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

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Electrical Machines
Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW?

 generator 2 gets over load
 200 MW and 400MW respectively
 generator 1 gets over load
 230.7 MW and 369.23 MW respectively

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