In general, the difference between the desired output and the actual output is … Material of construction (Valve body, Trim), Ladder type (made in Rungs type construction). Question 29. Question 31. Question 22. In a System the output and inputs are interrelated in such a manner that … 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. (sleeves & Mct). Why Amplidynes Are Provided With Split-poles? Open loop control is much simpler and less expensive. DCS handles more nos of I/Os rather than PLC. Question 7. Question 27. ... if you are trying to design a punchcard system for budgetary control it … How to Convert Your Internship into a Full Time Job? Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ. How An Ac Tachometer Is Superior To Dc Tachometer? Question 18. Question 8. It will immensely help anyone trying to crack an exam or an interview. Enlist The Applications Of Sampled Data Systems? The section contains questions on linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems. Control System Multiple Choice Questions and Answers. 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. There are two types of Control System- Open loop control … A motor in which the rotor turns in discrete movements is called a stepper motor. – All – Experienced, Freshers and Students. What Is Open Loop & Close Loop? As I heard the PLC used to handle the DI/DO signals so it can take fast actions. 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. The section contains questions on servomechanims, parameter optimization, optimal control and state regulator problems, output regulator tracking problem and infinite-time regulator problem. 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. All Rights Reserved. Voucher Generation. Analogous systems may have entirely different physical appearances. Only care has to be taken considering adequate space for laying cable, considering their bends.Etc. – Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews) 4-20 mA signals from instrument (transmitters) are analog input to control system. What Are Temperature Elements? The section contains questions on construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions. The systems for which the differential equations have similar form are known as analogous system. Thermo well Details a: material, b: Construction, c: dimension, e: connection. The section contains questions on stability, conditions for stability, non-linear systems and routh-hurwitz stability criterion. Do you have employment gaps in your resume? c. … LIST OF ATTEMPTED QUESTIONS AND ANSWERS. 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. Question 30. Transfer function. No sensors are needed to control the variables. Transmitter: Tube routing, maintenance area, man approach, Valve : Hand wheel operations, Maintenance area, Etc. The system involves one integrator and two delayed integrators. How To Decide Cable Tray Size? 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. For example consider an automobile, where the speed can be varied by adjusting the accelerator to the desired level. One should spend 1 hour daily for 2-3 months to learn and assimilate Control Systems comprehensively. A. Q.2. Question 3. In control system non-Linearity caused by gear trains is a) Backlash b) Dead space c) Coulomb friction d) saturation Electricalunits.com. Question 20. 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. But controller is incorporated in the system during manufacturing while compensator is incorporated when system fails to work according to specifications. Its Type? from system to instruments (SOV) are Digital outputs. Obtain a state-space model of the system shown in Figure 3-51. Some of the time it is used to handle few nos of AI/AO. But for Digital I/p & o/p we have to use separate JB’s. These short objective type questions with answers are very important for Board exams as well as competitive exams. Transfer Function of a control system is defined as: Ratio of Laplace … What Is Meant By Control System? (b) Output is dependent … a. A system is defined as any physical object comprises of various components which are inter connected with each other by some characteristics. Cruise Control: System Modeling Automatic cruise control is an excellent example of a feedback control system found in many modern vehicles. That block holds the cables which are entering into the CCR. – Anyone wishing to sharpen their knowledge of Control Systems Subject Explore the latest questions and answers in Management Control, and find Management Control experts. Question 17. All powered signals (24V, 48V, 110V….) These short solved questions or quizzes are provided by Gkseries. If you would like to learn Control Systems thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. 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. a. Control Systems Questions are essential in the Electronics field. 1. The sections covers questions on neural networks, adaptive control and fuzzy logic. (a) Output is independent of control input. Same way depending upon the accessibility we decide the location of JB and marking of it into the instrument location plan is JB location. Here’s the list of Best Reference Books in Control Systems. Why Are Drag-cup-construction Used In Rotors Of Certain Fhp Machines For Control Purposes? The section contains questions on liapunov’s stability criterion. What are the types of control system? So MCT (Multiple cables transient) blocks are used. What Is Meant By Instrument Location & Jb Location? What Is Time Invariant System? Com mutating poles are required in amplidynes to give satisfactory commutation. Control Systems ECE Questions with Answers are useful for competitive exams like GATE. 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. 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. 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. 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. A control system manages commands, directs or regulates the behavior of other devices or systems. 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. Control system can be of two viz. Question 28. Answer: A. Question 9. For IS signal IS JB’s used for NIS signal NIS JB’s used. What Is The Use For Cable Entry In Control Room? Question 16. In other words, the definition of control system can be rewritten as A control system is a system, which controls other system. Two phase and shaded pole type induction motor are used. What Are Its Characteristics? Answer: Both controller and compensator has the function of improving stability and response of a system. What are avoidable questions in an Interview? Type of Temperature Sensor (T/C or RTD, in case of T/c which type J,K,R,S etc.). If the closed loop system is not properly designed, the feedback may lead to an oscillatory system. The section contains questions on root locus and construction of root loci. Desired response can be obtained by appropriate design. D. Increase the gain margin. Limit switch, press,temp,flow,level switch) are digital input to control system. In the process plant Control room built considering the non-hazardous area. Better response to very small controls signals. Question 5. What Is Time Invariant System? For open control system which of the following statements is incorrect ? What Are Control System Components? 