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Control Systems

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

 6 dB
 18 dB
 12 dB
 3 dB

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Control Systems
Given the transfer function of a system. Which of the following characteristics does it have?

 any of the above
 Critical damped
 Over damped
 Under damped

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Control Systems
The closed loop transfer function of a system is 25/(s² + 25). The settling time of the system is

 ∞ sec
 25 sec
 1 sec
 5 sec

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

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Control Systems
The unit step error coefficient of a system with unity feedback is

 infinity.
 1.
 0.
 1/6.

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Control Systems
Poles and zeros are arranged alternatively on negative real axis, then type of network is/are

 LC network.
 RL network.
 RC network.
 Both 2 and 3.

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