Armature Cores and Windings Quiz
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Questions and Answers

What is the purpose of using thin laminated circular steel disks in the armature core?

  • To enhance mechanical strength
  • To reduce eddy current losses (correct)
  • To increase the weight of the armature
  • To improve electrical conductivity
  • What is the function of air ducts in the armature core?

  • To facilitate axial air flow for cooling (correct)
  • To insulate the armature winding
  • To reduce the weight of the armature
  • To increase magnetic flux
  • What is the purpose of insulating the armature conductors from each other and from the armature core?

  • To increase electrical resistance
  • To decrease the weight of the armature
  • To prevent short circuits (correct)
  • To enhance magnetic flux
  • Why are double layer lap or wave windings generally used in armature winding?

    <p>To achieve better commutation</p> Signup and view all the answers

    What is the function of the armature core in a DC machine?

    <p>To act as the rotor</p> Signup and view all the answers

    Why are armature conductors insulated from each other and from the armature core?

    <p>To prevent short circuits</p> Signup and view all the answers

    What is the purpose of using thin laminated circular steel disks in the armature core?

    <p>To reduce eddy current losses</p> Signup and view all the answers

    What type of winding is commonly used in armature winding?

    <p>Double layer lap or wave winding</p> Signup and view all the answers

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