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DC Machine Construction Quiz
15 Questions
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DC Machine Construction Quiz

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@WellManneredLeopard

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Questions and Answers

What are the two basic parts of a DC machine?

  • Armature and commutator
  • Brushes and terminals
  • Field winding and yoke
  • Stator and rotor (correct)

    • What is the outer frame of a DC machine called?

  • Field winding
  • Commutator
  • Yoke (correct)
  • Armature

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

  • No, never
  • Yes, only with minor modifications
  • Depends on the size of the machine
  • Yes, theoretically (correct)

    • What term can be used to broadly describe both a DC generator and a DC motor?

    <p>DC machine</p> Signup and view all the answers

    How many poles does the simple 4-pole DC machine shown in the figure have?

    <p>4</p> Signup and view all the answers

    What are the two basic parts of a DC machine?

    <p>Stator and rotor</p> Signup and view all the answers

    What is the outer frame of a DC machine called?

    <p>Yoke</p> Signup and view all the answers

    What material is the yoke of a DC machine typically made of?

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

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

    <p>Yes, it can</p> Signup and view all the answers

    What term can be broadly used to refer to both a DC generator and a DC motor?

    <p>DC machine</p> Signup and view all the answers

    What was the first electromagnetic generator invented by Michael Faraday?

    <p>Faraday disk</p> Signup and view all the answers

    Which of the following is not a potential source of mechanical energy for generators?

    <p>Solar panels</p> Signup and view all the answers

    What do photovoltaic and fuel cell powered generators use to generate electrical output?

    <p>Solar power and hydrogen-based fuels</p> Signup and view all the answers

    In what year was the Faraday disk, the first electromagnetic generator, invented?

    <p>1831</p> Signup and view all the answers

    What is the reverse conversion of electrical energy into mechanical energy done by?

    <p>Electric motor</p> Signup and view all the answers

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