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Control Systems

Control Systems
Given a unity feedback system with G(s) = k/s(s+4), the value of k for damping ratio of 0.5 is

 16
 64
 1
 4

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

 infinity.
 10.
 0.
 50.

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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
 9/4
 4/9
 4/13

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Control Systems
The angle condition used for checking whether any point lies on root locus or not is...........

 ± (2q + 1) 360o.
 ± (2q) 180o.
 ± (2q + 1) 180o.
 ± (2q) 360o.

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Control Systems
The transfer function of the control system depends on

 initial conditions of input and output.
 nature of the input.
 nature of the output.
 the system parameters alone.

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Control Systems
A lead compensator used for a closed loop controller has the following transfer function For such a lead compensator

 a > kb.
 b < a.
 a < kb.
 a < b.

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