Automatic Control Systems For a stable system having two or more gain crossover frequencies the phase margin is measured at the highest crossover frequency. True False True False ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which of the following features is not associated with Nichols chart? 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° (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 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Nyquist stability criterion uses open loop frequency response characteristics. True False True False 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 None of these Both magnitude and phase relationship of voltages applied to the two stator windings Magnitudes of voltages applied to the two stator windings Phase relation of voltages applied to the two stator windings None of these Both magnitude and phase relationship of voltages applied to the two stator windings Magnitudes of voltages applied to the two stator windings ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which of the following can be used as a rotating amplifier in a control system? 1. Amplidyne 2. Separately excited dc generator 3. Synchro 4. Self excited dc generator 1 and 2 All 1, 2 and 3 3 and 4 1 and 2 All 1, 2 and 3 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems For type 1 system the velocity lag error is Inversely proportional to bandwidth of system Inversely proportional to gain constant Directly proportional to gain constant Independent of gain constant Inversely proportional to bandwidth of system Inversely proportional to gain constant Directly proportional to gain constant Independent of gain constant ANSWER DOWNLOAD EXAMIANS APP
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