Automatic Control Systems
For any transfer function, the constant phase angle loci are

Either (a) or (b)
Neither (a) nor (b)
A family of straight lines
A family of circles

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP