Automatic Control Systems Nyquist stability criterion uses open loop frequency response characteristics. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In a two phasor servomotor, the direction of rotation of the rotating field depends on Magnitudes of voltages applied to the two stator windings None of these Both magnitude and phase relationship of voltages applied to the two stator windings Phase relation of voltages applied to the two stator windings Magnitudes of voltages applied to the two stator windings None of these Both magnitude and phase relationship of voltages applied to the two stator windings Phase relation of voltages applied to the two stator windings ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which dc servomotor requires strongest permanent magnet? Either A or B Slotted armature Surface wound armature Surface wound with stationary rotor Either A or B Slotted armature Surface wound armature Surface wound with stationary rotor ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If the poles lie in second quadrant, damping ratio is 1 more than 1 zero less than 1 1 more than 1 zero less than 1 ANSWER DOWNLOAD EXAMIANS APP
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) 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 It is symmetric about -180° (0 dB, -180°) point on Nichols chart represent critical Point (-1, 0) 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 It is symmetric about -180° ANSWER DOWNLOAD EXAMIANS APP
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