Control Systems Which of the following transfer functions represent under damped second order systems? 2/(s² + 2s + 2) All of these 4/(s² + 2s + 4) 1/(s² + s + 1) 2/(s² + 2s + 2) All of these 4/(s² + 2s + 4) 1/(s² + s + 1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The type of a control system is obtained from -------------- transfer function? none of above. open loop both open loop and closed loop closed loop none of above. open loop both open loop and closed loop closed loop ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of a unity feedback system is given by G(s) = 1/(s+2)². The closed loop transfer function will have poles at -2+j,-2-j -2,-1 -2,-2 -2,2 -2+j,-2-j -2,-1 -2,-2 -2,2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is s(s²+3s+2)/5 5/s(s²+3s+2) 5/(s²+3s+2) (s²+3s+2)/5 s(s²+3s+2)/5 5/s(s²+3s+2) 5/(s²+3s+2) (s²+3s+2)/5 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Find the conditions for the system to be stable? Gain margin is negative but phase margin is positive Gain margin is positive but phase margin is negative Gain margin and phase margins are positive Gain margin and phase margins are negative Gain margin is negative but phase margin is positive Gain margin is positive but phase margin is negative Gain margin and phase margins are positive Gain margin and phase margins are negative 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 0.25 and 4 rad/s 0.25 and 2 rad/s 0.50 and 2 rad/s 0.50 and 4 rad/s 0.25 and 4 rad/s 0.25 and 2 rad/s 0.50 and 2 rad/s 0.50 and 4 rad/s ANSWER DOWNLOAD EXAMIANS APP
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