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Control Systems

Control Systems
The phase margin of a system having the loop transfer function G(s)H(s) = 2√3/s(s+1) is

 80°
 45°
 60°
 30°

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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?

 20°
 30°
 60°
 3°

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Control Systems
Find the bandwidth of the system, when rise time of the system is give as 1msec?

 1 kHz
 350 Hz
 500 Hz
 750 Hz

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Control Systems
A ramp input applied to an unity feedback system results in 5% steady state error. The type number of the system is...........?

 5
 2
 1
 3

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Control Systems
The angle condition used for checking whether any point lies on root locus or not is...........

 ± (2q + 1) 180o.
 ± (2q + 1) 360o.
 ± (2q) 360o.
 ± (2q) 180o.

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Control Systems
The steady state error due to ramp input for a type two system is equal to

 zero.
 non zero number.
 constant.
 infinite.

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