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Control Systems

Control Systems
Angle of asymptotes for complimentary root locus is

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

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Control Systems
Consider a point S = -3 + j4 in the s-plane. Then for a system with the open loop transfer function ?

 S is on root locus
 either 1 or 2
 S is not on root locus
None of these

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

 -2±j4
 -2,-4
 -2,2
 -2,-2

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

 infinity.
 20.
 0.
 40.

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Control Systems
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

 3
 5
 2
 1

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Control Systems
A system has poles at 0.01 Hz, 1 Hz and 80 Hz; zeros at 5 Hz, 100 Hz and 200 Hz. The approximate phase of the system response at 20 Hz is

 -90°
 -180°
 180°
 90°

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