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GATE - EE - Control Systems - Test 1

Read the Instructions carefully.1. To login, enter your Name & click on the startbutton. Then you can see all the questions on the screen.2. Total durationof the examination is 60 minutes.

3. The clock will be set at the server. The countdown timer at the top right corner of screen will display the remaining time available for you to complete the examinationWhen the timer reaches zero, the examination will end by itself. Or you can click on submit my answersif you have completed the examination before the timer reachezero.4. Each examinationconsists of 20 questionscarrying a maximum of 30 marks. Out of which 10 Questionscarry 1-markeach & remaining 10 Questionscarry 2-markseach.5. All Questions are of Objectivetype.6. Choose one answer from the 4 options (A, B, C, D) given below the question, click on the bubble placed before the chosen option. To change your chosen answer,click on the bubble of another option.7. All questions that are not attempted will result in zero marks. However, wrong answers will result in NEGATIVEmarks. A wrong answer will result in deduction ofmarksfor a 1-mark questionand marksfor a 2-mark question.8. The results will be displayed on the screen after the examination is over. You can save the pdf file of the results by clicking on Print Report & thensave.Name

VINAY

58 min 50secsTotal Questions: 20

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The feedback system shown below oscillates at 2 rad/s when

A. K = 2 & a = 0.75

B. K = 3 & a = 0.75

C. K = 4 & a = 0.5

D. K = 2 & a = 0.5

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The gain margin of the system under closed loop unity negative feedback is

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The signal flow graph that DOES NOT model the plant transfer function H (s) is

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Submit my answers

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D.