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Control Systems

Control Systems
The poles of the second order system are at -3 ± j4. The damping ratio of the system is

 3/4
 4/5
 3/7
 3/5

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Control Systems
Error constants of a system are a measure of

 transient state response.
 steady state response as well as transient state response.
 relative stability.
 steady state response.

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Control Systems
The transfer function of phase lead compensator is given by , where, T > 0, α < 0. What is the maximum phase shift provided by this compensator?

 tan-1((1 - α)/(2√α)
 cos-1((1 - α)/(1 + α)
 sin-1((1 - α)/(1 + α)
 both 1 and 3

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Control Systems
First Foster form of a LC network represents which element in the beginning?

 Inductor.
 Both A and B.
 Resistor.
 Capacitor.

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

 incoming branches
 both 1 and 2
None of these
 outgoing branches

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Control Systems
Adding a pole to a system transfer function in terms of compensator represents a --------------- compensator ?

 lead-lag
 lead
 lag-lead
 lag

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