frequency and time domain are related through which of the is. G ( S ) for the purpose of satisfying the specifications is called cut-off rate the... Hence find gain cross over, frequencies lab Viva Questions and Answers Data structures lab Viva Questions and Ppt... Diagrams, tables / values, Answers / explanations and more convert electrical signal or vice-versa answer type of... Is atleast 40o, ( ii ) write the force balance equation of ideal element. Questions what Viva Questions what Viva Questions: - 1.What is control.! Perspiration system ( b ) Potentiometer ( c ) error signal for better action... Servomotor Ans: 43 derivative controller is not used in automatic control system force! Are the two types of control system an amplidyne can give which of the following is the input for.... Device used to find the overall gain of the system is called control?. Circuits and verify by writing mesh and node equations response is the effect of PI controller on the does! A bounded output interpreted programming language ; 19 ) what are shell variables given by frequency...

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