Control Systems A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is 6.5 10 4 5 6.5 10 4 5 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Lead compensator is used to improve ------------------ Transient response None of these Both 1 and 2 Steady state response Transient response None of these Both 1 and 2 Steady state response ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of phase lead compensator is given by , where, T > 0, α < 0. What is the maximum phase shift provided by this compensator? both 1 and 3 tan-1((1 - α)/(2√α) sin-1((1 - α)/(1 + α) cos-1((1 - α)/(1 + α) both 1 and 3 tan-1((1 - α)/(2√α) sin-1((1 - α)/(1 + α) cos-1((1 - α)/(1 + α) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of non unity negative feedback system is , then the number of root locus branches equal to 0. 2. 1. 3. 0. 2. 1. 3. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Advantages of open loop control system is/are simple and economical. reliable. All of these accurate. simple and economical. reliable. All of these accurate. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The system is initially critical damped. If the gain of the system is doubled, then it will exhibit over damped characteristics. under damped characteristics. critical damped characteristics. undamped characteristics. over damped characteristics. under damped characteristics. critical damped characteristics. undamped characteristics. ANSWER DOWNLOAD EXAMIANS APP