BOTH INTERNATIONAL & INLAND What is the minimum fog signal required aboard a vessel between 12 meters and 20 meters in length at anchor?

Correct Answer: Option B — Any efficient sound signal every two minutes

Rule 35(i) states that a vessel of 12 meters or more but less than 20 meters in length at anchor is not required to sound the prescribed bell signals. Instead, she must make some other efficient sound signal at intervals of not more than two minutes to indicate her presence.