Control Systems A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is -90° 180° -180° 90° -90° 180° -180° 90° 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
Control Systems Which of the following is/are the disadvantages of an open loop control system? Unreliable. Inaccurate. None of these both 1 and 2. Unreliable. Inaccurate. None of these both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as undamped system. over damped system. under damped system. critically damped system. undamped system. over damped system. under damped system. critically damped system. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The closed loop transfer function of a system is 25/(s² + 25). The settling time of the system is 25 sec 5 sec ∞ sec 1 sec 25 sec 5 sec ∞ sec 1 sec 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? cos-1((1 - α)/(1 + α) sin-1((1 - α)/(1 + α) tan-1((1 - α)/(2√α) both 1 and 3 cos-1((1 - α)/(1 + α) sin-1((1 - α)/(1 + α) tan-1((1 - α)/(2√α) both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS