
EEUTI130 FQ1 B-KEY Quiz
Authored by Hiro FD
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is AC power more suitable than DC for large-scale transmission across long distances?
AC systems operate at a lower voltage than DC, reducing transmission losses.
AC systems can efficiently step up and step down voltage using transformers.
AC systems require fewer protective components compared to DC systems.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the sinusoidal voltage expression v(t) = Vim cos(ωt + θ), what does θ indicate?
The maximum peak value of the waveform
The rate at which the waveform oscillates per second
The phase shift of the waveform relative to a reference point
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which measurement of an AC waveform represents the equivalent heating effect of a DC source?
Peak voltage, indicating the highest instantaneous value
RMS voltage, providing the effective power-carrying capability
Average voltage, calculated over one complete cycle
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Over a complete cycle, what is the algebraic average of a pure sinusoidal AC waveform?
Equal to the peak value
Half of the peak value
Zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the peak-to-peak value of an AC waveform represent?
The highest absolute voltage or current in the cycle
The total span between the maximum positive and maximum negative points
The average magnitude of the waveform over time
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which inventor is best known for advocating direct current (DC) systems and opposing AC power distribution in the late 19th century?
Thomas Edison
Nikola Tesla
James Clerk Maxwell
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of a transformer in AC power systems?
To regulate the frequency of an AC signal
To adjust voltage levels efficiently for transmission and distribution
To convert AC into DC for household use
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