Question 147Electricity & Electronics - Assistant Engineer

70% to pass

As shown in the illustrated harmonic analysis diagram, which figure represents the fundamental (or first harmonic)? Illustration EL-0163

Diagram for USCG Electrical Assistant: As shown in the illustrated harmonic analysis diagram, which figure represents...
AA
BB
CC
DD
AI Explanation

The correct answer is B. The fundamental or first harmonic in the harmonic analysis diagram shown in Illustration EL-0163 is represented by figure B. This is because the fundamental harmonic corresponds to the lowest frequency or longest wavelength component of the periodic waveform. In the diagram, figure B depicts the fundamental or first harmonic, while the other figures (A, C, and D) represent higher-order harmonics with shorter wavelengths. The other options are incorrect because they do not depict the fundamental or first harmonic of the waveform.

Related Questions
Q69:Two AC generators are operating in parallel and both are equipped with automatic... Q401:As shown in the illustration of an electrically operated watertight door control... Q199:An accidental path of low resistance bypassing the intended path and allowing pa... Q261:Which of the listed motors will operate at the highest RPM, assuming that each o... Q203:Which of the following fixed temperature heat-actuated fire detectors can be reu...

Ready to test your knowledge?

Take a Electricity & Electronics - Assistant Engineer Practice Exam
Official Resources
46 CFR Electrical Engineering 46 CFR Machinery & Electrical USCG National Maritime Center
← Previous All Questions Next →

Pass Your Coast Guard Licensing Exams!

Study offline, track your progress, and simulate real exams with the Coast Guard Exams app

Download on App Store Get it on Google Play Download for Mac