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Control Systems

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

 Remains unaffected
None of these
 2 times
 1/2 times

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Control Systems
Electrical analogous quantity for dash-pot in force-current analogy is

 resistance.
 conductance.
 capacitance.
 inductance.

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Control Systems
For a unity feedback control system open loop transfer function then position error constant is

 infinity.
 40.
 20.
 0.

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Control Systems
The characteristic equation has the following roots for over damped stable system?

 -2,-2
 -2,-4
 -2±j4
 -2,2

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Control Systems
The compensator would provide a maximum phase shift of

 60o.
 30o.
 45o.
 20o.

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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

 ¾.
 Zero.
 1/11.
 10.

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