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Control Systems

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

 0
 1
 3
 2

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

 20.
 0.
 50.
 infinity.

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

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

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Control Systems
Which of the following is/are the advantages of a closed loop control system?

 both 1 and 2.
 nether 1 nor 2.
 The closed loop systems are less affected by noise.
 The closed loop systems are accurate.

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Control Systems
In signal flow graph output node is node having only------------

 both 1 and 2
None of these
 outgoing branches
 incoming branches

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Control Systems
The impulse response of a linear system is e-t, (t > 0). The corresponding transfer function is

 1/s
 s/(s+1)
 1/(s+1)
 1/s(s+1)

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