control system questions and answers
We identify the locations of the instrument in the equipment layouts and put the bubbles and elevation and JB nos for the location. As I heard the PLC used to handle the DI/DO signals so it can take fast actions. 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. 5 Top Career Tips to Get Ready for a Virtual Job Fair, Smart tips to succeed in virtual job fairs. Self-excitation can cause considerable over-loading of the amplidyne and totally disrupt operation of system containing the amplidyne. For analog I/p & o/p signal we can use same JB. The control system should be definite and determinable. So in case if fire/Explosion takes place in the plant than that has to be restricted from entering into the control room. Improve your score by attempting Control Systems objective type MCQ questions listed along with detailed answers. The section contains questions on signal reconstruction, z transform, z-transfer function, equations, z and s domain relationship, stability analysis and compensation techniques. Various components employed in control systems are servo-motors, amplidyne, synchros, stepper motors, tachometers, gyroscopes etc. Explore the latest questions and answers in Management Control, and find Management Control experts. Same way depending upon the accessibility we decide the location of JB and marking of it into the instrument location plan is JB location. If the closed loop system is not properly designed, the feedback may lead to an oscillatory system. All Rights Reserved. Q.2. Amplidynes are provided with split-poles to provide space for inter poles. 24x7 Online Chat Support. In general, the difference between the desired output and the actual output is … There are two types of Control System- Open loop control … Question 29. Question 22. What Is Time Invariant System? The section contains questions on construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions. What Is Meant By Control System? Applicants can use free Control Systems ECE Online Test at free of cost. Question 17. Pulse controlled or digital controlled electric drives. About. While Locating Instrument & Jb Which Things We Have To Consider? Permanent magnet type- largest stepping angle. While Making Datasheets Which Things Are To Be Considered? What Is Control System? Give One Advantage Of The Two Phase Servomotor Over The Shaded Pole Type? Large complex systems using telemetry links based on pulse modulation (PM) translation of data. Answer : If system's output characteristics do not change with time, … The system involves one integrator and two delayed integrators. What Is Cable Tray? Head details a: Screw-cap and chain, b: material, c: conduit connections, d: terminal block> single or duplex. Whereas PLC has own limitations so it generally used for small but for important (Safety point of view) units, like boiler automations, Make-up compressor automations Etc. Question 3. A motor in which the rotor turns in discrete movements is called a stepper motor. Systems which are governed by the same types of equations are called analogous systems. AC tachometer does not cause any maintenance problem of commentators and brushes. What Are Analog Input/output & Digital Input/output? In control system non-Linearity caused by gear trains is a) Backlash b) Dead space c) Coulomb friction d) saturation Electricalunits.com. 106 TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. Here’s the list of Best Reference Books in Control Systems. 4.Define closed loop control system. Why Area Commutating Poles Required In Amplidynes? Why Amplidyne Are Not Extremely Over-compensated? IS – Intrinsic safety & NIS – Non Intrinsic safety. DCS & PLC’s speed depends on the scan rate of I/Os. b. Why Amplidynes Are Provided With Split-poles? What Is Meant By Instrument Location & Jb Location? That block holds the cables which are entering into the CCR. The section contains questions and answers on design problems, cascade compensation in time domain as well as frequency domain, tuning of pid controllers, realization of basic compensators and feedback compensation. Transfer function. Desired response can be obtained by appropriate design. Computer system overview multiple choice questions and answers PDF solve MCQ quiz answers on topics: Basic elements, cache design, cache principles, control and status registers, input output and communication techniques, instruction execution, interrupts, processor … © 2011-2020 Sanfoundry. CLOSE LOOP: This is measuring the process signals for operator’s action. Question 15. Solved examples with detailed answer description, explanation are given and it would be easy to understand. Types 80,150,300,450,600 & 900. – Anyone wishing to sharpen their knowledge of Control Systems Subject Feedback is that property of a closed loop control system which allows the output or some other controlled variable of the system, to be compared with the input to the system, so that the appropriate control action may be formed as some function of the output and input. Question 27. 