Automatic Control Systems A conditionally stable system is stable for the value of gain between two critical values. It is unstable if The gain is increased beyond upper critical value Both A and B None of these The gain is decreased below lower critical value The gain is increased beyond upper critical value Both A and B None of these The gain is decreased below lower critical value ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems If poles lie in first quadrant, damping ratio is less than 1 More than 1 1 Zero less than 1 More than 1 1 Zero ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems Which of the following features is not associated with Nichols chart? (0 dB, -180°) point on Nichols chart represent critical Point (-1, 0) M loci are centred about (0 dB, -180°) point The frequency at intersection of G(j?) locus and M = +3 dB locus gives bandwidth of closed loop system It is symmetric about -180° (0 dB, -180°) point on Nichols chart represent critical Point (-1, 0) M loci are centred about (0 dB, -180°) point The frequency at intersection of G(j?) locus and M = +3 dB locus gives bandwidth of closed loop system It is symmetric about -180° ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems A lag compensator Improves steady state behavior and speeds up 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 preserves the transient response of the system Improves steady state behavior and speeds up 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 preserves the transient response of the system ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems In the field controlled motor the entire damping comes from Motor friction and load Field resistance Armature resistance Back emf Motor friction and load Field resistance Armature resistance Back emf ANSWER DOWNLOAD EXAMIANS APP
Automatic Control Systems A lead compensator Increases the stability margin and speeds up the transient-response. Increases the stability margin None of these Speeds up the transient response Increases the stability margin and speeds up the transient-response. Increases the stability margin None of these Speeds up the transient response ANSWER DOWNLOAD EXAMIANS APP
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