These short solved questions or quizzes are provided by Gkseries. 1. State variable. Question 7. Sampled data system finds applications in, All rights reserved © 2020 Wisdom IT Services India Pvt. CLOSE LOOP: This is measuring the process signals for operator’s action. What Are Its Characteristics? Question 17. Question 36. (a) Output is independent of control input. Answer: A. A feedback is said to exist in a system if the cause and effect between variables is interrelated. Material of construction (Valve body, Trim), Ladder type (made in Rungs type construction). If you would like to learn Control Systems thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. Searching for a new job is more difficult know-a-days it can turn to a job is well. For DCS I/p & o/p and PLC I/p & o/p we used separate JB’s. It graphically displays the transmission of signals through the system, as does the block diagram. Etc. Page 1 The order of the differential equation governing the system is called as the order of a system.From the transfer function of the given system, we can obtain the order of the system. What Is Cable Tray? For example consider an automobile, where the speed can be varied by adjusting the accelerator to the desired level. What are avoidable questions in an Interview? They are designed to sustain the fire for fixed time duration. A control system is an arrangement of physical components connected or related in such a manner as to command, direct or regulate in such a manner as to command, direct or regulate itself or another system. Here’s the list of Best Reference Books in Control Systems. Differential Equations of Physical Systems and Dynamics of Robotic Mechanisms, Control of the Effects of Disturbance Signals by Use of Feedback, Linearizing Effect and Regenerative Feedback, Linear Approximation of Nonlinear Systems, Time Response of Second Order Systems – I, Time Response of Second Order Systems – II, Time Response of Second Order Systems – III, Time Response of Second Order Systems – IV, Design Considerations for Higher-Order Systems, Approximation of Higher-Order Systems by Lower-Order, Necessary Conditions for Stability and Non-Linear Systems, Correlation between Time and Frequency Response, Assessment of Relative Stability Using Nyquist Criterion, Preliminary Considerations of Classical Design, The Inverse Z-transform and Response of Linear Discrete Systrems, The Z-transform Analysis of Sampled-Data Control Systems, Concepts of State, State Variables and State Model, State Models for Linear Continuous-Time Systems, State Variables and Linear Discrete-Time Systems, Constructing of Liapunov for the Linear and Non-Linear System, The Output Regulator and Tracking Problem, Stability Analysis by Describing Functions, Here’s the list of Best Reference Books in Control Systems, 1000 Data Structures & Algorithms II MCQs, 50k Electronics & Communication Engg MCQs. DCS can handles handsome quantity of I/Os so that can be used for total plant automation. A linear system is a system that follows the law of superposition and homogeneity. Our 1000+ Control Systems questions and answers focuses on all areas of Control Systems subject covering 100+ topics in Control Systems. Its Size? Question 27. Limit the acceleration of the motor thing. a. Two phase and shaded pole type induction motor are used. A signal flow graph is pictorial representation of the simultaneous equations describing a system. Question 22. Temperature element. Only care has to be taken considering adequate space for laying cable, considering their bends.Etc. Instrument JB’s depending upon hazards area classification. So MCT (Multiple cables transient) blocks are used. There are two types of Control System- Open loop control … Analogous systems may have entirely different physical appearances. What Is Time Invariant System? The output of each integrator or delayed integrator can be a state variable. C. Reduce the damping of the system. Transmitter: Tube routing, maintenance area, man approach, Valve : Hand wheel operations, Maintenance area, Etc. How An Ac Tachometer Is Superior To Dc Tachometer? The section contains questions on standard test signals, time response of first and second order systems, steady state errors, performance indices, robotic control and state variable analysis. It will immensely help anyone trying to crack an exam or an interview. If the closed loop system is not properly designed, the feedback may lead to an oscillatory system. Super motors are used in industrial situations which call for precise positioning of an object or precise control of speed without having to resort to closed-loop feedback. AC tachometer does not cause any maintenance problem of commentators and brushes. Making a great Resume: Get the basics right, Have you ever lie on your resume? Question 2. Control System Multiple Choice Questions and Answers for competitive exams. Wish you the best in your endeavor to learn and master Control Systems! Applicants can use free Control Systems ECE Online Test at free of cost. Question 8. While Making Datasheets Which Things Are To Be Considered? For open control system which of the following statements is incorrect ? Question 30. We identify the locations of the instrument in the equipment layouts and put the bubbles and elevation and JB nos for the location. Which among the following is a unique model of a system? Problem 1: Cooling tank control system (20 marks) Consider the well mixed, jacketed cooling tank shown in Figure 1. 6 things to remember for Eid celebrations, 3 Golden rules to optimize your job search, Online hiring saw 14% rise in November: Report, Hiring Activities Saw Growth in March: Report, Attrition rate dips in corporate India: Survey, 2016 Most Productive year for Staffing: Study, The impact of Demonetization across sectors, Most important skills required to get hired, How startups are innovating with interview formats. The characteristics of feedback are: increased bandwidth, increased accuracy, reduced distortion and non linearity and tendency towards oscillations or instability. 24x7 Online Chat Support. Question 20. In general, the difference between the desired output and the actual output is … This is done under one of the following: Objective. In electronics control word is used to keep the output of a system within specified limits. Answer : If system's output characteristics do not change with time, … Question 35. In the process plant Control room built considering the non-hazardous area. Solved examples with detailed answer description, explanation are given and it would be easy to understand. What Are The Advantages And Disadvantages Of Open Loop Control Systems? The control system in which the output quantity has no effect upon the input quantity are called open loop control system. IS – Intrinsic safety & NIS – Non Intrinsic safety. Improve your score by attempting Control Systems objective type MCQ questions listed along with detailed answers. Question 31. Transfer function. Permanent –magnet type and variable reluctance type motor are stepper motor. Control Systems Questions are essential in the Electronics field. DCS handles more nos of I/Os rather than PLC. Means Tx sense the process and send it to the control room. b. Cable tray is nothing but the way or media through which we lay the field cables in plant. What are the types of control system? c. … Because digital outputs are powered signal, by wrong connection there may be chances to damage the card. Thermo well Details a: material, b: Construction, c: dimension, e: connection. If system's output characteristics do not change with time, then it is called as time invariant system. Menu. 4-20 mA signals from instrument (transmitters) are analog input to control system. Question 29. In an open loop control system. 1. One should spend 1 hour daily for 2-3 months to learn and assimilate Control Systems comprehensively. Enlist The Applications Of Sampled Data Systems? The system error is the ideal value of the controlled variable minus the value of the final controlled variable. Question 5. Numerically controlled machine tool operations. The section contains questions on servomechanims, parameter optimization, optimal control and state regulator problems, output regulator tracking problem and infinite-time regulator problem. These topics are chosen from a collection of most authoritative and best reference books on Control Systems. Download link is provided below to ensure for the Students to download the Regulation 2017 Anna University EC8391 Control Systems Engineering Lecture Notes, Syllabus, Part-A 2 marks with answers & Part-B 16 marks Questions with answers, Question Bank with answers, All the materials are listed below for the students to make use of it and score Good (maximum) marks with our study materials. What Are Control System Components? High speed tin plate rolling mills using quantized data for control. Pulse controlled or digital controlled electric drives. Better response to very small controls signals. What Is The Use For Cable Entry In Control Room? All powered signals (24V, 48V, 110V….) While Locating Instrument & Jb Which Things We Have To Consider? Does chemistry workout in job interviews? Why Amplidynes Are Provided With Split-poles? Limit the speed of motor. Its Type? Question 15. Variable reluctance type-smallest stepping angle. A-3-8. What Is Open Loop & Close Loop?
2020 control system questions and answers