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Control Systems
The transfer function of a linear time invariant system is given as G(s) = 10/(s² + 10s + 10). The steady state value of the output of the system for step input applied at time instant t=2 sec will be
undefined
1
infinity
0
undefined
1
infinity
0
Answer
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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
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Control Systems
A second order under damped system has damping ratio of 0.3. Find the phase margin of the system?
60°
30°
3°
20°
60°
30°
3°
20°
Answer
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Control Systems
The unit step response of the system is 1 - e-t(1+t). Which is the system?
critically stable
unstable
stable
oscillatory
critically stable
unstable
stable
oscillatory
Answer
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Control Systems
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is
0.263
0.386
0.953
0.707
0.263
0.386
0.953
0.707
Answer
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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°
0°, 180°
60°,240°
90°,270°
90°,180°
0°, 180°
60°,240°
90°,270°
Answer
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