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Control Systems

Control Systems
For type 1 system with parabolic input, the steady state error is

 indeterminate.
 infinite.
 zero.
 finite constant.

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Control Systems
In frequency response analysis of second order system, the error at corner frequency is

 -10 logξ
 -20 log2ξ
 10 logξ
 20 log2ξ

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Control Systems
The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is

 6
 8
 4
 2

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Control Systems
When the input to a system was with drawn at t = 0, its output was found to decrease exponentially from 1000 units to 500 units in 1.386 sec. The time constant of the system is

 2.000.
 0.500.
 0.693.
 1.386.

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Control Systems
The transfer function of a system is given as below, if a = 0.1, then the steady state error to unity ramp input will be

 0.35.
 0.16.
 0.25.
 0.49.

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Control Systems
Find the stability for the following transfer function G(s) = 50/s(s+5) ?

 Marginally stable
 Unstable
 Critically stable
 Stable

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