2. Question 24. c. … 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. What Are Temperature Elements? Obtain a state-space model of the system shown in Figure 3-51. Loop power indicators: Man approach Illumination from Electrical if instrument is not going to provide. It is expressed as ratio of the Laplace transform of the output variable to the lap lace transform of the input variable with the assumption that all the initial conditions are zero. Numerically controlled machine tool operations. Where the PID controller takes control action and that given to the final control element as per the process requirement. No sensors are needed to control the variables. Let us define the output of the plant as x,. 100% Plagiarism Free. Question 8. Variable reluctance type-smallest stepping angle. – Every MCQ set focuses on a specific topic in Control Systems Subject, Who should Practice these Control Systems Questions? open-loop control system and closed-loop control system. The systems for which the differential equations have similar form are known as analogous system. All powered signals (24V, 48V, 110V….) The purpose of the cruise control system is to maintain a constant vehicle speed despite external disturbances, such as changes in wind or road grade. So MCT (Multiple cables transient) blocks are used. Compensating winding is connected in series with the power output brush terminals of the amplidynes to neutralize the armature reaction mmf set up by the load current and increase amplification factor. What are avoidable questions in an Interview? A system is defined as any physical object comprises of various components which are inter connected with each other by some characteristics. Searching for a new job is more difficult know-a-days it can turn to a job is well. Why Is Series Compensating Winding Employed In The Amplidynes? Thermo well Details a: material, b: Construction, c: dimension, e: connection. – 1000+ Multiple Choice Questions & Answers in Control Systems with explanations Generally this is used to make alert to both the operator. Solution. It will immensely help anyone trying to crack an exam or an interview. What Are The Major Types Of Control System? For open control system which of the following statements is incorrect ? Question 16. If system's output characteristics do not change with time, then it is called as time invariant system. In an open loop control system. In a System the output and inputs are interrelated in such a manner that … Distributed control system (DCS) and Programmable logic controller. 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 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. Menu. Multiple Choice Questions and Answers on Control Systems 1) Which terminology deals with the excitation or stimulus applied to the system from an external source for the... 2) Which among the following is not an advantage of an open loop system? What do you mean by asymptotic stability? These are the control systems which handles fields I/Os. They are available in all. What Are Its Characteristics? Means Tx sense the process and send it to the control room. It is possible to vary any of the characteristics of components in a system according to the requirements, and then the system is called a controllable system or control system. Temperature element. (b) Output is dependent … Open loop control is much simpler and less expensive. As an Example. Define Transfer Function? GATE 2019 EE syllabus contains Engineering mathematics, Electric Circuits and Fields, Signals and Systems, Electrical Machines, Power Systems, Control Systems, Electrical and Electronic Measurements, Analog and Digital Electronics, Power Electronics and Drives, General Aptitude. Control System Multiple Choice Questions and Answers. Question 25. How To Decide Cable Tray Size? 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. (a) Output is independent of control input. Does chemistry workout in job interviews? Explanation: A feedback control system uses a function of a prescribed relationship between the output and reference input to control the process. C. Reduce the damping of the system. Com mutating poles are required in amplidynes to give satisfactory commutation. Volt free (24V) contact (NO/NC) by instruments (all type of switches, ex. D. Increase the gain margin. For example, a given electrical circuit consisting of resistances, inductance and capacitance may be analogous to a mechanical system consisting of a suitable combination of dash pots, weights and springs or it may be analogous to an acoustical device consisting of an appropriate arrangement of fine mesh screens, tubes and cavities. Answer: Both controller and compensator has the function of improving stability and response of a system. Home. The section contains questions on stability, conditions for stability, non-linear systems and routh-hurwitz stability criterion. Question 34. It is speed control system output rate feedback is used to. – Anyone preparing for aptitude test in Control Systems Etc. 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. Practicing All Control Systems - Electrical Engineering Questions and Answers in online helps you to improve your ability to attend the real time GATE, IES and BSNL JTO Exams. | Page - 71 Only care has to be taken considering adequate space for laying cable, considering their bends.Etc. a. If you would like to learn Control Systems thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. India's best GATE Courses with a wide coverage of all topics! What is a feedback in Control System? The section contains questions on frequency response,polar and bode plots, pass and minimum phase systems, correlation between time and frequency response and transfer functions. Question 14. 