Control Systems The optimum values of damping ratio is -------------- 0 to 2 0.3 to 5 0.3 to 0.7 0.9 to 1.1 0 to 2 0.3 to 5 0.3 to 0.7 0.9 to 1.1 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. 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. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes? 360° 60° 120° 180° 360° 60° 120° 180° ANSWER DOWNLOAD EXAMIANS APP
Control Systems Certain control system has input u(t) and output c(t). If the input is first passed through a block having transfer function e-s and unit gain is applied to the applied to the system. The modified output will be c(t).u(t-1) c(t-1).u(t-1) c(t)u(t) c(t-1).u(t) c(t).u(t-1) c(t-1).u(t-1) c(t)u(t) c(t-1).u(t) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its open loop transfer function is (2s+1)/s² (2s+2)/s² (2s+2)/(s+1)² (2s+1)/(s+1)² (2s+1)/s² (2s+2)/s² (2s+2)/(s+1)² (2s+1)/(s+1)² ANSWER DOWNLOAD EXAMIANS APP
Control Systems The Laplace transform of a transportation lag of 5 seconds is 1/(s+5). e5s. e-5s. 1/(s-5). 1/(s+5). e5s. e-5s. 1/(s-5). ANSWER DOWNLOAD EXAMIANS APP
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