Direct Current Generator Or DC Generator Objective Questions and Answers

21.  DC generator generates

   A. AC voltage in the armature

   B. DC voltage in the armature

   C. AC superimposed over DC

   D. None of the above

22.  In DC generators the polarity of the Interpoles

   A. Is the same as that of the main pole ahead

   B. Is the same as that of the immediately preceding pole

   C. Is opposite to that of the main poll ahead

   D. Is the neutral as these poles do not play part in generating emf

23.  The EMF generated in a DC generator is directly proportional to

   A. Flux/pole

   B. Speed of armature

   C. Number of poles

   D. All of the above

24.  In a DC generator the critical resistance refers to the resistance of

   A. Brushes

   B. Field

   C. Armature

   D. Load

25.  A DC generator can be considered as

   A. Rectifier

   B. Prime mover

   C. Rotating amplifier

   D. Power pump

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