Control Systems A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is s/(s+1)2 (s+1)2/s s/(s+1) 1/s(s+1)2 s/(s+1)2 (s+1)2/s s/(s+1) 1/s(s+1)2 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'? 1 3 2 0 1 3 2 0 ANSWER DOWNLOAD EXAMIANS APP
Control Systems The unit step response of the system is 1 - e-t(1+t). Which is the system? critically stable oscillatory stable unstable critically stable oscillatory stable unstable ANSWER DOWNLOAD EXAMIANS APP
Control Systems Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)? 90°,180° 90°,270° 60°,240° 0°, 180° 90°,180° 90°,270° 60°,240° 0°, 180° ANSWER DOWNLOAD EXAMIANS APP
Control Systems What is the order of a closed loop control system for a plant with a transfer function equal to G(s) = k/s²(1+Ts) and with unity feedback 3 1 2 0 3 1 2 0 ANSWER DOWNLOAD EXAMIANS APP
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∠10° 0.5∠0° 1∠0° 2∠90° 0.5∠10° 0.5∠0° ANSWER DOWNLOAD EXAMIANS APP