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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

 Zero.
 One.
 Infinite.
 None of them.

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Control Systems
A box which tells the effect of inputs on control sub system is known as

 Data Box.
 Decision box.
 State box.
 Logical box.

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Control Systems
A system is stable for (where GM = Gain Margin and PM = Phase Margin):

 GM -ve.
 GM and PM both +ve.
 GM and PM both -ve.
 PM - ve.

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Control Systems
Which one of the following is the steady state error for a step input applied to a unity feedback system with the open loop transfer function G(s) = 10/(s²+14s+50)?

 0
 infinite
 0.83
 1

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Control Systems
The error of a system to a ramp input is 1/5, if the type of the system is decreased by one, then the error of unit step input is

 0.2
 5
 6/5
 0.167

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Control Systems
Transient state analysis deals with -------------

 both 1 and 2
None of these
 magnitude of error
 nature of response

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