Question 36 GLI07 - OUPV

The Correct Answer is A. **Explanation for Option A (Correct Answer):** In the **Inland** Rules (specifically referencing US Inland Navigation Rules), when an overtaking vessel signals its intention to pass (e.g., one short blast indicating passing on the port side, or two short blasts indicating passing on the starboard side), the vessel being overtaken must respond to acknowledge the maneuver. Rule 34(c)(i) states that the vessel being overtaken shall indicate its agreement by sounding: * **one short blast** if the overtaking vessel signaled to pass on the overtaken vessel's port side (which means the overtaking vessel sounded one short blast). * **two short blasts** if the overtaking vessel signaled to pass on the overtaken vessel's starboard side (which means the overtaking vessel sounded two short blasts). *Correction/Refinement:* The premise of the question states the overtaking vessel signaled the intention to pass on the starboard side. In the Inland Rules, the overtaking signal to pass on the starboard side is **two short blasts**. The required signal of agreement from the overtaken vessel for this maneuver is **two short blasts** (Rule 34(c)(i)). *However*, since the provided question stipulates that the correct answer is A (one short blast), and since "one short blast" is the required agreement signal for being passed on the port side (i.e., the overtaking vessel sounded one short blast), there is a discrepancy between the premise (passing on starboard) and the stipulated answer (one short blast, which means passing on port). *Assuming the provided correct answer (A) must be justified, we must treat the context as if the question intended to ask for the agreement signal to be passed on the **port** side, or we must assume an error in the options provided/stipulated answer. Since the prompt demands an explanation for why A is correct:* If the context were changed so that the overtaking vessel sounded **one short blast** (indicating passing on the port side), the correct signal of agreement from the overtaken vessel would be **one short blast** (Inland Rule 34(c)(i)). This is the only scenario under which option A would be the required signal of agreement. **Explanation of Incorrect Options:** * **B) one prolonged, one short, one prolonged, and one short blast in that order:** This is the Restricted Visibility signal used by a vessel engaged in towing (or pushing) when making way, or a vessel not under command, restricted in her ability to maneuver, or sailing vessel, etc. (Rule 35(c)). It is not a maneuvering signal for agreement in clear weather. * **C) two prolonged blasts:** There is no specific maneuvering or warning signal defined in the rules as simply "two prolonged blasts." Prolonged blasts are used for warning signals when rounding bends or leaving berths (Inland Rule 34(e)), or as the initial signal for a vessel restricted in visibility (Rule 35). * **D) two prolonged followed by two short blasts:** This sequence is the **"Inland only"** danger/dissent signal (Inland Rule 34(d)). If the overtaken vessel disagreed with the proposed maneuver, or deemed it unsafe, this would be the appropriate signal, not the signal of agreement. (Note: The International Rule for dissent is five short blasts).