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
Control Systems In signal flow graph input node is node having only------------ incoming branches. None of these outgoing branches. both 1 and 2. incoming branches. None of these outgoing branches. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A cascade of three linear time invariant systems is causal and unstable. From this we conclude that each system in the cascade is individually caused and unstable. at least one system is unstable and at least one system is causal. the majority are unstable and the majority are causal. at least one system is causal and all systems are unstable. each system in the cascade is individually caused and unstable. at least one system is unstable and at least one system is causal. the majority are unstable and the majority are causal. at least one system is causal and all systems are unstable. 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) ω1 = tan(Tω1) ω1 = cot(Tω1) Tω1 = tan(ω1) Tω1 = cot(ω1) ω1 = tan(Tω1) ω1 = cot(Tω1) Tω1 = tan(ω1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems A property of phase lead compensation is that the bandwidth of closed loop system is reduced. overshoot is increased. gain margin is reduced. rise time of closed loop system is reduced. bandwidth of closed loop system is reduced. overshoot is increased. gain margin is reduced. rise time of closed loop system is reduced. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Error at corner frequency ωcf of first order control system is ------- ±3 db ±2 db ±4 db ±1 db ±3 db ±2 db ±4 db ±1 db ANSWER DOWNLOAD EXAMIANS APP
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