Automatic Control Systems A system is highly oscillatory if Gain margin is high and phase margin is 180° Gain margin is high Gain margin is close to 1 or phase margin is zero Gain margin is close to 1 Gain margin is high and phase margin is 180° Gain margin is high Gain margin is close to 1 or phase margin is zero Gain margin is close to 1 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which of the following features is not associated with Nichols chart? M loci are centred about (0 dB, -180°) point 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 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) ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Transport lag usually exists in Thermal systems Pneumatic systems Hydraulic systems and thermal systems Thermal, hydraulic and pneumatic systems Thermal systems Pneumatic systems Hydraulic systems and thermal systems Thermal, hydraulic and pneumatic systems ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The permanent magnet field system of brushless dc servo- motor is generally on Either (a) or (b) Rotor Stator Partly on stator and partly on rotor Either (a) or (b) Rotor Stator Partly on stator and partly on rotor ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Lag compensation permits a high gain at low frequencies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The poles with greater displacement from the real axis correspond to Stable response Unbounded output Higher frequencies of oscillations Lower frequencies of oscillations Stable response Unbounded output Higher frequencies of oscillations Lower frequencies of oscillations ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS