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Control Systems

Control Systems
For a lead compensator, the poles lie:

  on LHS.
  on RHS.
  on origin.
  on LHS before zero.

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Control Systems
The characteristic equation has the following roots for over damped stable system?

 -2,-4
 -2,-2
 -2,2
 -2±j4

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Control Systems
Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ?

 lead
 lead-lag
 lag
 lag-lead

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Control Systems
Which of the following is/are represents the lag compensator?

 (s+5)/(s+6)
 (s+2)/(s+1)
 (s+2)/(s+5)
 both 1 and 2

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Control Systems
Negative feedback in a closed loop control system

All of these
 reduces gain.
 improves disturbance rejection.
 reduces sensitivity to parameter variation.

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Control Systems
What is the open loop DC gain of a unity feedback control system having closed loop transfer function as

 4/13
 13/4
 9/4
 4/9

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