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Control Systems

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

 1/(s+5).
 e5s.
 1/(s-5).
 e-5s.

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

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

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Control Systems
Weighting function is in terms of -----------------

 Laplace transform of the step response
 Laplace transform of the impulse response
 Laplace transform of the ramp response
 Laplace transform of the parabolic response

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Control Systems
The amplitude spectrum of a Gaussian pulse is

 Gaussian.
 Uniform.
 Impulse function.
 A sine function.

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Control Systems
Time response for a second order system depends on the value of τ. If τ= 0 then the system is called as

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

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Control Systems
The system having characteristic equation is used to be an oscillator. What is the value of k?

 3
 1
 2
 4

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