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Control Systems

Control Systems
Find the bandwidth of the system, when rise time of the system is give as 1msec?

 500 Hz
 1 kHz
 350 Hz
 750 Hz

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Control Systems
If two blocks having gains A and B respectively are in series connection, find the resultant gain using block diagram reduction technique?

 A-B
 A+B
 A/B
 A*B

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Control Systems
A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is

 5
 6.5
 4
 10

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Control Systems
In a control system, an integrator is represented by

  s.
 1 / s2.
  s2.
  1 / s.

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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+1)
 1/(s+1)
 1/s
 s/(s+1)

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Control Systems
A controller transfer function is given by . What is its nature and parameter?

 lag compensator, β = 10
 lead compensator, α = 0.1
 lag compensator, β = 2
 lead compensator, α = 0.2

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