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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?

 0.707
 1
 1.5
 0.5

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Control Systems
The maximum phase lag occurs at the ------------------- of the two corner frequencies?

 geometric mean
None of these
 either 1 or 2
 arithmetic mean

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Control Systems
Angle condition for complimentary root locus or inverse root locus is

 ± (2q + 1) 360°
 ± (2q) 360°
 ± (2q + 1) 180°
 ± (2q) 180°

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Control Systems
The low frequency and high frequency asymptotes of Bode magnitude plot are respectively -60dB/decade and -40dB/decade. What is the type of the system?

 TYPE I
 TYPE 0
 TYPE II
 TYPE III

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Control Systems
A second order control system has a transfer function 16/(s² + 4s + 16). What is the time for the first overshoot?

 π/4√3 sec
 2π/√3 sec
 π/2√3 sec
 π/√3 sec

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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
 0.87
 0.087
 0.07

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