Automatic Control Systems Which of the following features is not associated with Nichols chart? 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° (0 dB, -180°) point on Nichols chart represent critical Point (-1, 0) ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In force current analogy, displacement x is analogous to Voltage Charge Electrostatic energy Magnetic flux linkage Voltage Charge Electrostatic energy Magnetic flux linkage ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In the field controlled motor the entire damping comes from Field resistance Back emf Armature resistance Motor friction and load Field resistance Back emf Armature resistance Motor friction and load ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The permanent magnet field system of brushless dc servo- motor is generally on Rotor Partly on stator and partly on rotor Either (a) or (b) Stator Rotor Partly on stator and partly on rotor Either (a) or (b) Stator ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If poles lie in first quadrant, damping ratio is less than 1 Zero More than 1 1 less than 1 Zero More than 1 1 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The complicated shapes in the polar plots are only due to time constants in the numerator of transfer functions. False True False True ANSWER DOWNLOAD EXAMIANS APP
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