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Control Systems

Control Systems
The compensator would provide a maximum phase shift of

 45o.
 30o.
 20o.
 60o.

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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
Which one of the following is the response y(t) of a casual LTI system described by H(s) = (s+1)/(s²+2s+2) for a given input x(t) = e-t u(t)?

 e-t sint*u(t)
 e-t cost*u(t)
 e-t cott*u(t)
 e-t tant*u(t)

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Control Systems
Which of the following is/are the characteristics of negative feedback control system?

 Low sensitivity to parameter variations
All of these
 Reduction in gain at the expense of better stability
 Rejection of disturbance signals

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Control Systems
Time response for a second order system depends on value of ξ. If ξ = 1 then the system is called as

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

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Control Systems
None of the poles of a linear control system lie in the right half of s plane. For a bounded input, the output of this system

  could be unbounded.
  none of these.
  always bounded.
  tends to zero.

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