Control Systems Which of the following is/are the characteristics of negative feedback control system? Rejection of disturbance signals Reduction in gain at the expense of better stability Low sensitivity to parameter variations All of these Rejection of disturbance signals Reduction in gain at the expense of better stability Low sensitivity to parameter variations All of these ANSWER DOWNLOAD EXAMIANS APP
Control Systems The magnitude of a transfer function G(jω)H(jω) at gain cross over frequency is 1 0 infinity any of the above 1 0 infinity any of the above ANSWER DOWNLOAD EXAMIANS APP
Control Systems The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its open loop transfer function is (2s+2)/(s+1)² (2s+2)/s² (2s+1)/(s+1)² (2s+1)/s² (2s+2)/(s+1)² (2s+2)/s² (2s+1)/(s+1)² (2s+1)/s² ANSWER DOWNLOAD EXAMIANS APP
Control Systems If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system? 0.5 1 4 2 0.5 1 4 2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems A second order control system has a transfer function 16/(s² + 4s + 16). What is the time for the first overshoot? π/2√3 sec π/√3 sec 2π/√3 sec π/4√3 sec π/2√3 sec π/√3 sec 2π/√3 sec π/4√3 sec ANSWER DOWNLOAD EXAMIANS APP
Control Systems The unit impulse response of second order system is 1/6 * e-0.8t sin(0.6t). THen the natural frequency is 1 rad/s 0.8 rad/s 2 rad/s 0.6 rad/s 1 rad/s 0.8 rad/s 2 rad/s 0.6 rad/s ANSWER DOWNLOAD EXAMIANS APP
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