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Control Systems

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
Which system is also known as automatic control system?

 Closed loop control system
 Nether 1 nor 2
 Either 1 or 2
 Open loop control system

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Control Systems
The transfer function of a system is 10/(1 + S) when operated as a unity feedback system, the steady state error to a unit step input will be

 Zero.
 10.
 1/11.
 ¾.

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Control Systems
If two blocks having gains A and B respectively are in series connection, find the resultant gain using block diagram reduction technique?

 A+B
 A/B
 A-B
 A*B

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Control Systems
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system?

 4
 2
 0.5
 1

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Control Systems
The poles of the second order system are at -3 ± j4. The damping ratio of the system is

 3/4
 3/5
 4/5
 3/7

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