Variable reluctance type-smallest stepping angle. 4-20 mA signals to instrument (I/p & electro pneumatic positioner) are analog output from control system. Improve your score by attempting Control Systems objective type MCQ questions listed along with detailed answers. Question 29. About. In an open loop control system. How An Ac Tachometer Is Superior To Dc Tachometer? Solution. What Are Analog Input/output & Digital Input/output? 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? 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. ... if you are trying to design a punchcard system for budgetary control it … 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. Where the PID controller takes control action and that given to the final control element as per the process requirement. For example consider an automobile, where the speed can be varied by adjusting the accelerator to the desired level. What Is The Use For Cable Entry In Control Room? How to Convert Your Internship into a Full Time Job? But for Digital I/p & o/p we have to use separate JB’s. Question 17. We have also provided number of questions asked since 2007 and average weightage for each subject. Where Is Stepper Motor Used? Get Answer Now! Answer: Control means to keep something under limits. There are two types of Control System- Open loop control … 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. Because digital outputs are powered signal, by wrong connection there may be chances to damage the card. A system is defined as any physical object comprises of various components which are inter connected with each other by some characteristics. A signal flow graph is pictorial representation of the simultaneous equations describing a system. Limit the acceleration of the motor thing. Transfer Function of a control system is defined as: Ratio of Laplace … Our 1000+ Control Systems questions and answers focuses on all areas of Control Systems subject covering 100+ topics in Control Systems. The characteristics of feedback are: increased bandwidth, increased accuracy, reduced distortion and non linearity and tendency towards oscillations or instability. Desired response can be obtained by appropriate design. 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. A feedback is said to exist in a system if the cause and effect between variables is interrelated. They are available in all. 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. Enlist The Applications Of Sampled Data Systems? Obtain a state-space model of the system shown in Figure 3-51. Question 18. Answer: The Feedback in Control System in one in which the … Transfer function. 2. Home. 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. Why Amplidyne Are Not Extremely Over-compensated? 100% Plagiarism Free. The section contains questions and answers on transfer functions, block diagram algebra, signal flow graphs and equations of physical systems. For both the system Marshalling panels, Consoles and other faculties of Ethernet Etc can be used according to the need. Head details a: Screw-cap and chain, b: material, c: conduit connections, d: terminal block> single or duplex. Question 30. What Is Cable Tray? In drag-cup-construction all heavy iron lamination remain stationary and only a light cup rotates, so the inertia is quite small. The section contains questions on stability, conditions for stability, non-linear systems and routh-hurwitz stability criterion. Answer: Both controller and compensator has the function of improving stability and response of a system. How Can Freshers Keep Their Job Search Going? (b) Output is dependent … Answer: Control system is a collection of physical … But controller is incorporated in the system during manufacturing while compensator is incorporated when system fails to work according to specifications. What Is An Order Of A System? The control system should be definite and determinable. ,, it is most important question of control system. Why Is Series Compensating Winding Employed In The Amplidynes? Question 2. Control system can be of two viz. GATE Objective & Numerical Type Questions Question 1 [Practice Book] [GATE IN 1992, IIT-Delhi : 2 Marks] A system has a complex pole pair of (1 2) j and a real zero of (– 3). Material of construction (Valve body, Trim), Ladder type (made in Rungs type construction). 4.Define closed loop control system. Explore the latest questions and answers in Management Control, and find Management Control experts. If system's output characteristics do not change with time, then it is called as time invariant system. Question 7. What is mathematical model of a control system? High speed tin plate rolling mills using quantized data for control. The section contains questions on linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems. 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. b. Menu. We identify the locations of the instrument in the equipment layouts and put the bubbles and elevation and JB nos for the location. Question 33. Question 6. Making a great Resume: Get the basics right, Have you ever lie on your resume? What do you mean by asymptotic stability? The sections covers questions on neural networks, adaptive control and fuzzy logic. (a) Output is independent of control input. These short objective type questions with answers are very important for Board exams as well as competitive exams. According to the Cause and effects diagrams the System programmer assigns the control action block into the system, we can call them as memory assigning. D. Increase the gain margin. What Is Control System? Question 5. DCS handles more nos of I/Os rather than PLC. from system to instruments (SOV) are Digital outputs. C. Reduce the damping of the system. Instrument JB’s depending upon hazards area classification. What Is Meant By Analogous Systems? 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. India's best GATE Courses with a wide coverage of all topics! Question 12. Question 31. State variable. Question 25. Basically discussing about tray support than we could say it depends on the site conditions. In a System the output and inputs are interrelated in such a manner that … 24x7 Online Chat Support. Question 36. Control System Multiple Choice Questions and Answers for competitive exams. The section contains questions on liapunov’s stability criterion. A linear system is a system that follows the law of superposition and homogeneity. According to the no. 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. Page 1 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 … Answer : If system's output characteristics do not change with time, … Question 14. What Is Meant By Instrument Location & Jb Location? DCS & PLC’s speed depends on the scan rate of I/Os. What Are Its Characteristics? Problem 1: Cooling tank control system (20 marks) Consider the well mixed, jacketed cooling tank shown in Figure 1. | Page - 71 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. For The Same Number Of Poles Which Stepper Motor Produces? Why Area Commutating Poles Required In Amplidynes? It is speed control system output rate feedback is used to. This consists of Instrument location considering the piping drawing given from piping dept. Question 19. 