Question 36 GLI06 - Master or Mate of LT 100 GRT

The Correct Answer is A. **Explanation for Option A (Correct Answer):** In the **Inland** Rules of the Road (33 CFR Subchapter E, specifically Rule 34(c)(i)), when an overtaking vessel signals its intention to pass (using one short blast for passing on the starboard side), the vessel being overtaken (the vessel ahead) must respond. If the overtaken vessel agrees that the maneuver can be safely executed, they must sound the signal of agreement, which is **one short blast**. This signal confirms that the overtaken vessel understands the intention and agrees to the passing maneuver on that side. **Explanation for Other Options (Incorrect):** * **B) one prolonged, one short, one prolonged, and one short blast in that order:** This signal is defined in both International and Inland Rules (Rule 34(d)) as the **danger or doubt signal** (the "apprehension" signal) sounded by a vessel when she is approaching another vessel and is in doubt as to the other's intention or actions. It is not the signal of agreement for an overtaking maneuver. (Note: This signal is often described as the R-T-R-T signal, where 'T' is a short blast and 'R' is a prolonged blast, standing for Roger-Tare-Roger-Tare, or the vessel's call sign). * **C) two prolonged blasts:** Two prolonged blasts is not a standard signal used for responding to an overtaking agreement under either Inland or International Rules. Prolonged blasts are generally used for restricted visibility signals (Rule 35) or, in the International Rules, for a maneuvering signal indicating "I am a power-driven vessel making way" (Rule 34(a)(i)). * **D) two prolonged followed by two short blasts:** This signal (specifically two prolonged and two short blasts) is the sound signal used by a vessel being **pushed ahead or towed alongside** to indicate that she is a manned vessel, and she may use the prescribed maneuvering signals. It is not the signal of agreement for an overtaking maneuver.