Control Systems A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant? 2 sec 5 sec 4 sec 6 sec 2 sec 5 sec 4 sec 6 sec ANSWER DOWNLOAD EXAMIANS APP
Control Systems The magnitude of a transfer function G(jω)H(jω) at gain cross over frequency is 1 0 any of the above infinity 1 0 any of the above infinity ANSWER DOWNLOAD EXAMIANS APP
Control Systems A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is 5 4 6.5 10 5 4 6.5 10 ANSWER DOWNLOAD EXAMIANS APP
Control Systems Find the conditions for the system to be stable? Gain margin is negative but phase margin is positive Gain margin is positive but phase margin is negative Gain margin and phase margins are positive Gain margin and phase margins are negative Gain margin is negative but phase margin is positive Gain margin is positive but phase margin is negative Gain margin and phase margins are positive Gain margin and phase margins are negative ANSWER DOWNLOAD EXAMIANS APP
Control Systems Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to a value between -1 and +1 zero finite constant infinite a value between -1 and +1 zero finite constant infinite ANSWER DOWNLOAD EXAMIANS APP
Control Systems If two blocks having gains A and B respectively are in series connection, find the resultant gain using block diagram reduction technique? A+B A-B A/B A*B A+B A-B A/B A*B ANSWER DOWNLOAD EXAMIANS APP
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