The sternlight shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?

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Multiple Choice

The sternlight shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?

Explanation:
The sternlight is meant to be visible over a rearward arc of 135 degrees, centered on the stern. That means it should be seen from dead astern out to 67.5 degrees to each side. In practical terms, the light is visible from 67.5 degrees to the port side and 67.5 degrees to the starboard side behind the vessel, giving a total rear arc of 135 degrees. The other options would produce too small or too large a rearward arc and don’t align with the standard requirement.

The sternlight is meant to be visible over a rearward arc of 135 degrees, centered on the stern. That means it should be seen from dead astern out to 67.5 degrees to each side. In practical terms, the light is visible from 67.5 degrees to the port side and 67.5 degrees to the starboard side behind the vessel, giving a total rear arc of 135 degrees. The other options would produce too small or too large a rearward arc and don’t align with the standard requirement.

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