Control Systems A transfer function has a zero at s = -1 and poles at s = -1 ± j1. The multiplier being unity, if the input is step function, the steady state response is given by 1∠0° 2∠90° 0.5∠0° 0.5∠10° 1∠0° 2∠90° 0.5∠0° 0.5∠10° ANSWER DOWNLOAD EXAMIANS APP
Control Systems Given a unity feedback system with G(s) = k/s(s+4), the value of k for damping ratio of 0.5 is 1 4 16 64 1 4 16 64 ANSWER DOWNLOAD EXAMIANS APP
Control Systems At which frequency does the Bode magnitude plots for the functions K/S2 have gain crossover frequency ω = K2 rad/sec. ω = 0 rad/sec. ω = K rad/sec. ω = √K rad/sec. ω = K2 rad/sec. ω = 0 rad/sec. ω = K rad/sec. ω = √K rad/sec. 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 = tan(Tω1) Tω1 = cot(ω1) ω1 = cot(Tω1) Tω1 = tan(ω1) ω1 = tan(Tω1) Tω1 = cot(ω1) ω1 = cot(Tω1) Tω1 = tan(ω1) ANSWER DOWNLOAD EXAMIANS APP
Control Systems A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is -180° 180° 90° -90° -180° 180° 90° -90° 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+1)/(s+1)² (2s+2)/s² (2s+2)/(s+1)² (2s+1)/s² (2s+1)/(s+1)² (2s+2)/s² (2s+2)/(s+1)² ANSWER DOWNLOAD EXAMIANS APP
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