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Control Systems
Negative feedback in a closed loop control system
reduces gain.
All of these
reduces sensitivity to parameter variation.
improves disturbance rejection.
reduces gain.
All of these
reduces sensitivity to parameter variation.
improves disturbance rejection.
Answer
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Control Systems
The transfer function of phase lead compensator is given by , where, T > 0, α < 0. What is the maximum phase shift provided by this compensator?
sin-1((1 - α)/(1 + α)
cos-1((1 - α)/(1 + α)
tan-1((1 - α)/(2√α)
both 1 and 3
sin-1((1 - α)/(1 + α)
cos-1((1 - α)/(1 + α)
tan-1((1 - α)/(2√α)
both 1 and 3
Answer
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Control Systems
The type of a control system is obtained from -------------- transfer function?
both open loop and closed loop
none of above.
closed loop
open loop
both open loop and closed loop
none of above.
closed loop
open loop
Answer
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Control Systems
The Laplace transformation of f(t) is F(S) given the final value of f(t) is
Zero.
One.
None of them.
Infinite.
Zero.
One.
None of them.
Infinite.
Answer
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Control Systems
The closed loop transfer function of a unity feedback control system is 9/(s² + 3s + 9), then the type of the system is
1
0
2
3
1
0
2
3
Answer
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Control Systems
Time taken for the response to rise from zero to 100 % for very first time is called
Peak time.
Rise time.
Delay time.
Settling time.
Peak time.
Rise time.
Delay time.
Settling time.
Answer
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