Question 48 GLI04 - Mate of LT 500-1600 GRT

The Correct Answer is C **Explanation for Option C (Correct Answer):** 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, which includes a vessel engaged in fishing while at anchor. Under the International Regulations for Preventing Collisions at Sea (COLREGs), Rule 35 outlines the sound signals in restricted visibility: * **Rule 35(c):** A vessel **not under command**, a **vessel restricted in her ability to maneuver** (which a vessel engaged in fishing while anchored effectively is, as it is restricted by both activity and anchorage), a vessel constrained by her draft, a sailing vessel, a vessel engaged in fishing, and a vessel engaged in towing or pushing shall sound at intervals of not more than 2 minutes **one prolonged blast followed by two short blasts**. Since the vessel is engaged in fishing, it falls under the vessels listed in Rule 35(c). **Explanation of Why Other Options are Incorrect:** * **A) A rapid ringing of the bell for five seconds at one-minute intervals:** This signal is specified in Rule 35(f) for a **vessel at anchor** to sound *in addition* to the required signal (a rapid ringing for about 5 seconds at intervals of not more than one minute). However, Rule 35(c) (one prolonged and two short) takes precedence because the vessel is also **engaged in fishing** (a vessel restricted in its ability to maneuver). The primary distinguishing signal for a vessel engaged in fishing (whether making way or stopped) or a vessel restricted in its ability to maneuver is the sequence of one prolonged and two short blasts. * **B) One prolonged and three short blasts at two-minute intervals:** This signal (one prolonged followed by three short blasts) is the signal reserved for a vessel being **towed** (Rule 35(e)), not a vessel engaged in fishing. * **D) A sounding of the bell and gong at one-minute intervals:** This signal is specified for a **vessel aground** (Rule 35(g)), not a vessel engaged in fishing while at anchor. (The signal is the rapid ringing of the bell for five seconds, followed immediately by the rapid sounding of the gong for five seconds, both at intervals of not more than one minute.)