Electrical Engineering: Control system MCQ
11. Question
Given the following polynomial equation
s3+5.5s2+8.5s+3=0
the number of roots of the polynomial, which have real parts strictly less than −1, is ________ .
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12. Question
Loop transfer function of a feedback system is G ( s ) H ( s ) = (s+3) s2(s-3). Take the Nyquist contour in the clockwise direction. Then, the Nyquist plot of G ( s ) H ( s ) encircles -1 + j 0
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13. Question
Consider a continuous-time system with input x(t) and output y (t) given by
y(t) = x(t) cos(t)
this system is
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14. Question
If Cis a circle |z| = 4 and f (z) = Z2/(Z2-3Z+2)2 , then is
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15. Question
The number of roots of the polynomial, s 7 + s 6 + 7s 5 + 14s 4 + 31s 3 + 73s 2 + 25s + 200,in the open left half of the complex plane is
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