Winding Of Direct Current Machine Objective Questions and Answers

31.  In a DC machines the armature winding are placed on the rotor because of the necessity for

   A. Electromechanical energy conversion

   B. Generation of voltage

   C. Commutation

   D. Development of torque

32.  Wave winding is composed of

   A. Any odd number of conductors

   B. Any even number of conductors

   C. That even number which is exact multiple of poles + or - 2

   D. That even number which is exactly multiple of poles

33.  Wave winding is employed in a DC machine of

   A. High current and low-voltage rating

   B. Low current and high voltage rating

   C. Hi current and a high-voltage rating

   D. Low current and a low voltage rating

34.  For a four pole machine wave winding is impossible with...........armature conductors

   A. 30

   B. 32

   C. 44

   D. 48

35.  If two eight pole DC machines of identical armatures are wound, one with a lap winding and the other with wave winding, then

   A. Wave wound machine will have more rated current and more voltage

   B. Lap wound machine will have more rated voltage and more current

   C. Lap wound machine will have more rated voltage and less current

   D. Wave wound machine will have more rated voltage and less current

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