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° (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 ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which of the following is open loop system? Respiratory system of animal System for controlling antirocket missiles Aqualing Wind screen wiper Respiratory system of animal System for controlling antirocket missiles Aqualing Wind screen wiper ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The addition of a pole to the open loop transfer function pulls the root locus Towards right or left depending on the position of new pole None of these To the left and making the system more stable To the right Towards right or left depending on the position of new pole None of these To the left and making the system more stable To the right ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems The relative stability of a system is given by Either (a) or (b) Both phase and gain margins Gain margin alone Phase margin alone Either (a) or (b) Both phase and gain margins Gain margin alone Phase margin alone ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In the field controlled motor the entire damping comes from Motor friction and load Field resistance Back emf Armature resistance Motor friction and load Field resistance Back emf Armature resistance ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems A lag compensator Speeds up the transient response of the system Improves steady state behavior of the system Improves steady state behavior and speeds up the transient response of the system Improves steady state behavior and preserves the transient response of the system Speeds up the transient response of the system Improves steady state behavior of the system Improves steady state behavior and speeds up the transient response of the system Improves steady state behavior and preserves the transient response of the system ANSWER DOWNLOAD EXAMIANS APP