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Control Systems

Control Systems
The compensator would provide a maximum phase shift of

 45o.
 20o.
 30o.
 60o.

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Control Systems
A second order control system has a transfer function 16/(s² + 4s + 16). What is the time for the first overshoot?

 π/2√3 sec
 π/4√3 sec
 π/√3 sec
 2π/√3 sec

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Control Systems
The angle condition used for checking whether any point lies on root locus or not is...........

 ± (2q) 360o.
 ± (2q + 1) 180o.
 ± (2q + 1) 360o.
 ± (2q) 180o.

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Control Systems
Sparking between the contacts can be reduced by inserting

 a resistor in the line.
  a capacitor in parallel with the contacts.
 a capacitor in series with the contacts.
 a reactor in the line.

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Control Systems
For type 1 system with parabolic input, the steady state error is

 infinite.
 indeterminate.
 finite constant.
 zero.

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Control Systems
A linear time invariant system has an impulse response e2t for t > 0 . If initial condition are 0 and input is e3t, the output for t > 0 is

  e2t - e3t.
  e2t + e3t.
  e3t - e2t.
  e5t.

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