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UPPCL EE :CONTROL SYSTEM Quiz 5

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Question 1

The feedback system with characteristic equation s4 + 2Ks3 + s2 + 5s + 5 = 0 is

Question 2

Consider a feedback control system:

The root locus of the system has which of the following characteristics?

Question 3

For a constant gain k, the log magnitude curve in Bode plot is

Question 4

The polar plot of open loop transfer function is shown

Find the phase margin of the system

Question 5

Consider a unity negative feedback system with feedforward gain G(s) = . The root-loci of the system cross the imaginary axis at:

Question 6

The gain margin of a unity negative feedback system having forward transfer function  is,

Question 7

The root locus of the feedback control system having the characteristic equation s2 + 6Ks + 2s + 5 = 0 where K > 0, enter into real axis at.

Question 8

Bode magnitude plot is drawn between

Question 9

Find the number of poles in the left half plane (LHP), the right half plane (RHP) and on the jw-axis for the feedback control system as shown. Is the system stable?

Question 10

Which of the following transfer function has the given polar plot?

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