Observe and identify
Foundation level, about 2 min. International COLREGs / IRPCS.
The situation
In restricted visibility, a metal sound comes from a vessel nearby. Listen to the complete ringing sequence.
What can you conclude from the signal in these circumstances?
- A vessel at anchor
- A vessel aground
- A pilot vessel underway
Answers and explanations
Lookout: Use the situation as well as the sound. Listen to the full sequence before deciding.
The sound answer
A vessel at anchor
A vessel at anchor. In or near restricted visibility, by day or night. The signal gives operating information; it does not establish a stand-on vessel. Rapid bell ringing for about five seconds. Vessels 12–20 m may instead make an efficient sound every two minutes; smaller vessels have a similar alternative.
Why the other options fall short
A vessel aground
A vessel at anchor. In or near restricted visibility, by day or night. The signal gives operating information; it does not establish a stand-on vessel. Rapid bell ringing for about five seconds. Vessels 12–20 m may instead make an efficient sound every two minutes; smaller vessels have a similar alternative.
A pilot vessel underway
A vessel at anchor. In or near restricted visibility, by day or night. The signal gives operating information; it does not establish a stand-on vessel. Rapid bell ringing for about five seconds. Vessels 12–20 m may instead make an efficient sound every two minutes; smaller vessels have a similar alternative.
Rule 35(g), (i), (j) · At anchor: bell
A vessel at anchor. In or near restricted visibility, by day or night. The signal gives operating information; it does not establish a stand-on vessel. Rapid bell ringing for about five seconds. Vessels 12–20 m may instead make an efficient sound every two minutes; smaller vessels have a similar alternative.