Fundamentals of Electrical Engineering Quiz
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Questions and Answers

What is the main function of the yoke in a DC machine?

  • Facilitate cooling of the machine
  • Generate electrical power
  • Control the speed of the machine
  • Provide mechanical strength and confine magnetic flux (correct)

    • What is the purpose of pole shoes in a DC machine?

  • To reduce magnetic interference
  • To concentrate the magnetic flux (correct)
  • To increase the speed of the machine
  • To regulate the electrical output

    • Can a DC generator be used as a DC motor without any changes?

  • It can only be used as a motor with minor adjustments
  • Yes, it can be used as a motor without any constructional changes (correct)
  • No, it requires significant constructional changes
  • It can be used as a motor, but with reduced efficiency

    • What are the components of a DC machine's rotating part?

    <p>Rotor and armature system</p> Signup and view all the answers

    In a DC machine, what is the material typically used for the yoke?

    <p>Cast iron or steel</p> Signup and view all the answers

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