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Control Systems

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

 50.
 20.
 infinity.
 0.

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Control Systems
Which of the following is the correct expression for the transfer function of an electrical RC phase lag compensating network?

 1/(1+RCS)
 C/(1+RCS)
 RCS/(1+RCS)
 RC/(1+RCS)

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Control Systems
A second order control system has a transfer function 16/(s² + 4s + 16). Find the settling time for 2% tolerance?

 10 sec
 5 sec
 2 sec
 4 sec

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Control Systems
Slope of asymptote in Bode plot of 2nd order system is _____________________ per octave.

 12 dB
 18 dB
 3 dB
 6 dB

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Control Systems
Open loop transfer function,

 band stop filter.
 all pass filter.
None of these
 band reject filter.

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Control Systems
Find the relation of damped natural frequency (ωd)

 (ωn) √(1-2ζ²)
 (ωn) √(1-4ζ²)
 (ωn) √(1-1/ζ²)
 (ωn) √(1-ζ²)

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