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 (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 The distance of poles from origin depends on Neither A nor B Uqndamped natural frequency Both A and B Damping ratio Neither A nor B Uqndamped natural frequency Both A and B Damping ratio ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The relative stability of a system is given by Gain margin alone Phase margin alone Either (a) or (b) Both phase and gain margins Gain margin alone Phase margin alone Either (a) or (b) Both phase and gain margins ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The poles with greater displacement from the real axis correspond to Stable response Higher frequencies of oscillations Lower frequencies of oscillations Unbounded output Stable response Higher frequencies of oscillations Lower frequencies of oscillations Unbounded output ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a two phasor servomotor, the direction of rotation of the rotating field depends on Phase relation of voltages applied to the two stator windings Both magnitude and phase relationship of voltages applied to the two stator windings Magnitudes of voltages applied to the two stator windings None of these Phase relation of voltages applied to the two stator windings Both magnitude and phase relationship of voltages applied to the two stator windings Magnitudes of voltages applied to the two stator windings None of these ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which control action can never be used alone? Proportional Derivative Integral Both (b) and (c) Proportional Derivative Integral Both (b) and (c) ANSWER DOWNLOAD EXAMIANS APP
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