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Control Systems

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.
 2.
 0.

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Control Systems
Angle of asymptotes for complimentary root locus is

 (2q)*180/(P-Z)
 (2q+1)*180/P
 (2q+1)*180/(P-Z)
 (2q)*180/P

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Control Systems
The characteristic equation of a control system is given by What are the angles of asymptotes of the root loci for k ≥ 0?

 0°, 120°, 240°
 120°, 180°, 240°
 0°, 180°, 300°
 60°, 180°, 300°

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

 -2,-2
 -2±j4
 -2,-4
 -2,2

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Control Systems
Type and order of transfer function G (s) = K / {s(s + 2)}

 1, 1.
 0, 2.
 2, 1.
 1, 2.

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Control Systems
In signal flow graph output node is node having only------------

 both 1 and 2
None of these
 outgoing branches
 incoming branches

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