Question 44

The Correct Answer is D **Explanation for Option D (Correct Answer):** According to both the International Regulations for Preventing Collisions at Sea (COLREGs) (Rule 34(c)) and the Inland Rules (33 CFR § 83.34(c)), when vessels are in sight of one another, a signal consisting of **three short blasts** means: "**My engines are operating astern**" (i.e., the vessel is backing up or its engines are engaged to stop her way). This signal explicitly indicates that Vessel "A" is backing engines. **Explanation of Incorrect Options:** * **A) Vessel "A" intends to hold course and speed:** There is no specific whistle signal for merely holding course and speed. Signals related to action or intent are generally required when maneuvering or altering course/speed significantly relative to other vessels. * **B) Vessel "A" is sounding a signal of doubt:** A signal of doubt (or danger signal) consists of **five or more short and rapid blasts**. Three short blasts have a specific, definite meaning (backing engines) and are not a signal of doubt. * **C) Vessel "A" proposes to cross ahead of the other vessel:** Signals for passing or crossing proposals (like "I intend to leave you on my port side" or "I intend to leave you on my starboard side") are usually one or two short blasts, often used in conjunction with specific rules (like in meeting, crossing, or overtaking situations, depending on Inland or International rules). Three short blasts specifically indicate reversing engines, not proposing to cross ahead.