Control Systems The following transfer function represents a phase-lead compensator? 1/s (4s+2)/(6s+1) (s+4)/(s+6) (s+4)/(3s+6) 1/s (4s+2)/(6s+1) (s+4)/(s+6) (s+4)/(3s+6) 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) Tω1 = cot(ω1) Tω1 = tan(ω1) ω1 = tan(Tω1) ω1 = cot(Tω1) Tω1 = cot(ω1) Tω1 = tan(ω1) ω1 = tan(Tω1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems A open loop transfer function is given as G(s) = (s+2)/(s+1)(s-1). Find the number of encirclements about '-1+j0'? 2 1 3 0 2 1 3 0 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Which of the following represents the value of resonant frequency (ωr)? (ωn) √(1-ζ²) (ωn) √(1-2ζ²) 2*(ωn) √(1-ζ²) (ωn) √(1-ζ²/2) (ωn) √(1-ζ²) (ωn) √(1-2ζ²) 2*(ωn) √(1-ζ²) (ωn) √(1-ζ²/2) ANSWER DOWNLOAD EXAMIANS APP
Control Systems Time response for a second order control system depends on value of ξ. If ξ>1 then the system is called as under damped system. over damped system. undamped system . critically damped system. under damped system. over damped system. undamped system . critically damped system. 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+2)/s² (2s+1)/(s+1)² (2s+1)/s² (2s+2)/(s+1)² (2s+2)/s² (2s+1)/(s+1)² ANSWER DOWNLOAD EXAMIANS APP
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