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Control Systems

Control Systems
Settling time for 5% tolerance band is -------------

 3T.
 2T.
 4T.
 5T.

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

 Unstable
 Marginally stable
 Stable
 Critically stable

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Control Systems
What will be the type of the system, if the steady state performance of control system yields a non zero finite value of the velocity error constant?

 type - 0
 type - 1
 type - 2
 type - 3

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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

 5
 6.5
 4
 10

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Control Systems
A proportional plus integral controller

 has high sensitivity
 both 2 and 3
 increases the stability of the system
 it increases rise time

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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?

 0.5
 2
 1
 4

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