DC Machines and Transformers Quiz

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Questions and Answers

What type of motor is suitable for applications requiring high starting torque and heavy torque overloads?

  • Shunt motor
  • Separately excited motor
  • Compound motor (correct)
  • Series motor

What is the function of armature current in a series motor's flux?

  • Directly proportional
  • Inversely proportional (correct)
  • Exponential relationship
  • No relationship

In a series motor, what happens to the speed when the armature current increases?

  • The speed increases
  • The speed fluctuates
  • The speed remains constant
  • The speed decreases (correct)

Which type of compound motor has a drop in speed dependent on the strength of the series field?

<p>Differential type (A)</p> Signup and view all the answers

How does speed control vary with armature resistance in a dc motor?

<p>The speed decreases with an increase in armature resistance (D)</p> Signup and view all the answers

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