Which of the following statements concerning the Bode plot are correct?
1. The relative stability can be obtained using Bode plots.
2. For a system with time delay, the phase plot does not reach a minimum value.
3. For a minimal system phase system, the phase plot reaches a minimum value.
4. Gain and phase margin can be used to ascertain the stability of a system using Bode plot.
A. 1, 2, 3 and 4 are correct
B. Only 3 and 4 are correct
C. Only 1, 2 and 4 are correct
D. Only 2, 3 and 4 are correct
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Control Systems
In root locus analysis the breakaway and break in points
A. lie on the real axis
B. Either lie on the real axis or occur in complex conjugate pairs
C. Always occur in complex conjugate pairs
D. None of the above
Which of the following features is not associated with Nichols chart?
A. (0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)
B. It is symmetric about -180°
C. M loci are centred about (0 dB, -180°) point
D. The frequency at intersection of G (j$$\omega $$) locus and M = +3 dB locus gives bandwidth of closed loop system
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