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Control Systems

Control Systems
Given a unity feedback system with G(s) = k/s(s+4), the value of k for damping ratio of 0.5 is

 4
 1
 16
 64

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Control Systems
For a unity feedback control system open loop transfer function then acceleration error constant is

 50.
 0.
 20.
 infinity.

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Control Systems
Time taken for the response to rise from zero to 100 % for very first time is called

 Peak time.
 Delay time.
 Rise time.
 Settling time.

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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.
  e5t.
  e2t + e3t.
  e3t - e2t.

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Control Systems
Lowest critical frequency is due to pole and it may be present at the origin or nearer to the origin, then the type of network is

 RL.
 Any of the above.
 RC.
 LC.

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Control Systems
Which of the following statements is/are true?

 Centroid may be a part of root locus
 both 1 and 2
 nether 1 nor 2
 Centroid may not be a part of root locus

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