Electrical Machines
In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will

 improve with rise in terminal voltage.
 improve with fall of terminal voltage.
 deteriorate with fall of terminal voltage.
 deteriorate with rise in terminal voltage.

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Electrical Machines
Two DC generators having equal open-circuit emfs but slight different load characteristics are operating in parallel, then

  the machine will share load equally.
  the machine with more drooping characteristic will supply less load.
 the machine with more drooping characteristic will supply more load.
None of these

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