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Control Systems

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

 finite constant.
 zero.
 indeterminate.
 infinite.

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Control Systems
The second order system defined by 25/(s2 + 5s + 25) is given a step input. The time taken for the output to settle with in 2 % of input is

 2 sec.
 1.2 sec.
 1.6 sec.
 0.4 sec.

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Control Systems
When the system gain is doubled the gain margin becomes?

None of these
 Remains unaffected
 1/2 times
 2 times

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 4
 1
 0.5
 2

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Control Systems
Differentiation of parabolic response is a -------------- response?

 ramp
 parabolic
 step
 impulse

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Control Systems
A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is

 6.5
 5
 4
 10

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