INTERNATIONAL ONLY Which vessel may NOT...

Question 1 / 2707066636eeb28f7522a1c51bea8

Question 1 of 2707066636eeb28f7522a1c51bea8

INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line?

Question 1 of 27070

INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line?

🔍 Key Concepts

• International Rules (COLREGS) – Part C: Lights and Shapes • Meaning of two all-round red lights in a vertical line ("red over red") • Special status of vessel constrained by her draft (Rule 28) vs vessels not under command/grounded (Rule 27) and fishing vessels (Rule 26)

💭 Think About

• For each vessel type listed, recall or look up what their required lights are at night under the International Rules. • Ask yourself: when do two all-round red lights in a vertical line indicate a loss of maneuverability or special restriction, and which vessel types fall into that category? • Consider which of these vessel types has its own unique light configuration that does NOT use two all-round red lights stacked vertically.

✅ Before You Answer

• Verify in the International Navigation Rules which vessel(s) display two all-round red lights vertically (hint: check Rules 26, 27, and 28). • Confirm whether a fishing vessel in close proximity, a dredge, or a vessel constrained by draft ever uses the same "two red" signal as a vessel not under command or aground. • Make sure you distinguish between special status lights (e.g., restricted ability to maneuver, not under command) and normal operating lights (e.g., fishing, constrained by draft).

Question 1 of 27070

INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line?

A vessel aground

A trawler fishing in close proximity to other trawlers

A dredge

A vessel constrained by her draft

Question 1 / 2707066636eeb28f7522a1c51bea8

Question 1 of 2707066636eeb28f7522a1c51bea8

INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line?

Back

Question 1 of 27070

INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line?