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What is the arc of horizon coverage for a masthead light?

  1. 225 degrees

  2. 180 degrees

  3. 360 degrees

  4. 112.5 degrees

The correct answer is: 225 degrees

A masthead light is a white light that is placed at the highest point on a boat's mast. It is used to indicate the position and direction of a boat to other vessels at night. The arc of horizon coverage for a masthead light is important because it determines the maximum distance that the light can be seen from. In this case, the correct answer is 225 degrees, as this is the typical coverage for a masthead light. Option B (180 degrees) and option D (112.5 degrees) are too narrow and would not provide enough coverage. Option C (360 degrees) is incorrect because a masthead light is not meant to provide a full circle of visibility, as this would be unnecessary and could potentially confuse other vessels.