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BARC EE : Control Systems Quiz-1

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Question 1

Open loop transfer function of unity negative feedback system is . The damping coefficient is 0.6. The value of unknown K0 is __________.

Question 2

The response of a system to an external input is called

Question 3

For a closed loop system to be stable the gain crossover frequency (ωgc) and phase crossover frequency (ωpc) will be related as-

Question 4

Which of the following have greatest percentage peak overshoot?

Question 5

Ther low frequency and high frequency asymptotes of Bode magnitude plot are respectively-60 db/decade and -40 db/decade. What is the type of the system?

Question 6

Which of the following statements about signal flow graphs is/are true?

1. Signal flow graph is applicable to linear and non-linear systems both.

2. Nodes in signal graph represent variable of the system.

3. Signal flow graph is a unique solution for a given system.

Question 7

A unit impulse response of a second order system is Then natural frequency and damping ratio of the system are respectively

Question 8

Considering the magnitude plot of the Bade diagram of a typical lag-lead compensator one can conclude that

Question 9

At a time instant equal to thrice the time constant of a stable first order LTI system the ratio of its unit step response value to the final asymptotic value of its unit step response is

Question 10

The input to output transfer function of the system shown in figure is

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Jul 29ESE & GATE EE