Generally this is used to make alert to both the operator. Hot water enters the tank at temperature Ti(t) where is it is cooled via a well-mixed cooling jacket (also containing water) before leaving at temperature T(t). The section contains questions on root locus and construction of root loci. Question 9. Solved examples with detailed answer description, explanation are given and it would be easy to understand. These are the control systems which handles fields I/Os. Only care has to be taken considering adequate space for laying cable, considering their bends.Etc. Two phase and shaded pole type induction motor are used. 2. According to the no. 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. AC tachometer does not cause any maintenance problem of commentators and brushes. Material of construction (Valve body, Trim), Ladder type (made in Rungs type construction). How An Ac Tachometer Is Superior To Dc Tachometer? CLOSE LOOP: This is measuring the process signals for operator’s action. Question 24. Question 5. For analog I/p & o/p signal we can use same JB. Question 2. A linear time invariant system can be represented by constant co-efficient differential equations. of cable occupancy in the cable tray and available tray size we have to choose it. c. … Which cable to use, depends upon hazards condition. What are the types of control system? open-loop control system and closed-loop control system. C'ontrol system. Menu. Question 35. In a System the output and inputs are interrelated in such a manner that … The section contains questions on stability, conditions for stability, non-linear systems and routh-hurwitz stability criterion. What Is Meant By Instrument Location & Jb Location? All Rights Reserved. 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. Temperature element. – Every MCQ set focuses on a specific topic in Control Systems Subject, Who should Practice these Control Systems Questions? As an Example. © 2011-2020 Sanfoundry. The output of each integrator or delayed integrator can be a state variable. Volt free (24V) contact (NO/NC) by instruments (all type of switches, ex. For DCS I/p & o/p and PLC I/p & o/p we used separate JB’s. Question 17. A motor in which the rotor turns in discrete movements is called a stepper motor. The section contains questions on linearizing effect and regenerative feedback, effects of disturbance signal by using feedback, feedback and non-feedback systems. Question 31. What Are Analog Input/output & Digital Input/output? Explore the latest questions and answers in Management Control, and find Management Control experts. What Are The Two Types Of Stepper Motors? Question 26. Better response to very small controls signals. Answer: Both controller and compensator has the function of improving stability and response of a system. 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. 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. India's best GATE Courses with a wide coverage of all topics! This is done under one of the following: Objective. Question 20. 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. Loop power indicators: Man approach Illumination from Electrical if instrument is not going to provide. What Is Feedback In Control System? Answer: Control means to keep something under limits. Question 27. There is no compensation for any disturbances entering the system since it has fixed input. Answer: The Feedback in Control System in one in which the … 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. But controller is incorporated in the system during manufacturing while compensator is incorporated when system fails to work according to specifications. Amplidynes are provided with split-poles to provide space for inter poles. We have collect following information to prepare D/s. 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. Why Area Commutating Poles Required In Amplidynes? The section contains questions and answers on controller components, stepper motors, linear approximation of nonlinear systems, control system classification, hydraulic and pneumatic systems. Question 42. 4-20 mA signals from instrument (transmitters) are analog input to control system. Desired response can be obtained by appropriate design. Question 22. Question 19. What Is The Use For Cable Entry In Control Room? Permanent –magnet type and variable reluctance type motor are stepper motor. This means that the output is not feedback to the input for correction. (b) Output is dependent … Why Is Series Compensating Winding Employed In The Amplidynes? In an open loop control system. Obtain a state-space model of the system shown in Figure 3-51. Question 4. Numerically controlled machine tool operations. 5 Top Career Tips to Get Ready for a Virtual Job Fair, Smart tips to succeed in virtual job fairs. Systems which are governed by the same types of equations are called analogous systems. Let us define the output of the plant as x,. DCS handles more nos of I/Os rather than PLC. In the process plant Control room built considering the non-hazardous area. Limit the acceleration of the motor thing. 1. If system's output characteristics do not change with time, then it is called as time invariant system. What Is Cable Tray? What do you mean by asymptotic stability? | Page - 71 It is the mathematical expression that relates the system output to the system input and so describes the behavior of a system. B. High speed tin plate rolling mills using quantized data for control. Question 33. Question 18. Large complex systems using telemetry links based on pulse modulation (PM) translation of data. Page 1 The control system in which the output quantity has no effect upon the input quantity are called open loop control system. Question 6. Limit switch, press,temp,flow,level switch) are digital input to control system. The section contains questions on servomechanims, parameter optimization, optimal control and state regulator problems, output regulator tracking problem and infinite-time regulator problem. To be precise about Control Systems is a system of devices or set of devices, that manages, commands, directs or regulates the behaviour of other device(s) or system(s) to achieve desire results. A linear system is a system that follows the law of superposition and homogeneity. Question 7. Here’s the list of Best Reference Books in Control Systems. 