Electrical Machines
Fufuraldehyde analysis is done to determine the

 condition of cork gaskets used in transformer.
  condition of paper insulation in transformer.
 condition of oil in transformer.
 condition of lamination on CRGO steel sheet.

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Electrical Machines
The coil spam

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

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Electrical Machines
No load primary current in a transformer

 leads the applied voltage somewhat less than 90Ã&
 lags behind applied voltage by exactly 90Â&am
 lags behind applied voltage somewhat less than 90Ã
 leads the applied voltage by exactly 90Â&

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