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Control Systems

Control Systems
For the polynomial , number of roots which lie in the right half of s-plane is

 1
 3
 4
 2

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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
 4
 1
 64

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Control Systems
The unit step error coefficient of a system with unity feedback is

 infinity.
 1.
 1/6.
 0.

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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
Lowest critical frequency is due to pole and it may be present at the origin or nearer to the origin, then the type of network is

 RC.
 RL.
 Any of the above.
 LC.

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Control Systems
Consider a network function H(s) = 2(s+3)/{(s+2)(s+4)}. What is the steady state response due to step input?

 1/2
 4/3
 1
 3/4

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