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Control Systems

Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 1
 0.5
 0.707
 1.5

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Control Systems
The Laplace transform of a transportation lag of 5 seconds is

 e-5s.
 1/(s-5).
 e5s.
 1/(s+5).

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Control Systems
The transfer function of a system given by The system is

 an under damped.
 a critically damped.
 an over damped.
 unstable.

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Control Systems
For type 1 system with parabolic input, the steady state error is

 zero.
 indeterminate.
 finite constant.
 infinite.

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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

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Control Systems
Negative feedback in a closed loop control system

 reduces sensitivity to parameter variation.
All of these
 reduces gain.
 improves disturbance rejection.

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