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Control Systems

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
 3/4
 4/3
 1

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

 10.
 0.
 50.
 infinity.

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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
 1
 4
 64

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Control Systems
The characteristic equation of a feedback control is 2s4 + s3 + 3s2 + 5s + 10 = 0. The no of roots in the right half of the s-plane is

 4.
 3.
 0.
 2.

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Control Systems
Consider the following statements for phase lead compensation:

 both 1 and 2
 nether 1 nor 2
 Phase lead compensation shifts the gain crossover frequency to the right
 The maximum phase lag occurs at the arithmetic mean of the two corner frequencies.

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Control Systems
The position and velocity error coefficient for the transfer function given below are respectively

 0 and infinity.
 50 and 0.
 0 and 0.
 50 and infinity.

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