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Control Systems

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
Advantages of open loop control system is/are

 simple and economical.
 reliable.
All of these
 accurate.

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Control Systems
The closed loop transfer function of a unity feedback control system is 9/(s² + 3s + 9), then the type of the system is

 1
 2
 0
 3

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Control Systems
In frequency response analysis of second order system, the error at corner frequency is

 -10 logξ
 -20 log2ξ
 20 log2ξ
 10 logξ

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

 infinity.
 50.
 10.
 0.

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Control Systems
Based on relation between the arm impedances the filters can be categorized into how many types?

  2.
 Not classified at all.
 3.
 4.

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