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Control Systems

Control Systems
In force-current analogy, electrical analogous quantity for displacement (x) is

 voltage.
 inductance.
 capacitance.
 flux.

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Control Systems
The impulse response of a system is c(t) = -te-t + 2 e-t (t>0). Its closed loop transfer function is

 (2s+2)/(s+1)²
 (2s+1)/(s+1)²
 (2s+1)/s²
 (2s+2)/s²

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Control Systems
The value of 'a' in to give phase margin = 45o will be

 1.18.
 0.707.
 0.9.
 1.414.

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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

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

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Control Systems
Find the order of a system given by

 4.
 3.
 5.
 2.

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Control Systems
The DC gain of a system represented by the transfer function 12 / {( s + 2 )( s + 3 )} is

 1.
 5.
 2.
 10.

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