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Control Systems

Control Systems
If a body has identical properties all over, it is known as

 elastic.
 none of them.
 homogeneous.
 isotropic.

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Control Systems
The transfer function for tachometer E(S)/θ(S) is

 K/S
 K
 KS
 KS2

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

 incoming branches.
 both 1 and 2.
 outgoing branches.
None of these

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Control Systems
The transfer function of a plant is T(s) = 5/(s+5)(s² + 5 + 1). The second order approximation of T(s) using dominant pole concept is

 1/(s+1)(s+5)
 5/(s² + 5 + 1)
 1/(s² + 5 + 1)
 5/(s+1)(s+5)

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Control Systems
The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become

 zero
 infinite
 unity
 0.707

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Control Systems
Name test signals used in time response analysis?

  Unit ramp.
  Impulse.
  All of B, C, D.
  Unit step.

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