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All-pass & Minimum-phase Systems

All-pass & Minimum-phase Systems 1. A minimum phase unity feedback system has a bode plot with a constant slope of -20dB/decade for all frequencies. What is the value of the…

Bode Plots MCQ

Bode Plots MCQ 1. Assertion (A): Relative stability of the system reduces due to the presence of transportation lag. Reason (R): Transportation lag can be conveniently handled by Bode plot.…

Polar Plots MCQ

Polar Plots MCQ 1. The constant M circle for M=1 is the a) straight line x=-1/2 b) critical point (-1j0) c) circle with r= 0.33 d) circle with r=0.67 Answer:…

Frequency Response MCQ

Frequency Response MCQ 1. Scientist Bode have contribution in : a) Asymptotic plots b) Polar plots c) Root locus technique d) Constant M and n circle Answer: a Explanation: Asymptotic…

Construction of Root Loci

Construction of Root Loci MCQ 1. 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 a) Straight…

Root Locus in Control Systems

Root Locus in Control Systems MCQ 1. Consider the loop transfer function K(s+6)/(s+3)(s+5) In the root locus diagram the centroid will be located at: a) -4 b) -1 c) -2…

Root Locus Concepts Objective Questions

Root Locus Concepts Objective Questions 1. Which one of the following statements is not correct? a) Root loci can be used for analyzing stability and transient performance b) Root loci…

Relative Stability Analysis

Relative Stability Analysis MCQ 1. A system with unity feedback having open loop transfer function as G(s) = K(s+1)/s3+as2+2s+1. What values of ‘K’ and ’a’ should be chosen so that…

Routh-Hurwitz Stability Criterion

Routh-Hurwitz Stability Criterion MCQ 1. Routh Hurwitz criterion gives: a) Number of roots in the right half of the s-plane b) Value of the roots c) Number of roots in…

Necessary Conditions for Stability & Non-Linear Systems

Necessary Conditions for Stability & Non-Linear Systems MCQ 1. The techniques of linear system can be used in the non-linear system entirely: a) True b) False Answer: a Explanation: The…