Question 100Navigation General

70% to pass

Which item in illustration D034NG below shows an occulting light?

Diagram for USCG Navigation General: Which item in illustration D034NG below shows an occulting light?
A A
B B
C C
D D
AI Explanation

The correct answer is B. The illustration D034NG shows different types of navigation lights, and the occulting light is represented by item B. An occulting light is a light that appears and disappears at regular intervals, with the duration of the light phase being longer than the duration of the eclipse phase. This type of light is commonly used to mark fixed objects, such as navigational aids or structures, to help mariners identify their location and avoid potential hazards. The other answer choices do not represent an occulting light. A represents a flashing light, C represents a fixed light, and D represents a quick-flashing light, which have different characteristics and applications in maritime navigation.

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