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Control Systems

Control Systems
For a unity feedback control system open loop transfer function then acceleration error constant is

 0.
 50.
 infinity.
 20.

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Control Systems
Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to

 F(s+a)
 F(s)/(s+a)
 eas*F(s)
 e-as*F(s)

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Control Systems
Which of the following statements is/are true?

 Centroid may not be a part of root locus
 Centroid may be a part of root locus
 both 1 and 2
 nether 1 nor 2

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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

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

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Control Systems
Which of the following statement is/are true statements?

 The steady state analysis depends on type of the system
All of these
 Transient state analysis depends on order of the system
 Type of the system is obtained from open loop transfer function

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Control Systems
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is

 0.953
 0.263
 0.386
 0.707

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