Question 31

The Correct Answer is D **Explanation for Option D (Correct Answer):** Option D, "you are in immediate danger," is correct because it directly aligns with the exception provided in the International Regulations for Preventing Collisions at Sea (COLREGs), which govern both international and inland waters. Rule 2(b) (Responsibility) states that in "departing from these Rules" when necessary to avoid "immediate danger," due regard must be had to all dangers of navigation and collision. This rule is often referred to as the "General Prudential Rule" or the "Rule of Immediate Danger," allowing mariners to deviate from the prescriptive rules only when absolutely necessary to prevent a collision or casualty. **Explanation of Why Other Options are Incorrect:** * **A) out of sight of land:** Whether a vessel is in sight of land has no bearing on the requirement to follow the Navigation Rules. The Rules apply globally, 24 hours a day, regardless of proximity to land. * **B) no vessels are visible on radar:** Even if radar shows no contacts, the vessel must still maintain a proper look-out (visual and aural, in addition to radar) and adhere to all applicable rules (such as maintaining safe speed and following traffic separation schemes). The absence of radar contacts is not a justification for deviating from the Rules. * **C) no vessels are in sight visually:** Similar to option B, the mere absence of visible traffic does not permit a vessel to depart from the Rules. Proper procedures, such as maintaining a proper look-out and operating safely, must always be followed, as vessels may appear suddenly or be obscured. Deviation is only allowed under the specific condition of immediate danger (Rule 2(b)).