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Control Systems

Control Systems
The Laplace transformation of f(t) is F(S) given the final value of f(t) is

 Infinite.
 One.
 None of them.
 Zero.

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Control Systems
Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e-at) is equal to

 F(s)/(s+a)
 eas*F(s)
 F(s+a)
 e-as*F(s)

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Control Systems
Angle condition for complimentary root locus or inverse root locus is

 ± (2q + 1) 360°
 ± (2q) 360°
 ± (2q) 180°
 ± (2q + 1) 180°

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Control Systems
In signal flow graph output node is node having only------------

None of these
 incoming branches
 outgoing branches
 both 1 and 2

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

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

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Control Systems
The output of the system has an effect upon the input quantity, then the system is a

 either 1 or 2.
 open loop control system.
 closed loop control system.
None of these

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