Control Systems A system of constant voltage and constant frequency is called _________________ system. feedback. infinite. zero. None of these feedback. infinite. zero. None of these 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 0.50 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 0.25 and 4 rad/s 0.25 and 2 rad/s 0.50 and 2 rad/s ANSWER DOWNLOAD EXAMIANS APP
Control Systems A cascade of three linear time invariant systems is causal and unstable. From this we conclude that at least one system is causal and all systems are unstable. each system in the cascade is individually caused and unstable. the majority are unstable and the majority are causal. at least one system is unstable and at least one system is causal. at least one system is causal and all systems are unstable. each system in the cascade is individually caused and unstable. the majority are unstable and the majority are causal. at least one system is unstable and at least one system is causal. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A linear time invariant system has an impulse response e2t for t > 0 . If initial condition are 0 and input is e3t, the output for t > 0 is e2t - e3t. e3t - e2t. e5t. e2t + e3t. e2t - e3t. e3t - e2t. e5t. e2t + e3t. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Which system is also known as automatic control system? Closed loop control system Either 1 or 2 Nether 1 nor 2 Open loop control system Closed loop control system Either 1 or 2 Nether 1 nor 2 Open loop control system ANSWER DOWNLOAD EXAMIANS APP
Control Systems A unity feedback control system has forward loop transfer function as e-Ts/s(s+1). Its phase value will be zero at frequency ω1. Which of the following equations should be satisfied by ω1? Tω1 = cot(ω1) Tω1 = tan(ω1) ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = cot(ω1) Tω1 = tan(ω1) ω1 = cot(Tω1) ω1 = tan(Tω1) ANSWER DOWNLOAD EXAMIANS APP
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