Control Systems Which of the following transfer functions represent under damped second order systems? 4/(s² + 2s + 4) 1/(s² + s + 1) 2/(s² + 2s + 2) All of these 4/(s² + 2s + 4) 1/(s² + s + 1) 2/(s² + 2s + 2) All of these ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become 0.707 zero unity infinite 0.707 zero unity infinite ANSWER DOWNLOAD EXAMIANS APP
Control Systems The step response of the system described by the differential equation will be (1/6)*(1-e-6t). e6t. non of above. e-3t u(t). (1/6)*(1-e-6t). e6t. non of above. e-3t u(t). ANSWER DOWNLOAD EXAMIANS APP
Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): PM - ve. GM and PM both +ve. GM and PM both -ve. GM -ve. PM - ve. GM and PM both +ve. GM and PM both -ve. GM -ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Given the transfer function of a system. Which of the following characteristics does it have? Under damped any of the above Critical damped Over damped Under damped any of the above Critical damped Over damped ANSWER DOWNLOAD EXAMIANS APP
Control Systems In frequency response analysis of second order system, the error at corner frequency is -10 logξ 20 log2ξ -20 log2ξ 10 logξ -10 logξ 20 log2ξ -20 log2ξ 10 logξ ANSWER DOWNLOAD EXAMIANS APP
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