BOTH INTERNATIONAL & INLAND In illustration...

Question 1 / 2707066636eeb28f7522a1c51babc

Question 1 of 2707066636eeb28f7522a1c51babc

BOTH INTERNATIONAL & INLAND In illustration D023RR below item "C" shows the arc of visibility of which of the following?

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Question 1 of 27070

BOTH INTERNATIONAL & INLAND In illustration D023RR below item "C" shows the arc of visibility of which of the following?

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Rule 21 of the Navigation Rules – definitions and arcs of visibility for sidelights and towing/yellow lights • A sidelight shows from directly ahead to 22.5° abaft the beam on its own side (total 112.5°) • On these diagrams, assume the top of the box is the bow (ahead) and the bottom is astern

💭 Think About

• Look at item C and decide from which directions another vessel could see that light – mostly from ahead, from astern, or only near the beam? • Compare the shape in C with what you would expect for a sidelight: does it cover more area forward of the beam or aft of the beam? • Ask yourself whether the Navigation Rules give a standard arc diagram for a "yellow flashing light" the same way they do for sidelights and stern/towing lights.

✅ Before You Answer

• Verify in Rule 21 that red and green sidelights have exactly the same arc; only their sides (port vs starboard) differ. • Confirm which part of the ship (ahead, abeam, astern) item C primarily covers, given that the top of the square represents dead ahead. • Before choosing, make sure the option you’re considering matches both the color/type of light and the correct arc of visibility from the Rules.

Question 1 of 27070

BOTH INTERNATIONAL & INLAND In illustration D023RR below item "C" shows the arc of visibility of which of the following?

red sidelight

green sidelight

yellow flashing light

None of the above

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Question 1 / 2707066636eeb28f7522a1c51babc

Question 1 of 2707066636eeb28f7522a1c51babc

BOTH INTERNATIONAL & INLAND In illustration D023RR below item "C" shows the arc of visibility of which of the following?

Back

Question 1 of 27070

BOTH INTERNATIONAL & INLAND In illustration D023RR below item "C" shows the arc of visibility of which of the following?

If the question has a related picture, it will appear here.