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Control Systems

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
 1
 2

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Control Systems
The unit step response of the system is 1 - e-t(1+t). Which is the system?

 unstable
 oscillatory
 critically stable
 stable

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Control Systems
The transfer function of the control system depends on

 initial conditions of input and output.
 nature of the output.
 the system parameters alone.
 nature of the input.

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Control Systems
Angle of asymptotes for complimentary root locus is

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

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Control Systems
The characteristic equation for closed loop system is given as . The value of k for which the system becomes just stable is

 2
 4
 6
 8

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Control Systems
Which of the following represents the value of resonant frequency (ωr)?

 (ωn) √(1-ζ²)
 (ωn) √(1-2ζ²)
 (ωn) √(1-ζ²/2)
 2*(ωn) √(1-ζ²)

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