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Control Systems

Control Systems
The value of gain margin of the system having G ( s )H ( s ) = 8 / ( s + 2 )3 is

 4.
 6.
  8.
 2.

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Control Systems
Lead network is used to

 increase bandwidth.
 both A and C.
 improve transient response.
 improve steady state response.

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Control Systems
The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) = 0. Find the angle between the asymptotes?

 180°
 120°
 360°
 60°

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Control Systems
In force-current analogy, electrical analogous quantity for displacement (x) is

 inductance.
 voltage.
 capacitance.
 flux.

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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?

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

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Control Systems
The impulse response of a linear system is e-t, (t > 0). The corresponding transfer function is

 1/s
 s/(s+1)
 1/s(s+1)
 1/(s+1)

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