If root loci plots of a particular control system intersect the imaginary axis at any point, then the gain margin (in dB) of the system will be

If root loci plots of a particular control system intersect the imagin

1.	If root loci plots of a particular control system intersect the imaginary axis at any point, then the gain margin (in dB) of the system will be
A.	0
B.	0.707
C.	1.0
D.	Infinite
Answer» B. 0.707

Discussion

No Comment Found

Related MCQs

Consider the transfer function\(G(s)H(s)=\frac{K}{(s^3+4s^2+s-6) }\)The root-locus plot of the system passes through s = 0. The value of K at this point will be
If a feedback control system has its open-loop transfer function\(G(s)H(s)=\frac{K}{s(s+2)(s^2+2s+5)}\)The coordinates of the centroid of the asymptotes of its root-locus are
For a 3rd order system given below, what is the frequency of oscillation?\(G(s)H(s) = \frac{K}{{({s^3} + 6{s^2} + 11s + 6)}}\)
If the number of zeros are less than the number of poles, i.e. Z < P, then the value of the transfer function becomes zero for s → ∞. Hence we say that there are zeros at infinity and the order of such zeros is
In root locus plot the angle of asymptote is given as __________.
It is required that a control system given below has two roots to the right of section S = -2. Pick the possible ‘T’.\(TF\left( s \right)=\frac{1}{{{s}^{2}}\left( s+T \right)}\)
An open loop transfer function G(s) of a system is\(G\left( s \right) = \frac{K}{{s\left( {s + 1} \right)\left( {s + 2} \right)}}\)for a unity feedback system, the breakaway point of the root loci on the real axis occurs at.
Consider the following statements about roots locus:1. The root locus is symmetrical about real axis.2. If a root locus branch moves along the real axis from an open-loop pole to zero or to infinity, this root locus branch is called real root branch.3. The breakaway points of the root locus are the solutions of \(\frac{{dK}}{{ds}} = 0\)Which of the above statements are correct?
In root-locus plot, the breakaway points
Consider the following statements:1. Adding a zero to the G(s)H(s) tends to push root locus to the left.2. Adding a pole to the G(s)H(s) tends to push root locus to the right.3. Complementary root locus (CRL) refers to root loci with positive K.4. Adding a zero to the forward path transfer function reduces the maximum overshoot of the system.Which of the above statements are correct?

If root loci plots of a particular control system intersect the imaginary axis at any point, then the gain margin (in dB) of the system will be

Discussion

No Comment Found

Related MCQs

Reply to Comment