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)2 (s+1)2/s 1/s(s+1)2 s/(s+1) s/(s+1)2 (s+1)2/s 1/s(s+1)2 s/(s+1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems When compared to a 1st order LPF, a 2nd order LPF has higher voltage gain. higher cut off frequency. lower voltage gain. faster drop in filter response. higher voltage gain. higher cut off frequency. lower voltage gain. faster drop in filter response. ANSWER DOWNLOAD EXAMIANS APP
Control Systems For a unity feedback control system open loop transfer function then position error constant is 40. 0. 20. infinity. 40. 0. 20. infinity. ANSWER DOWNLOAD EXAMIANS APP
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 initial value? 3/9 3/5 1/4 0 3/9 3/5 1/4 0 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Let P = Number of open loop poles and Z = Number of open loop zeros and P > Z, find the number of branches terminating at ∞? Any of the above Z P - Z P Any of the above Z P - Z P ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of a plant is T(s) = 5/(s+5)(s² + 5 + 1). The second order approximation of T(s) using dominant pole concept is 5/(s² + 5 + 1) 1/(s² + 5 + 1) 1/(s+1)(s+5) 5/(s+1)(s+5) 5/(s² + 5 + 1) 1/(s² + 5 + 1) 1/(s+1)(s+5) 5/(s+1)(s+5) ANSWER DOWNLOAD EXAMIANS APP
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