
EEUTI30 FQ1A
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best explains the fundamental advantage of AC systems over DC systems for power transmission?
AC systems allow easy voltage transformation using transformers.
AC systems maintain a constant current
AC systems require less maintenance.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the sinusoidal voltage expression v(t) = Xm sin(ωt + φ), what does φ represent?
The amplitude of the waveform.
The phase angle.
The angular frequency.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which measurement of an AC waveform provides the effective value that indicates its DC equivalent for power delivery?
Peak value
Average value
RMS value
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When averaging a full-cycle sinusoidal waveform algebraically (taking into account the sign), its average value is:
0
Equal to the peak value
Half of the peak value
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The term "peak-to-peak value" refers to:
The maximum value of the waveform
The full range from the maximum positive to the maximum negative value
The average of the absolute waveform values
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which historical figure is most closely associated with the development of AC power systems?
Thomas Edison
Nikola Tesla
Michael Faraday
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
High-voltage AC transmission is preferred because stepping up the voltage reduces the current. Lower current then decreases what type of losses?
Resistive (I²R) losses in transmission lines
Energy conversion losses
Dielectric losses
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