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Control Systems

Control Systems
what is the Laplace transform of a function δ(t-2)?

 e-2s
 0
 2s
 2

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Control Systems
The transfer function of a system is given as below, if a = 0.1, then the steady state error to unity ramp input will be

 0.25.
 0.16.
 0.35.
 0.49.

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Control Systems
A second order control system has a transfer function 16/(s² + 4s + 16). What is the time for the first overshoot?

 π/2√3 sec
 π/√3 sec
 2π/√3 sec
 π/4√3 sec

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Control Systems
A second order under damped system has damping ratio of 0.3. Find the phase margin of the system?

 30°
 3°
 20°
 60°

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Control Systems
Angle of asymptotes for complimentary root locus is

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

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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 ?

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

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