Electrical Machines
A compound dc generator is delivering full load current at a terminal voltage of 230 V. Its series-field winding gets short circuited. If its terminal voltage 1. becomes more than 230 V, it is overcompounded generator 2. becomes more than 230 V, it is differentially compounded generator 3. becomes less than 230 V, it is overcompounded generator 4. becomes less than 230 V, it is differentially compounded generator 5. becomes less than 230 V, it is level compounded generator From these, the correct answer is

 1, 4, 5
 2, 3, 5
 1, 4
 2,3

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Electrical Machines
The coil spam

  may or may not be exactly equal to people pitch.
 can never be equal to pole pitch.
 must be exactly equal to people pitch.
 none of above.

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