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Control Systems

Control Systems
Open loop transfer function,

 band reject filter.
 band stop filter.
None of these
 all pass filter.

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Control Systems
The open loop transfer function of a unity feedback control system is G(s) = 1/((s(s+0.1s)(s+1)). The value of damping factor for which the resonant peek is equal to 1.4 is

 0.263
 0.707
 0.386
 0.953

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Control Systems
Lead network is used to

 improve steady state response.
 both A and C.
 increase bandwidth.
 improve transient response.

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Control Systems
Which of the following is/are the advantages of a closed loop control system?

 The closed loop systems are accurate.
 nether 1 nor 2.
 both 1 and 2.
 The closed loop systems are less affected by noise.

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

 e6t.
 1/3.
 e-3t u(t).
 (1/3) × (1-e-3t).

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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

 13/4
 4/9
 4/13
 9/4

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