7-A type-1 plant is changed to type-2 feedback system by the following cascade control action(a)PD(b) PI(c) either PD or PI(d) neither PD nor PI8- A unity feedback system has open loop poles at s = -2±j2, s = 0 and zero at s= -3. The angles ofroot locus asymptotes with real axis and point of intersection of the asymptotes are, respectively,(a) (60°, -60°, 180°) and -2/3(b) (60°, -60°, 180°) and -3/2(c) (45°, -45°, 180°) and -2/3(d) (45°, -45°, 180°) and -3/49-The Nyquist plot of transfer function G H(s) of a closed-loop system is given in figure below,(a) the system is type-0GH - plane(b) the system is type-1ImI@=810-The dynamics of a system is of second order. The resonance peak of the frequency response is relatedto(a) Overshoot of time response(b) Damping ratio(c) Both (a) and (b)(d) None of above is correct(c) the system is type-2(d) the system is type-3Q.2/ Choose the correct answer for the following questions:1- A state variable formulation of a system is given by the equations0N=²+² >=[1¹]The transfer function of the system is(a)(b)(c)1(s+1)(s+2)1s+11S+2(d) none of the above answers are correct@=0 Re2- Consider the sampled data system shown below. The steady state error for unit ramp input is286) --- 2010 - 2017-12)R(s)ZOHY(s)s(TS+1)Tk

Type of the system is the number of poles at origin in the open loop transfer function

Answered: 7-A type-1 plant is changed to type-2…

7-A type-1 plant is changed to type-2 feedback system by the following cascade control action (a)PD (b) PI (c) either PD or PI (d) neither PD nor PI

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

7-A type-1 plant is changed to type-2 feedback system by the following cascade control action
(a)PD
(b) PI
(c) either PD or PI
(d) neither PD nor PI
8- A unity feedback system has open loop poles at s = -2±j2, s = 0 and zero at s= -3. The angles of
root locus asymptotes with real axis and point of intersection of the asymptotes are, respectively,
(a) (60°, -60°, 180°) and -2/3
(b) (60°, -60°, 180°) and -3/2
(c) (45°, -45°, 180°) and -2/3
(d) (45°, -45°, 180°) and -3/4
9-The Nyquist plot of transfer function G H(s) of a closed-loop system is given in figure below,
(a) the system is type-0
GH - plane
(b) the system is type-1
Im
I
@=8
10-The dynamics of a system is of second order. The resonance peak of the frequency response is related
to
(a) Overshoot of time response
(b) Damping ratio
(c) Both (a) and (b)
(d) None of above is correct
(c) the system is type-2
(d) the system is type-3
Q.2/ Choose the correct answer for the following questions:
1- A state variable formulation of a system is given by the equations
0
N=²+² >=[1¹]
The transfer function of the system is
(a)
(b)
(c)
1
(s+1)(s+2)
1
s+1
1
S+2
(d) none of the above answers are correct
@=0 Re
2- Consider the sampled data system shown below. The steady state error for unit ramp input is
286) --- 2010 - 2017-12)
R(s)
ZOH
Y(s)
s(TS+1)
T
k

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