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16

17 a)
b)

R5944 Pages: 3

function G(s) H(s) on the root locus.

PART D
Answer any twofull questions, each carries 10 marks.

The opep-loop transfer function of a unity feedback system 15
. Use asymptotic approach to plot the bode diagram and
$ 0.5s+1)(0.04s +1)
determine the value of K for a gain margin of 10.5 dB ∙
Draw the polar plot of open loop transfer function and determine
s+1)(s+ 2)

the phase margin and gain margin.
What is transportation lag in control system?

S{s+ 2)

.Comment on
s(s+10)

Draw the bode plot for the transfer function given by

the stability of the system

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