Question 3 TV03 - Towing Vessels - Western Rivers

The Correct Answer is B **Explanation for Option B (it is a large course change) being correct:** This question references Rule 8 (Action to Avoid Collision), specifically Rule 8(b) of the COLREGS (International Regulations for Preventing Collisions at Sea). Rule 8(b) states that "Any alteration of course and/or speed to avoid collision shall, if the circumstances of the case admit, be **large enough to be readily apparent to another vessel observing visually or by radar; a succession of small alterations of course and/or speed should be avoided.**" A course change alone is most effective only when it is large and unambiguous. A large course change immediately communicates intent to the other vessel and allows the situation to be quickly resolved, ensuring that the action is readily apparent and understood. **Explanation of why other options are incorrect:** * **A) the course change is to starboard:** While Rule 19 (Conduct of Vessels in Restricted Visibility) and certain Rules in Section II (Conduct of Vessels in Sight of One Another) suggest turning to starboard in specific meeting situations, the general requirement for *any* effective evasive action (whether course change alone or with speed reduction) is that it must be large. A small change to starboard is insufficient if it is not readily apparent. * **C) it is done in a succession of small course changes:** This is explicitly contrary to Rule 8(b), which mandates that "a succession of small alterations of course and/or speed should be avoided." Small, successive changes create confusion, are difficult to detect visually or by radar, and often lead to 'oscillation' or 'wrestling' with the other vessel's maneuvers, making the close-quarters situation worse. * **D) it is NOT done too early:** While Rule 8(a) requires action to be taken in ample time, the effectiveness of the *type* of action (course change alone) is determined by its magnitude, not the timing. If a course change is chosen, it must be large regardless of when it is initiated.