0 More Next Blog» [email protected] Dashboard Sign Out Electrical Interview Questions & Answers Ads by Google Questions and Answers Download Answers Interview Questions PDF Home Privacy Policy About Me Photography Course Earn a diploma through Hamstech's photography course and start clicking! photography.hamstech.com ECE Tutorials 10 March 2011 Control Systems Interview Questions Answers Ads by Google Questions and Answers Electrical Question: What is a System? Answer: When a number of elements or Interview Questions PDF components are connected in a sequence to Labels perform a specific function, the group of elements that all constitute a System Batteries (2) BHEL papers and Interviews (4) Electrical Question: What is Control System? Career Guidance (3) Answer: In a System the output and inputs are Circuit Breakers (4) interrelated in such a manner that the output Computer Networks Basics (2) quantity or variable is controlled by input quantity, Control Systems (12) then such a system is called Control System. DC Machines (12) The output quantity is called controlled variable or Digital Signal Processing (1) response and the input quantity is called command Electrical Basics (6) signal or excitation. Electrical Generators (2) Electrical Machines (11) Electrical Question: What are different types of Control Systems? Electrical Question Set (10) Answer: Two major types of Control Systems are 1) Open loop Control System 2) Closed Loop Control Systems Electrical Seminars (2) Open loop Control Systems: Engineering Services (IES) (2) The Open loop Control System is one in which the Output Quantity has no effect on the Input Quantity. Exam preparation (1) No feedback is present from the output quantity to the input quantity for correction. GATE 2012 (1) Closed Loop Control System: Hydro Power Plant (6) The Closed loop Control System is one in which the feedback is provided from the Output quantity to the Induction Motors (13) input quantity for the correction so as to maintain the desired output of the system. InstrumentationMeasurement (3) Lab Viva Questions (9) Electrical Question: What is a feedback in Control System? Lighting (1) NTPC papers and Interviews (3) Answer: The Feedback in Nuclear Power Plant (5) Related Topics Control System in one in Objective Questions (9) Control Systems Interview Questions Answers 2 which the output is sampled PLCs (4) Control Systems Interview Questions Answers 3 and proportional signal is fed Power Electronics (7) back to the input for Control Systems Interview Questions Answers 4 Power Factor (3) automatic correction of the PI Controllers in Process System Power Grid (2) error ( any change in desired Frequency Domain Analysis in Control System Power Systems (65) output) for futher processing Projects (2) Tweet Advantages of Frequency Domain Analysis to get back the desired Relays and Protection (18) Share Control System Lab Viva Questions output. SCADA Systems (6) Closed Loop – Open Loop Control Systems Advantages 0 Substation (15) Electrical Question: Why Synchronous Machines (9) Negative Feedback is preferred in the Control System? Thermal Power Plant (15) Answer: The role of Feedback in control system is to take the sampled output back to the input and Tips (1) compare output signal with input signal for error ( deviation from the desired result). Transformers (24) Negative Feedback results in the better stability of the system and rejects any disturbance signals and is less sensitive to the parameter variations. Hence in control systems negative feedback is considered. Transmission and Distribution (31) Ads by Google Electrical Question: What is the effect of positive feedback on stability of the system? Question Answer: Positive feedback is not used generally in the control system because it increases the error signal and drives the system to instability. But positive feedbacks are used in minor loop control Automation Control System systems to amplify certain internal signals and parameters Tweet Share 0 . Electrical Question Set Translate Select Language No comments: Powered by Translate Post a Comment Subscribe to: Post Comments (Atom) Followers Google+ Badge Google Followers (331) Next HVAC Certification Practice Tests Dharma Teja Electrician Exam Practice Tests Follow Eletrical Objective Questions Follow Privacy Policy Simple theme. Electrical Int… 14k likes Customized Term Insurance Like Page Term Insurance With 35 Be the first of your friends to like this Critical Illnesses Cover.in Search This Blog Search Labels: Control Systems. Powered by Blogger.edelweisstokio. Avail Tax Benefit ed.