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Control Systems

Control Systems
what is the Laplace transform of a function δ(t-2)?

 2s
 e-2s
 0
 2

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Control Systems
A unity feed back system has forward transfer function The range of k for the system to be stable is

 0 < k < 39.
None of these
 0 < k < 3900.
 0 < k < 390.

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Control Systems
Weighting function is in terms of -----------------

 Laplace transform of the ramp response
 Laplace transform of the parabolic response
 Laplace transform of the step response
 Laplace transform of the impulse response

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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be

 Zero.
 ¾.
 1/11.
 10.

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Control Systems
A proportional plus derivative controller

 increases the stability of the system
 both 1 and 2
 improves the steady state accuracy
 has high sensitivity

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Control Systems
What is the open loop DC gain of a unity feedback control system having closed loop transfer function as

 4/13
 9/4
 4/9
 13/4

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