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 Is The Use For Cable Entry In Control Room? What are the types of control system? In case of extreme over-compensation, undesirable self-excitation of the amplidyne that is spontaneous rise in voltage and load current at constant control current (or with the control circuit open) can occur. Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ. Limit switch, press,temp,flow,level switch) are digital input to control system. Limit the acceleration of the motor thing. Cruise Control: System Modeling Automatic cruise control is an excellent example of a feedback control system found in many modern vehicles. C'ontrol system. The section contains questions on servomechanims, parameter optimization, optimal control and state regulator problems, output regulator tracking problem and infinite-time regulator problem. Limit the speed of motor. Question 36. Answer: A. The section contains questions and answers on transfer functions, block diagram algebra, signal flow graphs and equations of physical systems. These topics are chosen from a collection of most authoritative and best reference books on Control Systems. Enlist The Applications Of Sampled Data Systems? If you are familiar with Control Systems Concepts then there are various companies that offer various job positions like Senior Hardware Engineer, DeltaV Automation Eng, Automation Engineer and many other roles too. Control system can be of two viz. 1. The section contains questions on steady state error, integral square error and its minimization. Question 12. 4-20 mA signals from instrument (transmitters) are analog input to control system. Control Systems Objective Questions & Answers – Set 3 Instrumentation Tools assists you with a complete guide of objective questions which mainly targets the aspirants of Electrical, Electronics and Instrumentation engineering Streams to crack the competitive exams and to prepare for the top MNC companies written tests. What Are The Advantages And Disadvantages Of Open Loop Control Systems? Question 20. Question 19. (sleeves & Mct). The section contains questions and answers on concepts of state, state variables and state model, solutions of state equations, controllability and observability, pole placement by state feedback, observer systems and state models for linear continuous-time systems. But controller is incorporated in the system during manufacturing while compensator is incorporated when system fails to work according to specifications. Get Answer Now! There is no compensation for any disturbances entering the system since it has fixed input. Basically it depends on the instrument item for which you are preparing the datasheet. OPEN LOOP: This is nothing but to sense the process signals from the field and to send it to the control room for operator monitoring only. What Are The Two Types Of Stepper Motors? Question 33. The difference between the output of the process under control and the reference input is amplified and used to control the process so that the difference is continually reduced. A-3-8. Instrument JB’s depending upon hazards area classification. Download link is provided below to ensure for the Students to download the Regulation 2017 Anna University IC8451 Control Systems 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. Material of construction (Valve body, Trim), Ladder type (made in Rungs type construction). Read This, Top 10 commonly asked BPO Interview questions, 5 things you should never talk in any job interview, 2018 Best job interview tips for job seekers, 7 Tips to recruit the right candidates in 2018, 5 Important interview questions techies fumble most. of cable occupancy in the cable tray and available tray size we have to choose it. This way of systematic learning will prepare anyone easily towards Control Systems interviews, online tests, examinations and certifications. Wish you the best in your endeavor to learn and master Control Systems! Because digital outputs are powered signal, by wrong connection there may be chances to damage the card. Question 30. There is no need to make a different drawing for this. Problem 1: Cooling tank control system (20 marks) Consider the well mixed, jacketed cooling tank shown in Figure 1. A. Answer: The Feedback in Control System in one in which the … In the process plant Control room built considering the non-hazardous area. 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. ,, it is most important question of control system. A control system manages commands, directs or regulates the behavior of other devices or systems. The section contains questions on linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems. Basically discussing about tray support than we could say it depends on the site conditions. What Is Feedback In Control System? What is mathematical model of a control system? Here’s list of Questions & Answers on Control Systems Subject covering 100+ topics: The section contains questions and answers on transfer functions, block diagram algebra, signal flow graphs and equations of physical systems. For IS signal IS JB’s used for NIS signal NIS JB’s used. How to Convert Your Internship into a Full Time Job? Top 10 facts why you need a cover letter? Which Types Of Servo Motors Generally Lend Themselves To Small Horse Power Requirements?
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