BOTH INTERNATIONAL & INLAND In illustration...

Question 1 / 2707066636eeb28f7522a1c51babf

Question 1 of 2707066636eeb28f7522a1c51babf

BOTH INTERNATIONAL & INLAND In illustration D023RR below which item shows the arc of visibility of a green sidelight?

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Question 1 of 27070

BOTH INTERNATIONAL & INLAND In illustration D023RR below which item shows the arc of visibility of a green sidelight?

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🔍 Key Concepts

• Navigation Rules Rule 21(b) – definition and arc of visibility of sidelights • A green sidelight is shown on the starboard side from right ahead to 22.5° abaft the beam (total 112.5° arc) • In plan-view diagrams, the bow is at the top, stern at the bottom, starboard to the right, port to the left

💭 Think About

• First, picture yourself standing above the vessel looking down: which way is the bow, and which side is starboard? • Which sector shows light only from straight ahead, along the starboard side, and just a little bit past the beam toward the stern – but not across the bow to port and not directly astern? • Compare each option and mentally place it on the starboard side of the ship: which one best matches the ‘ahead to just abaft the beam’ requirement?

✅ Before You Answer

• Confirm the sidelight arc is about 112.5° (a bit more than a right angle) on one side only • Make sure the chosen sector starts at dead ahead and extends past the starboard beam, but does not show into the stern sector • Eliminate any option that would make the light visible on the port side or directly astern of the vessel

Question 1 of 27070

BOTH INTERNATIONAL & INLAND In illustration D023RR below which item shows the arc of visibility of a green sidelight?

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