Automatic Control Systems
The addition of a pole to the open loop transfer function pulls the root locus

None of these
Towards right or left depending on the position of new pole
To the left and making the system more stable
To the right

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Automatic Control Systems
Which of the following features is not associated with Nichols chart?

(0 dB, -180°) point on Nichols chart represent critical Point (-1, 0)
It is symmetric about -180°
The frequency at intersection of G(j?) locus and M = +3 dB locus gives bandwidth of closed loop system
M loci are centred about (0 dB, -180°) point

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