Direct Current Generator Or DC Generator Objective Questions and Answers


1.  The armature of a DC generator is laminated to


   A. Reduce the bulk

   B. Provide the bulk

   C. Insulate Thakur

   D. Reduce the eddy current loss


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D. Reduce the eddy current loss

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2.  The field coils of DC generator are usually made of


   A. Mica

   B. Copper

   C. Cast iron

   D. Carbon


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B. Copper

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3.  A DC generator may lose a residual magnetism due to


   A. Heating

   B. Vibrations

   C. Over excitation

   D.Any of the above


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A. Heating

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4.  In DC generators the residual magnetism is of the order of


   A. 2.5%

   B. 20%

   C. 15%

   D. 25%


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A. 2.5%

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5.  In DC generators the pole shoes are fastened to the pole core by


   A. Rivets

   B. Counter sunk screw

   C.Brazing

   D. Welding


✔ View Answer


B. Counter sunk screw

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