Control Systems The characteristic equation of a feedback control system is given by s³ + 5s² + (k + 6)s + k = 0. In the root loci diagram, the asymptotes of the root loci for large 'k' meet at a point in the s-plane whose coordinates are (1,0) (-1,0) (-2,0) (2,0) (1,0) (-1,0) (-2,0) (2,0) 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? ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = cot(ω1) Tω1 = tan(ω1) ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = cot(ω1) Tω1 = tan(ω1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems Which of the following is/are represents the lead compensator? (s+2)/(s+1) (s+5)/(s+6) both 2 and 3 (s+2)/(s+5) (s+2)/(s+1) (s+5)/(s+6) both 2 and 3 (s+2)/(s+5) ANSWER DOWNLOAD EXAMIANS APP
Control Systems The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value? 1/4 0 3/5 1 1/4 0 3/5 1 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Advantages of open loop control system is/are All of these reliable. simple and economical. accurate. All of these reliable. simple and economical. accurate. ANSWER DOWNLOAD EXAMIANS APP
Control Systems When the system gain is doubled the gain margin becomes? 2 times 1/2 times Remains unaffected None of these 2 times 1/2 times Remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
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