ELECTRICAL ENGINEERING FINAL EXAM QUESTIONS WITH CORRECT ANSWERS

ELECTRICAL ENGINEERING FINAL EXAM QUESTIONS WITH CORRECT ANSWERS


1. Which of the following is the most important advantage of AC power over DC power?


A. Easy to change the values of I and E

B. Easy to Generate

C. Saves weight

D. None of the Above: Easy to change the values of I and E

2. is created by the AC generator.


A. rectifier

B. sine wave

C. peak-to-peak RMS

D. direct current: Sine Wave

3. One half of a sine wave is called a .


A. RMS wave

B. Period

C. Alternation

D. Cycle: Alternation


4. The measured value from the maximum

positive to the maximum negative values of voltage or current is called values.



,A. RMS

B. Peak-to-Peak

C. Period

D. Alternation

E. Cycle: Peak-to-Peak

5. AC Voltmeters measure in values.


A. RMS

B. Peak-to-Peak

C. Average

D. Alternation Squared: RMS


6. is the angular relationship between the peak values of I and E.


A. Phase

B. Peak-to-Peak

C. Average Cos. angle

D. Alternation Squared Phase: Phase


7. RMS values = of the peak value.


A. Right Most angle Squared




, B. .707

C. Average Cos. angle

D. .632: .707

8. If a circuit has a peak voltage of 310.2 vac, what is the RMS voltage?


A. 219 watts

B. 189 watts

C. 310 volts

D. 195 volts: 219 watts (310x.707=219)

9. If an AC generator has 8 poles and the rotor turns at 1,800 RPM, what is the frequency of AC produced in

Hz.?

A. 219

B. 120

C. 310

D. 189: 120 (8/2x1800/60=120)

10. The useful Power

generated in an AC circuit is called Power.

A. True

B. Apparent