Question 407Navigation General

The correct answer is B) flashing. A flashing light is defined as a light that has a light period shorter than its dark period. This is in contrast to an occulting light, which has a light period longer than its dark period, and a pulsating or alternating light, which have equal light and dark periods. The other answer choices are incorrect because: A) Occulting lights have a light period longer than the dark period. C) Pulsating lights have equal light and dark periods. D) Alternating lights have equal light and dark periods.