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Control Systems

Control Systems
Force balancing equation of a dash-pot element is (where, x = displacement)

 B *x
None of these
 B dx/dt
 B d2x/dt2

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Control Systems
The closed loop transfer function of a unity feedback control system is 9/(s² + 3s + 9), then the type of the system is

 3
 1
 0
 2

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Control Systems
The open loop transfer function for unity feedback system is given by 5(1+0.1s) / (s(1+5s)(1+20s)) Find the steady state error for a step input of magnitude 10 is equal to

 2.
 zero.
 infinite.
 5.

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Control Systems
A proportional plus integral controller

 has high sensitivity
 it increases rise time
 increases the stability of the system
 both 2 and 3

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Control Systems
For a lead compensator, the poles lie:

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

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Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 0.5
 0.707
 1
 1.5

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