USCG Exam PracticeRule 27 — NUC and RAM (lights)
A vessel engaged in mine clearance operations exhibits three all-round green lights. What does this signal indicate to other vessels?
- ✓ It is dangerous for another vessel to approach within 1000 meters of the mine clearance vesselCorrect
- B. The vessel is restricted in her ability to maneuver and another vessel may pass on the green-light side
- C. The vessel is engaged in underwater operations with a clear passage on both sides
- D. The vessel is a RAM vessel at anchor with no obstruction present
Why A is correct
33 CFR §83.27(f) states that the three all-round green lights exhibited by a mine clearance vessel indicate that it is dangerous for another vessel to approach within 1000 meters of that vessel. This is distinct from the green lights used in dredging operations.
Cited:33 CFR §83.27