Rules of the Road · Restricted Visibility Signals
A vessel at anchor in restricted visibility must give what sound signal?
- AOne prolonged blast every 2 minutes
- BRapid ringing of a bell for about 5 seconds at intervals of not more than 1 minute✓ Correct
- CTwo short blasts every 2 minutes
- DOne prolonged followed by two short blasts every 2 minutes
Explanation
Rule 35(g) requires a vessel at anchor to ring the bell rapidly for about 5 seconds at intervals not exceeding 1 minute. On a vessel 100 meters or more, the bell is rung in the forepart of the vessel and is followed immediately by a rapid gong stroke in the after part. Additionally, a vessel at anchor may sound three blasts (short, prolonged, short) as a warning to an approaching vessel.
Authority: 72 COLREGS Rule 35(g)
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