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Control Systems

Control Systems
Which of the following is/are represents the lead compensator?

 (s+5)/(s+6)
 both 2 and 3
 (s+2)/(s+5)
 (s+2)/(s+1)

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Control Systems
The unit step error coefficient of a system with unity feedback is

 infinity.
 1.
 0.
 1/6.

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

 -10 logξ
 10 logξ
 20 log2ξ
 -20 log2ξ

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Control Systems
The closed loop transfer function of a system is 25/(s² + 25). The settling time of the system is

 25 sec
 5 sec
 1 sec
 ∞ sec

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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
 unity
 0.707
 infinite

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Control Systems
The amplitude spectrum of a Gaussian pulse is

 Gaussian.
 Impulse function.
 A sine function.
 Uniform.

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