Control Systems The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the initial value? 1/4 0 3/5 3/9 1/4 0 3/5 3/9 ANSWER DOWNLOAD EXAMIANS APP
Control Systems The open loop transfer function of a unity feedback system is given by G(s) = 1/(s+2)². The closed loop transfer function will have poles at -2,2 -2,-1 -2+j,-2-j -2,-2 -2,2 -2,-1 -2+j,-2-j -2,-2 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 16 64 1 4 16 64 1 4 ANSWER DOWNLOAD EXAMIANS APP
Control Systems If two blocks having gains A and B respectively are in parallel connection, find the resultant gain using block diagram reduction technique? A/B A+B A*B 2(A+B) A/B A+B A*B 2(A+B) ANSWER DOWNLOAD EXAMIANS APP
Control Systems A system is stable for (where GM = Gain Margin and PM = Phase Margin): GM and PM both +ve. PM - ve. GM and PM both -ve. GM -ve. GM and PM both +ve. PM - ve. GM and PM both -ve. GM -ve. ANSWER DOWNLOAD EXAMIANS APP
Control Systems None of the poles of a linear control system lie in the right half of s plane. For a bounded input, the output of this system none of these. always bounded. could be unbounded. tends to zero. none of these. always bounded. could be unbounded. tends to zero. ANSWER DOWNLOAD EXAMIANS APP
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