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Control Systems

Control Systems
First Foster form of a LC network represents which element in the beginning?

 Both A and B.
 Resistor.
 Inductor.
 Capacitor.

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Control Systems
Number of roots in left hand half of s plane if characteristic equation is s3 - 4s2 + s + 6 = 0 ?

 0.
 1.
 2.
 3.

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Control Systems
The transfer function of a plant is T(s) = 5/(s+5)(s² + 5 + 1). The second order approximation of T(s) using dominant pole concept is

 1/(s² + 5 + 1)
 1/(s+1)(s+5)
 5/(s² + 5 + 1)
 5/(s+1)(s+5)

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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 parabolic response
 Laplace transform of the ramp response

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

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

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Control Systems
In a control system, an integrator is represented by

 1 / s2.
  1 / s.
  s.
  s2.

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