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

ANSWER DOWNLOAD EXAMIANS APP

Automatic Control Systems
In a two phasor servomotor, the direction of rotation of the rotating field depends on

Both magnitude and phase relationship of voltages applied to the two stator windings
None of these
Phase relation of voltages applied to the two stator windings
Magnitudes of voltages applied to the two stator windings

ANSWER DOWNLOAD EXAMIANS APP