Question 48 UFV01 - Master - Uninspected Fishing Vessels

The Correct Answer is C **Why Option C is Correct:** Option C ("One prolonged and two short blasts at two-minute intervals") is the correct fog signal for a vessel restricted in its ability to maneuver (RAM) or a vessel **at anchor** taking special consideration for being restricted in maneuverability due to its activity (such as fishing). This is derived from Rule 35(c) of the International Regulations for Preventing Collisions at Sea (COLREGs), which applies to both International and Inland waters (as Inland Rules generally mirror COLREGs for this signal): * **Rule 35(c)** specifies that a vessel **not under command**, a **vessel restricted in her ability to maneuver (RAM)**, a **vessel constrained by her draft**, a **sailing vessel**, a **vessel engaged in fishing**, and a **vessel engaged in towing or pushing** shall, at intervals of not more than two minutes, sound **one prolonged followed by two short blasts**. Although Rule 35(f) defines the signal for a vessel **at anchor** (rapid ringing of the bell), when a vessel engaged in fishing stops to anchor, the dominant signal required is often that which describes its activity and associated restriction in maneuverability (Rule 35(c)), especially when the safety hazard presented by the fishing activity is still relevant. Since the question specifically focuses on a vessel **engaged in fishing while at anchor**, the signal defined for a vessel engaged in fishing (Rule 35(c)) takes precedence over the standard anchor signal (Rule 35(f)) in this specific context, alerting other mariners to the activity and the potential restrictions. **Why the Other Options are Incorrect:** * **A) A rapid ringing of the bell for five seconds at one-minute intervals:** This is the fog signal prescribed for a vessel **at anchor** (Rule 35(f)). While the vessel is anchored, because it is also *engaged in fishing*, the signal for the activity (Rule 35(c)) is typically used to warn mariners of the operational restriction. * **B) One prolonged and three short blasts at two-minute intervals:** This signal (one prolonged and three short blasts) is reserved for the last vessel of a tow when she is manned (Rule 35(e)). * **D) A sounding of the bell and gong at one-minute intervals:** This combination of signals (bell and gong) is required for a vessel **at anchor** that is **100 meters or more in length** (Rule 35(g)). This is a size requirement, not an activity requirement for fishing vessels.