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Control Systems

Control Systems
The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

 2
 3
 1
 0

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Control Systems
When compared to a 1st order LPF, a 2nd order LPF has

 faster drop in filter response.
 lower voltage gain.
 higher cut off frequency.
 higher voltage gain.

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Control Systems
In which of the following controller band width is increased?

 nether 1 nor 2
 both 1 and 2
 proportional plus integral controller
 proportional plus derivative controller

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Control Systems
When the polynomial is Routh Hurwitz,

 the roots of function have real parts which are to be zero/negative.
 the function is not real.
 none of these.
 all zeroes lie in the right half of the s-plane.

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Control Systems
The step response of the system described by the differential equation will be

 e-3t u(t).
 non of above.
 e6t.
 (1/6)*(1-e-6t).

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

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