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. The control system should be definite and determinable. Ltd. Wisdomjobs.com is one of the best job search sites in India. Which among the following is a unique model of a system? They are available in all. What Is Control System? Its Support? According to the no. Question 34. The control system in which the output quantity has no effect upon the input quantity are called open loop control system. So in case if fire/Explosion takes place in the plant than that has to be restricted from entering into the control room. Head details a: Screw-cap and chain, b: material, c: conduit connections, d: terminal block> single or duplex. Question 33. © 2011-2020 Sanfoundry. Large complex systems using telemetry links based on pulse modulation (PM) translation of data. If system's output characteristics do not change with time, then it is called as time invariant system. Define Transfer Function? A linear time invariant system can be represented by constant co-efficient differential equations. Applicants can use free Control Systems ECE Online Test at free of cost. Numerically controlled machine tool operations. These topics are chosen from a collection of most authoritative and best reference books on Control Systems. For both the system Marshalling panels, Consoles and other faculties of Ethernet Etc can be used according to the need. The section contains questions on steady state error, integral square error and its minimization. Systems which are governed by the same types of equations are called analogous systems. Basically it depends on the instrument item for which you are preparing the datasheet. Permanent magnet type- largest stepping angle. Question 4. We identify the locations of the instrument in the equipment layouts and put the bubbles and elevation and JB nos for the location. Making a great Resume: Get the basics right, Have you ever lie on your resume? For DCS I/p & o/p and PLC I/p & o/p we used separate JB’s. What Are The Two Types Of Stepper Motors? 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. Digital Signal Processing Interview Questions, Business administration Interview questions, Cheque Truncation System Interview Questions, Principles Of Service Marketing Management, Business Management For Financial Advisers, Challenge of Resume Preparation for Freshers, Have a Short and Attention Grabbing Resume. High speed tin plate rolling mills using quantized data for control. 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. 100% Plagiarism Free. Because digital outputs are powered signal, by wrong connection there may be chances to damage the card. What Is Meant By Analogous Systems? Amplidynes are provided with split-poles to provide space for inter poles. Menu. Question 25. What is a feedback in Control System? DCS can handles handsome quantity of I/Os so that can be used for total plant automation. b. What Are Analog Input/output & Digital Input/output? Cable tray is nothing but the way or media through which we lay the field cables in plant. | Page - 71 This way of systematic learning will prepare anyone easily towards Control Systems interviews, online tests, examinations and certifications. Solved examples with detailed answer description, explanation are given and it would be easy to understand. 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. Its Size? Control Systems Quiz Questions and Answers Start online test with Control Systems quiz for Gate electrical engineering exam 2019-20. 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. There is no compensation for any disturbances entering the system since it has fixed input. What Are The Advantages And Disadvantages Of Open Loop Control Systems? Question 6. It graphically displays the transmission of signals through the system, as does the block diagram. Question 42. Question 14. These are the control systems which handles fields I/Os. Why Area Commutating Poles Required In Amplidynes? – Anyone preparing for aptitude test in Control Systems It is speed control system output rate feedback is used to. Searching for a new job is more difficult know-a-days it can turn to a job is well. They are designed to sustain the fire for fixed time duration. Menu. A linear system is a system that follows the law of superposition and homogeneity. B. Question 35. Question 36. Basically discussing about tray support than we could say it depends on the site conditions. What Is Feedback In Control System? Question 2. What Is Cable Tray? For The Same Number Of Poles Which Stepper Motor Produces? Loop power indicators: Man approach Illumination from Electrical if instrument is not going to provide. The system error is the ideal value of the controlled variable minus the value of the final controlled variable. – 1000+ Multiple Choice Questions & Answers in Control Systems with explanations The characteristics of feedback are: increased bandwidth, increased accuracy, reduced distortion and non linearity and tendency towards oscillations or instability. 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. A signal flow graph is pictorial representation of the simultaneous equations describing a system. What Is An Order Of A System? We have collect following information to prepare D/s. (a) Output is independent of control input. While Locating Instrument & Jb Which Things We Have To Consider? 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. Generally this is used to make alert to both the operator. Limit the acceleration of the motor thing. Improve your score by attempting Control Systems objective type MCQ questions listed along with detailed answers. Home. A feedback is said to exist in a system if the cause and effect between variables is interrelated. Types 80,150,300,450,600 & 900. Pulse controlled or digital controlled electric drives. 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. Where the PID controller takes control action and that given to the final control element as per the process requirement. The section contains questions on signal reconstruction, z transform, z-transfer function, equations, z and s domain relationship, stability analysis and compensation techniques. DCS & PLC’s speed depends on the scan rate of I/Os. Why Amplidyne Are Not Extremely Over-compensated? We have also provided number of questions asked since 2007 and average weightage for each subject. Means Tx sense the process and send it to the control room. Over shoot is maximum difference between the transient and steady-state solutions for a unit step function input. Perforated Type(Solid sheath consist of Holes for ventilation). Question 15. Question 12. As an Example. In an open loop control system. Limit the speed of motor. C. Reduce the damping of the system. Permanent –magnet type and variable reluctance type motor are stepper motor. – Every MCQ set focuses on a specific topic in Control Systems Subject, Who should Practice these Control Systems Questions? The section contains questions and answers on controller components, stepper motors, linear approximation of nonlinear systems, control system classification, hydraulic and pneumatic systems. Distributed control system (DCS) and Programmable logic controller. Simplicity in … Question 26. Answer : If system's output characteristics do not change with time, … 4.Define closed loop control system. 24x7 Online Chat Support. Wish you the best in your endeavor to learn and master Control Systems! (b) Output is dependent … In drag-cup-construction all heavy iron lamination remain stationary and only a light cup rotates, so the inertia is quite small. – Anyone preparing for entrance examinations and other competitive examinations State variable. 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. Question 19. The section contains questions and answers on mathematical preliminaries,nyquist stability creation, closed loop frequency and time domain analysis. 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. Answer: Control means to keep something under limits. C. Reduce the damping of the system. For analog I/p & o/p signal we can use same JB. The section contains questions and answers on transfer functions, block diagram algebra, signal flow graphs and equations of physical systems.
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