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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
 1.5
 0.5
 0.707

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Control Systems
A transfer function has its zero in the right half of the s-plane. The function

 is minimum phase
 is non-minimum phase
 will give stable impulse response
 is positive real

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Control Systems
Negative feedback in a closed loop control system

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

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Control Systems
The optimum values of damping ratio is --------------

 0 to 2
 0.9 to 1.1
 0.3 to 0.7
 0.3 to 5

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Control Systems
A unity feed back system has forward transfer function The range of k for the system to be stable is

 0 < k < 390.
 0 < k < 3900.
None of these
 0 < k < 39.

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Control Systems
Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as

 undamped system.
 under damped system.
 over damped system.
 critically damped system.

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