Question 17 GLI08 - Limited OUPV

The Correct Answer is B **Why Option B ("A vessel at anchor") is correct:** According to the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 35(c) specifies the fog signal for a vessel at anchor. A vessel at anchor is required to sound rapidly, at intervals of not more than two minutes, the ringing of the bell for five seconds, and may supplement this signal with: **one short blast, one prolonged blast, and one short blast** (to warn an approaching vessel of her position and the possibility of collision). This combination of blasts is the distinct maneuvering or warning signal used specifically by a vessel at anchor under this rule. **Why the other options are incorrect:** * **A) A vessel towing:** The required fog signal for a vessel towing (a power-driven vessel of 50 meters or more in length) is specified in Rule 35(a) as **one prolonged blast** at intervals of not more than two minutes. If the vessel is less than 50 meters in length, the signal is also one prolonged blast (Rule 35(b)). The combination "one short, one prolonged, one short" is not the designated signal for towing. * **C) A sailing vessel underway with the wind abaft the beam:** A sailing vessel underway is classified under Rule 35(c) as a vessel that is "not making way." The required fog signal for a sailing vessel underway (making or not making way) is **one prolonged blast** (Rule 35(b)). * **D) A power-driven vessel underway and making way through the water:** The required fog signal for a power-driven vessel underway and making way is **one prolonged blast** at intervals of not more than two minutes (Rule 35(a)).