Question 50 ONC06 - Master LT 100 GRT

The Correct Answer is B **Why Option B ("A vessel is in distress") is correct:** According to both the International Regulations for Preventing Collisions at Sea (COLREGs Rule 37) and Inland Navigation Rules, any fog signal (sound signal) made continuously, usually by ringing a bell or sounding a whistle or horn rapidly, other than the designated maneuvering or warning signals, is an internationally recognized signal indicating that the vessel is in distress and requires assistance. The continuous sounding of a fog whistle is one such method used to indicate distress. **Why the other options are incorrect:** * **A) A request that the draw span of a bridge to be opened:** Bridge opening requests typically involve a specific short blast sequence (e.g., one long blast followed by one short blast, or simply one long blast, depending on local rules) or communication via radio, not the continuous sounding of a fog whistle. * **C) That the vessel is anchored:** A vessel anchored in restricted visibility (fog) signals its position by sounding a specific sequence on the bell, usually rapid ringing for 5 seconds every minute, optionally followed by three distinct blasts (short, long, short) on the whistle, but never a continuous sounding. * **D) A vessel is broken down and drifting:** While a broken-down vessel may certainly be in distress, the continuous sounding of the fog whistle specifically communicates the urgency of "distress" (Option B). A vessel merely restricted in its ability to maneuver due to breakdown would typically signal with four short blasts (the 'danger' signal) or the appropriate restricted maneuverability signal, not a continuous whistle.