Question 44 FCP01 - First Class Pilot

The Correct Answer is D. **Why option D ("Vessel "A" is backing engines") is correct:** According to Rule 34 (Maneuvering and Warning Signals) of both the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Rules (which govern U.S. waters), a power-driven vessel using the whistle must sound specific signals to indicate maneuvers. The signal of **three short blasts** means: "I am operating astern propulsion" (or "I am backing engines"). **Why the other options are incorrect:** * **A) Vessel "A" intends to hold course and speed:** There is no specific whistle signal mandated by COLREGS or Inland Rules solely for intending to hold course and speed. Maintaining course and speed is generally the obligation of the Stand-on vessel in a crossing situation, but it is not communicated by three short blasts. * **B) Vessel "A" is sounding a signal of doubt:** A signal of doubt or disagreement regarding a proposed maneuver is signified by **five or more short and rapid blasts** (the danger signal). Three short blasts has a definite meaning (astern propulsion), not doubt. * **C) Vessel "A" proposes to cross ahead of the other vessel:** In a crossing situation under Inland Rules (or a narrow channel/overtaking situation under COLREGS), a vessel proposing to cross ahead or pass to port would typically sound **two short blasts** ("I intend to leave you on my starboard side"). Three short blasts specifically means backing up.