In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n) __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — transducer
In USCG General Navigation principles (Bowditch, Light Lists, and Coast Pilots), regarding 'In modern fathometers the sonic or ultrasonic sound waves are produced electrically by means of a(n)', the verified fact is: 'transducer'.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.