Control Systems A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is (s+1)2/s 1/s(s+1)2 s/(s+1) s/(s+1)2 (s+1)2/s 1/s(s+1)2 s/(s+1) s/(s+1)2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Error at corner frequency ωcf of first order control system is ------- ±4 db ±2 db ±3 db ±1 db ±4 db ±2 db ±3 db ±1 db ANSWER DOWNLOAD EXAMIANS APP
Control Systems The value of 'a' in to give phase margin = 45o will be 0.9. 1.414. 1.18. 0.707. 0.9. 1.414. 1.18. 0.707. ANSWER DOWNLOAD EXAMIANS APP
Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): GM and PM both -ve. GM and PM both +ve. GM -ve. PM - ve. GM and PM both -ve. GM and PM both +ve. GM -ve. PM - ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is 5/(s²+3s+2) s(s²+3s+2)/5 (s²+3s+2)/5 5/s(s²+3s+2) 5/(s²+3s+2) s(s²+3s+2)/5 (s²+3s+2)/5 5/s(s²+3s+2) ANSWER DOWNLOAD EXAMIANS APP
Control Systems By using which of the following elements, mechanical translational systems are obtained? dash-pot mass element spring element All of these dash-pot mass element spring element All of these ANSWER DOWNLOAD EXAMIANS APP
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