Control Systems The following transfer function represents a phase-lead compensator? (4s+2)/(6s+1) 1/s (s+4)/(3s+6) (s+4)/(s+6) (4s+2)/(6s+1) 1/s (s+4)/(3s+6) (s+4)/(s+6) 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)/(s+1)² (2s+1)/(s+1)² (2s+2)/s² (2s+1)/s² (2s+2)/(s+1)² (2s+1)/(s+1)² (2s+2)/s² 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
Control Systems Which of the following statements is/are true? nether 1 nor 2 both 1 and 2 Centroid may be a part of root locus Centroid may not be a part of root locus nether 1 nor 2 both 1 and 2 Centroid may be a part of root locus Centroid may not be a part of root locus ANSWER DOWNLOAD EXAMIANS APP
Control Systems The input-output relationship of a linear time invariant continuous time system is given by r(t) = d²c(t)/dt² + 3 dc(t)/dt + 2 c(t) Where r(t) and c(t) are input and output respectively. What is the transfer function of the system equal to? 2/(s² + s + 2) 1/(s² + s + 2) 1/(s² + 3s + 2) 2/(s² + 3s + 2) 2/(s² + s + 2) 1/(s² + s + 2) 1/(s² + 3s + 2) 2/(s² + 3s + 2) ANSWER DOWNLOAD EXAMIANS APP
Control Systems A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant? 6 sec 5 sec 2 sec 4 sec 6 sec 5 sec 2 sec 4 sec ANSWER DOWNLOAD EXAMIANS APP
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