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 = tan(ω1) Tω1 = cot(ω1) ω1 = cot(Tω1) ω1 = tan(Tω1) Tω1 = tan(ω1) Tω1 = cot(ω1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems Transfer function of zero order hold response is (1 / s) × (1 - est). (1 / s) × (1 - e-st). (1 / s) × e-st. (s) × (1 - est). (1 / s) × (1 - est). (1 / s) × (1 - e-st). (1 / s) × e-st. (s) × (1 - est). ANSWER DOWNLOAD EXAMIANS APP
Control Systems Lead compensator is used to improve ------------------ Steady state response Transient response None of these Both 1 and 2 Steady state response Transient response None of these Both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Control Systems The characteristic equation of a feedback control is 2s4 + s3 + 3s2 + 5s + 10 = 0. The no of roots in the right half of the s-plane is 2. 3. 4. 0. 2. 3. 4. 0. ANSWER DOWNLOAD EXAMIANS APP
Control Systems Let P = Number of open loop poles and Z = Number of open loop zeros and P > Z, find the number of branches terminating at ∞? Any of the above Z P P - Z Any of the above Z P P - Z ANSWER DOWNLOAD EXAMIANS APP
Control Systems The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is 10. 2. 5. 1. 10. 2. 5. 1. ANSWER DOWNLOAD EXAMIANS APP
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