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CONTROL SYSTEMS

Control Systems
The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the final value?

 0
 3/5
 1
 1/4

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Control Systems
Find the Laplace transform for sinωt?

 ω/(s²+ω²)
 s/(s²+ω²)
 1/s
 1/s²

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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
 64
 16

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Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

 1
 0
 2
 3

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Control Systems
For type 1 system with parabolic input, the steady state error is

 indeterminate.
 zero.
 infinite.
 finite constant.

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