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Home ‣ Electrical Engineering ‣ Three-Phase Systems in Power Applications Comments
  • Question

  • An alternator is an electromechanical ac generator.


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  • A. True
  • B. False

  • Correct Answer
  • False 

    • Three-Phase Systems in Power Applications problems

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    • 1. The term squirrel-cage applies to a type of three-phase ac generator.

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    • A. True
    • B. False
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    • 2. In a Y-connected generator, there is a 120° difference between each line voltage and the nearest phase voltage.

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    • A. True
    • B. False
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    • 3. Polyphase is characterized by two or more sinusoidal voltages, each having a different phase angle.

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    • A. True
    • B. False
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    • 4. A simple two-phase generator consists of two conductive loops separated by 90°, rotating in a magnetic field.

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    • A. True
    • B. False
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    • 5. A simple three-phase generator consists of three conductive loops separated by 120°.

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    • A. True
    • B. False
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    • 6. In a △-connected generator, there is a 120° difference between each line current and the nearest phase current.

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    • A. True
    • B. False
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    • 7. A balanced load is one in which all the impedances are equal.

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    • A. True
    • B. False
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    • 8. Energy equals power multiplied by time.

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    • A. True
    • B. False
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    • 9. The capacity of a battery is measured in milliamperes.

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    • A. True
    • B. False
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    • 10. Power rating is related to resistance value.

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    • A. True
    • B. False
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