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Control Systems

Control Systems
A second order control system has a transfer function 16/(s² + 4s + 16). Find the settling time for 2% tolerance?

 4 sec
 5 sec
 10 sec
 2 sec

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Control Systems
Angle of asymptotes for complimentary root locus is

 (2q+1)*180/P
 (2q)*180/(P-Z)
 (2q+1)*180/(P-Z)
 (2q)*180/P

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Control Systems
When compared to a 1st order LPF, a 2nd order LPF has

 higher voltage gain.
 higher cut off frequency.
 lower voltage gain.
 faster drop in filter response.

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Control Systems
For a lead compensator, the poles lie:

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

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Control Systems
Which of the following transfer functions represent under damped second order systems?

 4/(s² + 2s + 4)
All of these
 1/(s² + s + 1)
 2/(s² + 2s + 2)

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Control Systems
The characteristic equation of a feedback control is 2s4 + s3 + 3s2 + 5s + 10 = 0. The no of roots in the right half of the s-plane is

 2.
 4.
 3.
 0.

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