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Control Systems

Control Systems
The open loop transfer function of non unity negative feedback system is , then the number of root locus branches equal to

 3.
 0.
 1.
 2.

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Control Systems
A negative feedback closed loop control system is supplied to an input of 5 volt. The system has a forward gain of 1 and a feedback gain of 1. What is the output voltage?

 1.5 Volt.
  1.0 Volt.
 2.0 Volt.
  2.5 Volt.

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Control Systems
For the polynomial , find the number of roots which lie on the right half of s-plane?

 2
 0
 4
 1

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Control Systems
The unit impulse response of second order system is 1/6 * e-0.8t sin(0.6t). THen the natural frequency is

 2 rad/s
 1 rad/s
 0.8 rad/s
 0.6 rad/s

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Control Systems
If the bandwidth of the system is very large, the system response is

 faster
 independent of bandwidth
None of these
 slower

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Control Systems
Lead network is used to

 both A and C.
 improve transient response.
 improve steady state response.
 increase bandwidth.

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