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Control Systems
For a second order under damped system subjected to unit step input the time response has first peak value to be 4 times the second over shoot. Determine the damping ratio ξ ?
0.707
0.07
0.087
0.87
0.707
0.07
0.087
0.87
Answer
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Related Question
Control Systems
Find the corner frequency for the following transfer function? G(s) = 1/(s+2)
2 rad/s
1/2 rad/s
1/4 rad/s
4 rad/s
2 rad/s
1/2 rad/s
1/4 rad/s
4 rad/s
Answer
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Control Systems
A second order control system is defined by the following equation: 4 d²c(t)/dt² + 8 dc(t)/dt + 16 c(t) = 16 u(t) The damping ratio and natural frequency for this system are respectively
0.50 and 4 rad/s
0.25 and 2 rad/s
0.50 and 2 rad/s
0.25 and 4 rad/s
0.50 and 4 rad/s
0.25 and 2 rad/s
0.50 and 2 rad/s
0.25 and 4 rad/s
Answer
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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 final value?
0
1
1/4
3/5
0
1
1/4
3/5
Answer
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Control Systems
Which of the following are the disadvantages of a closed loop control system?
Oscillatory response.
Complex and costly.
All of these
Reduces the overall gain.
Oscillatory response.
Complex and costly.
All of these
Reduces the overall gain.
Answer
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Control Systems
Type and order of transfer function G (s) = K / {s(s + 2)}
1, 2.
0, 2.
2, 1.
1, 1.
1, 2.
0, 2.
2, 1.
1, 1.
Answer
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