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Control Systems

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

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

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Control Systems
Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to

 infinite
 a value between -1 and +1
 zero
 finite constant

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Control Systems
Open loop transfer function,

 all pass filter.
 band stop filter.
None of these
 band reject filter.

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Control Systems
A controller transfer function is given by . What is its nature and parameter?

 lead compensator, α = 0.1
 lead compensator, α = 0.2
 lag compensator, β = 10
 lag compensator, β = 2

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Control Systems
Time taken by the response to reach and stay within a specified error is called

 Settling time.
 Peak time.
 Peak overshoot.
 Raise time.

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

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