BOTH INTERNATIONAL & INLAND Which display of...

Question 1 of 2707066636eeb28f7522a1c51ba74

BOTH INTERNATIONAL & INLAND Which display of lights shown in illustration D072RR below indicates a dredge underway and not dredging?

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Question 1 of 27070

BOTH INTERNATIONAL & INLAND Which display of lights shown in illustration D072RR below indicates a dredge underway and not dredging?

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🔍 Key Concepts

• Review Rule 27(d) – Dredging and underwater operations in the Navigation Rules to see what extra all‑round lights a dredge shows when actually dredging (red‑white‑red plus the red/green obstruction lights). • Compare that with a normal power‑driven vessel underway under Rule 23, which does not show any special all‑round red or green obstruction lights. • Remember that when a dredge is underway but not dredging, it is no longer restricted in ability to maneuver, so it should not display the special RAM/dredging light combinations.

💭 Think About

• For each diagram, ask yourself: does this vessel appear to be restricted in her ability to maneuver, or does she look like an ordinary power‑driven vessel underway? • Look carefully for any extra all‑round red or green lights that would mark an obstruction side or a safe‑passing side; which choices do not show that pattern? • Which vertical stack of lights could represent just the normal masthead arrangement of a power‑driven vessel underway, without the red‑white‑red RAM signal or extra obstruction lights?

✅ Before You Answer

• Verify which options show red or green all‑round lights in addition to side lights – those indicate a dredge that is actually dredging (restricted) rather than just underway. • Check if any option shows a red‑white‑red vertical stack of all‑round lights – that is the RAM signal and would mean the vessel is engaged in operations, not merely underway. • After eliminating all patterns that include RAM or obstruction lights, confirm that the remaining choice could represent a power‑driven vessel underway only, with no special operation lights.