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. Same way depending upon the accessibility we decide the location of JB and marking of it into the instrument location plan is JB location. While Locating Instrument & Jb Which Things We Have To Consider? a. Question 3. A motor in which the rotor turns in discrete movements is called a stepper motor. Only care has to be taken considering adequate space for laying cable, considering their bends.Etc. 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. (b) Output is dependent … Explanation: A feedback control system uses a function of a prescribed relationship between the output and reference input to control the process. What Is Feedback In Control System? What Is Open Loop & Close Loop? The section contains questions on servomechanims, parameter optimization, optimal control and state regulator problems, output regulator tracking problem and infinite-time regulator problem. In the above mentioned case the PLCs can be get connected with the DCS with the help of soft link. One should spend 1 hour daily for 2-3 months to learn and assimilate Control Systems comprehensively. Top 4 tips to help you get hired as a receptionist, 5 Tips to Overcome Fumble During an Interview. How To Decide Cable Tray Size? If the closed loop system is not properly designed, the feedback may lead to an oscillatory system. 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. Self-excitation can cause considerable over-loading of the amplidyne and totally disrupt operation of system containing the amplidyne. There is no compensation for any disturbances entering the system since it has fixed input. 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. The system error is the ideal value of the controlled variable minus the value of the final controlled variable. (a) Output is independent of control input. IS – Intrinsic safety & NIS – Non Intrinsic safety. All powered signals (24V, 48V, 110V….) What Is Time Invariant System? Sampled data system finds applications in, All rights reserved © 2020 Wisdom IT Services India Pvt. Cable tray is nothing but the way or media through which we lay the field cables in plant. Question 28. Cruise Control: System Modeling Automatic cruise control is an excellent example of a feedback control system found in many modern vehicles. Thermo well Details a: material, b: Construction, c: dimension, e: connection. Q.16. Control Systems ECE Questions with Answers are useful for competitive exams like GATE. 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. (sleeves & Mct). Wish you the best in your endeavor to learn and master Control Systems! The section contains questions and answers on mathematical preliminaries,nyquist stability creation, closed loop frequency and time domain analysis. Question 22. For IS signal IS JB’s used for NIS signal NIS JB’s used. This way of systematic learning will prepare anyone easily towards Control Systems interviews, online tests, examinations and certifications. a. c. … Menu. 106 TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. Amplidynes are provided with split-poles to provide space for inter poles. © 2011-2020 Sanfoundry. Transmitter: Tube routing, maintenance area, man approach, Valve : Hand wheel operations, Maintenance area, Etc. – 1000+ Multiple Choice Questions & Answers in Control Systems with explanations What Are The Major Types Of Control System? Question 35. What Are Control System Components? – Anyone wishing to sharpen their knowledge of Control Systems Subject What Are Temperature Elements? The control system in which the output quantity has no effect upon the input quantity are called open loop control system. Generally this is used to make alert to both the operator. Here’s the list of Best Reference Books in Control Systems. Pulse controlled or digital controlled electric drives. Distributed control system (DCS) and Programmable logic controller. Why Are Drag-cup-construction Used In Rotors Of Certain Fhp Machines For Control Purposes? Question 4. Question 9. Its Type? Its Support? CLOSE LOOP: This is measuring the process signals for operator’s action. Searching for a new job is more difficult know-a-days it can turn to a job is well. What is a feedback in Control System? 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. Permanent magnet type- largest stepping angle. 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. Question 26. What Is Time Invariant System? – Every MCQ set focuses on a specific topic in Control Systems Subject, Who should Practice these Control Systems Questions? C. Reduce the damping of the system. 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. A linear time invariant system can be represented by constant co-efficient differential equations. Which cable to use, depends upon hazards condition. This is done under one of the following: Objective. Over shoot is maximum difference between the transient and steady-state solutions for a unit step function input. 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. – Anyone preparing for aptitude test in Control Systems No sensors are needed to control the variables. LIST OF ATTEMPTED QUESTIONS AND ANSWERS. Ltd. Wisdomjobs.com is one of the best job search sites in India. What Are The Advantages And Disadvantages Of Open Loop Control Systems? The section contains questions on construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions. For analog I/p & o/p signal we can use same JB. In electronics control word is used to keep the output of a system within specified limits. Various components employed in control systems are servo-motors, amplidyne, synchros, stepper motors, tachometers, gyroscopes etc. Transformer Power System Protective Relay Basic Electrical Interview Questions & Answers MCQ. AC tachometer does not cause any maintenance problem of commentators and brushes. As an Example. Its Size? Means Tx sense the process and send it to the control room. Does chemistry workout in job interviews? What are avoidable questions in an Interview? Two phase and shaded pole type induction motor are used. Let us define the output of the plant as x,. View Answer. of cable occupancy in the cable tray and available tray size we have to choose it. Com mutating poles are required in amplidynes to give satisfactory commutation. In control system non-Linearity caused by gear trains is a) Backlash b) Dead space c) Coulomb friction d) saturation Electricalunits.com. Question 27. These short solved questions or quizzes are provided by Gkseries.
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