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Control Systems

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

 finite constant.
 infinite.
 indeterminate.
 zero.

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Control Systems
A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

 -2
 2
 -1
 1

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Control Systems
A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = te-t (t ≥ 0). The transfer function of the system is

 1/s(s+1)2
 s/(s+1)
 (s+1)2/s
 s/(s+1)2

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Control Systems
When compared to a 1st order LPF, a 2nd order LPF has

 higher voltage gain.
 higher cut off frequency.
 faster drop in filter response.
 lower voltage gain.

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Control Systems
Poles and zeros are arranged alternatively on negative real axis, then type of network is/are

 LC network.
 RL network.
 RC network.
 Both 2 and 3.

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Control Systems
The graph of an electrical network has N nodes and B branches. The number of links, L with respect to the choice of a tree, is given by

 B + N.
 N - 2B - 1.
  B - N + 1.
 N - B + 1.

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