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GATE 2022 : Control System Quiz 6

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Question 1

Bode plot is applicable for which of the following option ?

Question 2

Consider the following statements about Bode Plot.

1) The phase angle plot in Bode diagram is not affected by the variation in the gain of the system.

2) Transportation log can be conveniently handled by Bode plot.

3) Absolute and relative stability of only minimum phase systems can be determined by Bode plot.

Which of the above statement is/are correct?

Question 3

A Bode magnitude plot for a minimum phase system is given below.

The open loop transfer function of the system will be _________.

Question 4

Consider an asymptotic Bode plot of a minimum phase linear system as shown in the figure below. The transfer function for the above system will be

Question 5

The system having the characteristics equation given as s3 + (K + 0.5)s2 +4Ks + 50 = 0. Find the frequency of oscillation.

Question 6

Consider a unity feedback control system with an open loop transfer function of . Find the value of ‘K’ for which all three roots are equal.
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Nov 11ESE & GATE EE