Automatic Control Systems The sensor generally used in incremental optical encoder is LED Either (a) or (b) LCD Photodiode LED Either (a) or (b) LCD Photodiode ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The permanent magnet field system of brushless dc servo- motor is generally on Either (a) or (b) Stator Rotor Partly on stator and partly on rotor Either (a) or (b) Stator Rotor Partly on stator and partly on rotor ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Nichols chart consists of Magnitude and phase angle loci in log-magnitude versus phase diagram None of these Constant magnitude loci Constant phase angle loci Magnitude and phase angle loci in log-magnitude versus phase diagram None of these Constant magnitude loci Constant phase angle loci ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The effect of adding poles and zeros can be determined quickly by Nichols chart Root locus Bode plot Nyquist plot Nichols chart Root locus Bode plot Nyquist plot 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, 2 and 3 1 and 2 All 3 and 4 1, 2 and 3 1 and 2 All 3 and 4 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
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