Control Systems A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is s/(s+1) s/(s+1)2 1/s(s+1)2 (s+1)2/s s/(s+1) s/(s+1)2 1/s(s+1)2 (s+1)2/s ANSWER DOWNLOAD EXAMIANS APP
Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): GM and PM both +ve. GM -ve. PM - ve. GM and PM both -ve. GM and PM both +ve. GM -ve. PM - ve. GM and PM both -ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A second order under damped system has damping ratio of 0.3. Find the phase margin of the system? 30° 20° 60° 3° 30° 20° 60° 3° ANSWER DOWNLOAD EXAMIANS APP
Control Systems A property of phase lead compensation is that the gain margin is reduced. rise time of closed loop system is reduced. bandwidth of closed loop system is reduced. overshoot is increased. gain margin is reduced. rise time of closed loop system is reduced. bandwidth of closed loop system is reduced. overshoot is increased. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The graph of an electrical network has N nodes and B branches. The number of links, L with respect to the choice of a tree, is given by B + N. B - N + 1. N - 2B - 1. N - B + 1. B + N. B - N + 1. N - 2B - 1. N - B + 1. ANSWER DOWNLOAD EXAMIANS APP
Control Systems When compared to a 1st order LPF, a 2nd order LPF has higher cut off frequency. higher voltage gain. faster drop in filter response. lower voltage gain. higher cut off frequency. higher voltage gain. faster drop in filter response. lower voltage gain. ANSWER DOWNLOAD EXAMIANS APP
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