Control Systems Which of the following is/are represents the lag compensator? (s+5)/(s+6) (s+2)/(s+1) (s+2)/(s+5) both 1 and 2 (s+5)/(s+6) (s+2)/(s+1) (s+2)/(s+5) both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Error at corner frequency ωcf of first order control system is ------- ±4 db ±2 db ±1 db ±3 db ±4 db ±2 db ±1 db ±3 db ANSWER DOWNLOAD EXAMIANS APP
Control Systems In polar plots if the critical point '-1+j0' is enclosed then the system is -------- marginally stable stable critical stable unstable marginally stable stable critical stable unstable ANSWER DOWNLOAD EXAMIANS APP
Control Systems The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes? 120° 360° 60° 180° 120° 360° 60° 180° ANSWER DOWNLOAD EXAMIANS APP
Control Systems The characteristic equation of a feedback control system is given by s³ + 5s² + (k + 6)s + k = 0. In the root loci diagram, the asymptotes of the root loci for large 'k' meet at a point in the s-plane whose coordinates are (-2,0) (2,0) (1,0) (-1,0) (-2,0) (2,0) (1,0) (-1,0) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If the gain k is increased to infinity, then damping ratio will tend to become 0.707 infinite unity zero 0.707 infinite unity zero ANSWER DOWNLOAD EXAMIANS APP