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Deck: Rules of the Road

Question 201 of 1,025

BOTH INTERNATIONAL & INLAND In illustration D023RR below item "D" represents the arc of visibility of which of the following lights?

USCG illustration D023RR for Deck Rules of the Road question 201 — Illustration D023RR

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Tip: press A-D to answer

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Mariner discussion

Comments from mariners who studied this question.

Di Diesel3 · Aug 23, 2017

What would be the correct answer?

Pe Perrorojo11 · Jan 12, 2018

which light would d be?

br brentbilger · Nov 8, 2018

It's not a masthead light because the arc is only 90 degrees

Sh Shakaree · Jan 10, 2019

Sidelights extend to 22.5 degrees abaft the beam