Control Systems A open loop transfer function is given as G(s) = (s+2)/(s+1)(s-1). Find the number of encirclements about '-1+j0'? 2 1 0 3 2 1 0 3 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Force balancing equation for elastic element (K) is (where, x = displacement) K d2x/dt2 K *x K dx/dt None of these K d2x/dt2 K *x K dx/dt None of these ANSWER DOWNLOAD EXAMIANS APP
Control Systems Which of the following is/are the characteristics of negative feedback control system? Rejection of disturbance signals Low sensitivity to parameter variations All of these Reduction in gain at the expense of better stability Rejection of disturbance signals Low sensitivity to parameter variations All of these Reduction in gain at the expense of better stability ANSWER DOWNLOAD EXAMIANS APP
Control Systems The poles of the second order system are at -3 ± j4. The damping ratio of the system is 3/4 3/7 4/5 3/5 3/4 3/7 4/5 3/5 ANSWER DOWNLOAD EXAMIANS APP
Control Systems A property of phase lead compensation is that the bandwidth of closed loop system is reduced. gain margin is reduced. overshoot is increased. rise time of closed loop system is reduced. bandwidth of closed loop system is reduced. gain margin is reduced. overshoot is increased. rise time of closed loop system is reduced. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ? 1. 0. 2. 3. 1. 0. 2. 3. ANSWER DOWNLOAD EXAMIANS APP