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Control Systems

Control Systems
Name test signals used in time response analysis?

  All of B, C, D.
  Impulse.
  Unit ramp.
  Unit step.

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Control Systems
The transfer functions of two compensators are given below. Which one is correct? which one is correct?

  Both C1 and C2 are lead compensator.
  Both C1 and C2 are lag compensator.
  C1 is a lag compensator and C2 i
  C1 is a lead compensator and C2 i

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

 500 Hz
 1 kHz
 750 Hz
 350 Hz

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Control Systems
The phase of lead compensator of the system G ( s ) = ( s + a ) / ( s + b ) is at its maximum at:

  ab.
  a / b.
 √( a / b).
  √( ab ).

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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

 10
 4
 5
 6.5

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Control Systems
A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant?

 6 sec
 5 sec
 2 sec
 4 sec

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