24x7 Online Chat Support. Cruise Control: System Modeling Automatic cruise control is an excellent example of a feedback control system found in many modern vehicles. The characteristics of feedback are: increased bandwidth, increased accuracy, reduced distortion and non linearity and tendency towards oscillations or instability. Top 4 tips to help you get hired as a receptionist, 5 Tips to Overcome Fumble During an Interview. Where Is Stepper Motor Used? For open control system which of the following statements is incorrect ? That block holds the cables which are entering into the CCR. The system involves one integrator and two delayed integrators. Solution. Question 14. In the above mentioned case the PLCs can be get connected with the DCS with the help of soft link. Does chemistry workout in job interviews? One should spend 1 hour daily for 2-3 months to learn and assimilate Control Systems comprehensively. Enlist The Applications Of Sampled Data Systems? Control Systems Quiz Questions and Answers Start online test with Control Systems quiz for Gate electrical engineering exam 2019-20. 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. Permanent magnet type- largest stepping angle. These short objective type questions with answers are very important for Board exams as well as competitive exams. In drag-cup-construction all heavy iron lamination remain stationary and only a light cup rotates, so the inertia is quite small. (a) Output is independent of control input. 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. Question 30. (b) Output is dependent … 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. Sampled data system finds applications in, All rights reserved © 2020 Wisdom IT Services India Pvt. Thermo well Details a: material, b: Construction, c: dimension, e: connection. A feedback is said to exist in a system if the cause and effect between variables is interrelated. Top 10 facts why you need a cover letter? This consists of Instrument location considering the piping drawing given from piping dept. D. Increase the gain margin. 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. What Is Meant By Control System? What Are The Advantages And Disadvantages Of Closed Loop Control System? Question 36. LIST OF ATTEMPTED QUESTIONS AND ANSWERS. In general, the difference between the desired output and the actual output is … Self-excitation can cause considerable over-loading of the amplidyne and totally disrupt operation of system containing the amplidyne. 1. Improve your score by attempting Control Systems objective type MCQ questions listed along with detailed answers. Question 16. 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. Control Systems Questions are essential in the Electronics field. (sleeves & Mct). What Is Time Invariant System? Where the PID controller takes control action and that given to the final control element as per the process requirement. In other words, the definition of control system can be rewritten as A control system is a system, which controls other system. Same way depending upon the accessibility we decide the location of JB and marking of it into the instrument location plan is JB location. The sections covers questions on neural networks, adaptive control and fuzzy logic. 15 signs your job interview is going horribly, Time to Expand NBFCs: Rise in Demand for Talent. 4-20 mA signals to instrument (I/p & electro pneumatic positioner) are analog output from control system. How Can Freshers Keep Their Job Search Going? A control system manages commands, directs or regulates the behavior of other devices or 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. Instrument JB’s depending upon hazards area classification. About. For The Same Number Of Poles Which Stepper Motor Produces? What Is Time Invariant System? Answer: A. It will immensely help anyone trying to crack an exam or an interview. 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. Get Answer Now! But for Digital I/p & o/p we have to use separate JB’s. Question 8. No sensors are needed to control the variables. Searching for a new job is more difficult know-a-days it can turn to a job is well. 106 TOP CONTROL SYSTEMS LAB VIVA Questions and Answers PDF. – Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews) Question 29. In control system non-Linearity caused by gear trains is a) Backlash b) Dead space c) Coulomb friction d) saturation Electricalunits.com. – 1000+ Multiple Choice Questions & Answers in Control Systems with explanations 4.Define closed loop control system. What Are The Advantages And Disadvantages Of Open Loop Control Systems? Control Systems ECE Questions with Answers are useful for competitive exams like GATE. What Is Control System? – Anyone preparing for aptitude test in Control Systems C. Reduce the damping of the system. They are designed to sustain the fire for fixed time duration. Why Amplidynes Are Provided With Split-poles? Types 80,150,300,450,600 & 900. What are avoidable questions in an Interview? Q.2. 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 section contains questions on construction of phase trajectories, stability of nonlinear system and stability analysis by describing the functions. Com mutating poles are required in amplidynes to give satisfactory commutation. The system error is the ideal value of the controlled variable minus the value of the final controlled variable. Do you have employment gaps in your resume? Pulse controlled or digital controlled electric drives. 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.

control system questions and answers

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