Question 279Navigation General70% to pass
The light characteristic of composite group flashing (2 + 1
AI Explanation
The correct answer is D.
The light characteristic of a composite group flashing (2 + 1) is D. This means the light flashes two short flashes followed by one long flash, repeating in that pattern.
This light characteristic is defined in the International Association of Lighthouse Authorities (IALA) maritime buoyage system, which is the standard used for navigation lights and markers in the United States. The other options (A, B, C) do not match the (2 + 1) flashing pattern described in the question.
Related Questions
#277 Which buoy may be odd numbered? #278 The Light List indicates that a light has a nominal range of 10 miles and is 11 feet high. If the visibility is 5 miles and your height of eye is 20 feet, at what approximate distance will you sight the light? #280 A lateral system buoy displaying a quick light _______________.#281 A List of Lights entry (L Fl) is a single flashing light which shows a long flash of not less than _______________.#282 A buoy having red and green horizontal bands would have a light characteristic of _______________.