Question 93Navigation General70% to pass
Two navigational hazards are located near to each other, but each is marked by an individual cardinal buoyage system. The buoys of one cardinal system may be identified from the other system by _______________.
AI Explanation
The correct answer is B) the difference in the periods of the light.
Cardinal buoys are used to mark the cardinal points (north, east, south, west) around a navigational hazard. The periods of the light flashes on the cardinal buoys are different for each cardinal direction to help mariners identify which way the hazard lies. Specifically, north cardinal buoys have quick flashing lights, east cardinal buoys have a long-short-long flash pattern, south cardinal buoys have a very quick double-flash, and west cardinal buoys have a regular flashing light. This difference in light characteristics allows mariners to distinguish one cardinal system from another, even when the hazards are located close together.
The other answer choices are incorrect because they do not accurately describe the distinguishing features between cardinal buoyage systems. The light colors, use of horizontal/vertical stripes, and even/odd numbering are not the primary means of differentiating between nearby cardinal buoy systems.
Related Questions
#91 If you were sailing in the North Pacific and were interested in the ice and iceberg limits, you could find this information in the _______________.#92 You are on course 090°T when you sight a flashing white light with a characteristic of VQ(9 #94 A vessel heading SSW is on a course of _______________.#95 You are proceeding under NCS (Naval Control of Shipping) when it becomes necessary to send a distress message. Which precedence would you assign this message? #96 How is the annual rate of change for magnetic variation shown on a pilot chart?