Electrical Machines
In case of DC shunt motor if load is reduced

 The speed will increase in proportion to reduction in load.
  The speed will remains almost constant.
 DC Shunt Motor
 The speed will increase abruptly.

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Electrical Machines
What is/are the necessary conditions for voltage build up in self excited generator?

 Field winding resistance should be less than critical resistance.
 Poles should contain residual flux.
All of these
 Field winding should be properly connected to armature winding.

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