Control Systems
A control system has open loop transfer function . Break away point is lies between

 0 and -4.
 0 and 4.
 any of the above.
 -4 and -6.

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Control Systems
In the integral control of the single area system frequency error is reduced to zero. Then

 integrator o/p increases but speed changer position comes down.
 integrator o/p decreases but speed changer position moves up.
 integrator o/p decreases and speed changer position comes down.
  integrator output and speed changer position attain a constant value.

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