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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

 1
 16
 64
 4

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Control Systems
Find the Laplace transform for sinωt?

 1/s
 s/(s²+ω²)
 ω/(s²+ω²)
 1/s²

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Control Systems
Force balancing equation of a dash-pot element is (where, x = displacement)

 B *x
None of these
 B dx/dt
 B d2x/dt2

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Control Systems
A function of one or more variables which conveys information about the nature of physical phenomenon is called

 interference.
 signal.
 system.
 noise.

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Control Systems
None of the poles of a linear control system lie in the right half of s plane. For a bounded input, the output of this system

  could be unbounded.
  none of these.
  tends to zero.
  always bounded.

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Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

 10.
 2.
 5.
 1.

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