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Electronic Instrumentation and Control: Stability Analysis In Time Domain
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Electronic Instrumentation and Control: Stability Analysis In Time Domain
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25 Questions

1. If the roots of the have negative real parts then the response is ____________
2. The necessary condition for the stability of the linear system is that all the coefficients of characteristic equation 1+G(s)H(s) =0, be real and have the :
3. The characteristic equation of a system is given by3s4+10s3+5s2+2=0. This system is:
4. Bounded input and Bounded output stability notion concerns with :
5. With reference to root locus, the complex conjugate roots of the characteristic equation of the O.L.T.F. given below G(s)H(s) =K(s+3)/(s+1)2, lie on
6. Root locus is used to calculate:
7. If root loci plots of a particular control system do not intersect the imaginary axis at any point, then the gain margin of the system will be:
8. Consider a negative feedback system where G(s) =1/(s+1) and H(s) =K/s(s+2). The closed loop system is stable for
9. If root of the characteristic equation has positive real part the system is :
10. Roots with higher multiplicity on the imaginary axis makes the system :
11. The order of the auxiliary polynomial is always:
12. The characteristic equation of a system is given as3s4+10s3+5s2+2=0. This system is :
13. Determine the value of K such that roots of characteristic equation given below lies to the left of the line s = -1. s3+10s2+18s+K.
14. The breakaway point calculated mathematically must always lie on the root locus.
15. The polynomial s4+Ks3+s2+s+1=0 the range of K for stability is _____________
16. A linear system can be classified as :
17. Root locus of s(s+2)+K(s+4) =0 is a circle. What are the coordinates of the center of this circle?
18. Routh Hurwitz criterion is better than root locus.
19. Routh Hurwitz criterion gives:
20. A linear time invariant system is stable if :
21. Consider the following statement regarding Routh Hurwitz criterion:
22. The characteristic equation of a system is given ass3+25s2+10s+50=0. What is the number of the roots in the right half s-plane and the imaginary axis respectively?
23. Which one of the following is not the property of root loci?
24. Asymptotic stability is concerned with:
25. The main objective of drawing root locus plot is :

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