Control Systems The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value? 0 1 1/4 3/5 0 1 1/4 3/5 ANSWER DOWNLOAD EXAMIANS APP
Control Systems A second order control system is defined by the following equation: 4 d²c(t)/dt² + 8 dc(t)/dt + 16 c(t) = 16 u(t) The damping ratio and natural frequency for this system are respectively 0.50 and 4 rad/s 0.25 and 2 rad/s 0.25 and 4 rad/s 0.50 and 2 rad/s 0.50 and 4 rad/s 0.25 and 2 rad/s 0.25 and 4 rad/s 0.50 and 2 rad/s ANSWER DOWNLOAD EXAMIANS APP
Control Systems A linear time invariant system has an impulse response e2t for t > 0 . If initial condition are 0 and input is e3t, the output for t > 0 is e5t. e2t + e3t. e2t - e3t. e3t - e2t. e5t. e2t + e3t. e2t - e3t. e3t - e2t. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Force balancing equation for elastic element (K) is (where, x = displacement) K d2x/dt2 K *x None of these K dx/dt K d2x/dt2 K *x None of these K dx/dt ANSWER DOWNLOAD EXAMIANS APP
Control Systems In polar plots if the critical point '-1+j0' is enclosed then the system is -------- unstable stable marginally stable critical stable unstable stable marginally stable critical stable ANSWER DOWNLOAD EXAMIANS APP
Control Systems Sparking between the contacts can be reduced by inserting a resistor in the line. a capacitor in series with the contacts. a reactor in the line. a capacitor in parallel with the contacts. a resistor in the line. a capacitor in series with the contacts. a reactor in the line. a capacitor in parallel with the contacts. ANSWER DOWNLOAD EXAMIANS APP
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