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Electric Propulsion, Fundamentals

CBT 36 questions

First 5 of 36 questions — with answers

The correct answer is marked. Unlock the rest to study the whole test, online or offline.

  1. Question 1

    A single phase AC generator produces a 50 Hz output. How long does it take for one complete cycle of the voltage?
    • 20 milliseconds.
    • 50 milliseconds.
    • 100 milliseconds.
    • 1 second.

  2. Question 2

    An electrical network consists of 3 loads with different power factors. Which of the following best describes how the overall network power factor can be calculated?
    • The three powers would need to be added together using vector addition.
    • The three powers would need to be added together using simple addition.
    • The apparent powers of all 3 loads can be added together and divided by the total power.
    • The arithmetic mean of the three power factors can be used.

  3. Question 3

    Here are the terminal connections on an electric induction motor. Which of the following best describes the arrangement?
    • 3 phase - Star connected.
    • 3 phase - Star connected with insulated neutral.
    • 3 phase - Delta connected.
    • 3 phase - Star connected with earthed neutral.

  4. Question 4

    Here are the terminal connections on an electrical machine. Which of the following best describes the arrangement?
    • 3 phase - Star connected with neutral.
    • 3 phase - Star connected.
    • 3 phase - Delta connected with neutral.
    • 3 phase - Delta connected with split winding.

  5. Question 5

    In relation to an electrical motor: which of the following best describes what "star point" is?
    • It is the point where the end of one winding is connected to the start of the next.
    • It is the point at which one of the ends of all 3 windings are shorted together.
    • It is a point provided for test equipment.
    • It is the point at which the motor is unable to turn.

Preview — 5 of 36 questions

You are seeing the first 5 questions with answers. Unlock the remaining 31 to study the whole test — online or offline.

About this CBT test

Electric Propulsion, Fundamentals is a CBT test with 36 questions and verified answers. Common topics include: electrical circuit, single phase, power factor, current, voltage, value, capacitor, capacitance.

You can practise the free questions online — one at a time, with the correct answer — or unlock the whole test and download it to study offline, without internet.

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