What is characteristic of an occulting light?
Official USCG Answer & Rule Citation
Correct Answer: Option D — 4 sec. flash, 2 sec. eclipse, 3 sec. flash, 2 sec. eclipse
An occulting light is characterized by a steady light that is interrupted by brief periods of darkness (eclipses). The total duration of the light is longer than the duration of the darkness. Option D represents a composite occulting light, where the light is interrupted by two distinct eclipses.
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