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Control Systems

Control Systems
In the cauer-2 form of LC network---------is series element and --------is shunt element respectively?

 L and L
 C and L
 L and C
 C and C

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Control Systems
A second order control system has F(jω) = 100/(100 - ω² + 10√2 jω). Find the resonant peak?

 0.5
 0.707
 1
 1.5

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Control Systems
A function y (t) satisfies the following differential equation : Where, δ (t) is the delta function. Assuming zero initial condition and denoting the unit step function by u(t), y(t) can be formed as

 etu(t).
 e-tu(t).
 et.
 e-t.

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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 the gain k is increased to infinity, then damping ratio will tend to become

 unity
 zero
 0.707
 infinite

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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?

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

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Control Systems
Error at corner frequency ωcf of first order control system is -------

 ±2 db
 ±4 db
 ±3 db
 ±1 db

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