Control Systems A open loop transfer function is given as G(s) = (s+2)/(s+1)(s-1). Find the number of encirclements about '-1+j0'? 3 1 0 2 3 1 0 2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems A cascade of three linear time invariant systems is causal and unstable. From this we conclude that 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. each system in the cascade is individually caused and unstable. at least one system is unstable and at least one system is causal. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its closed loop transfer function is (2s+1)/(s+1)² (2s+2)/s² (2s+1)/s² (2s+2)/(s+1)² (2s+1)/(s+1)² (2s+2)/s² (2s+1)/s² (2s+2)/(s+1)² ANSWER DOWNLOAD EXAMIANS APP
Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): GM and PM both +ve. PM - ve. GM -ve. GM and PM both -ve. GM and PM both +ve. PM - ve. GM -ve. GM and PM both -ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The unit step response of the system is 1 - e-t(1+t). Which is the system? critically stable oscillatory stable unstable critically stable oscillatory stable unstable ANSWER DOWNLOAD EXAMIANS APP
Control Systems Consider a point S = -3 + j4 in the s-plane. Then for a system with the open loop transfer function ? S is not on root locus S is on root locus None of these either 1 or 2 S is not on root locus S is on root locus None of these either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
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