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Control Systems

Control Systems
The transfer function for tachometer E(S)/θ(S) is

 KS2
 K/S
 KS
 K

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Control Systems
Electrical analogous element for damper element (force-voltage analogy) in mechanical translation system is

 any of the above
 capacitor
 inductor
 resistor

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Control Systems
When compared to a 1st order LPF, a 2nd order LPF has

 higher voltage gain.
 higher cut off frequency.
 lower voltage gain.
 faster drop in filter response.

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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.
 0.
 3.
 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

 64
 4
 1
 16

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Control Systems
Which of the following statements is/are true?

 nether 1 nor 2
 Centroid may be a part of root locus
 Centroid may not be a part of root locus
 both 1 and 2

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