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Control Systems

Control Systems
A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

 1
 -1
 2
 -2

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Control Systems
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

 2
 5
 1
 3

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Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

 10.
 2.
 1.
 5.

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Control Systems
A system is stable for (where GM = Gain Margin and PM = Phase Margin):

 GM and PM both -ve.
 GM -ve.
 PM - ve.
 GM and PM both +ve.

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Control Systems
Name test signals used in time response analysis?

  Impulse.
  All of B, C, D.
  Unit ramp.
  Unit step.

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Control Systems
Find the relation of damped natural frequency (ωd)

 (ωn) √(1-2ζ²)
 (ωn) √(1-4ζ²)
 (ωn) √(1-1/ζ²)
 (ωn) √(1-ζ²)

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