Question 36 ONC06 - Master LT 100 GRT

The Correct Answer is A. **Explanation for Option A (Correct Answer):** According to the U.S. Inland Navigational Rules (specifically Rule 34(c) regarding maneuvering signals in sight of one another), when an overtaken vessel agrees to the overtaking vessel's proposal to pass, the overtaken vessel must sound the appropriate answering signal. The overtaking vessel's initial signal of intent to pass on your starboard side is typically **one short blast** (meaning, "I intend to overtake you on your starboard side"). The overtaken vessel's signal of agreement is **one short blast**, which indicates assent and confirms the proposal (meaning, "I agree to be overtaken on my starboard side"). **Explanation of Incorrect Options:** * **B) one prolonged, one short, one prolonged, and one short blast in that order:** This signal sequence (known as the danger/doubt signal) is the **"General Prudential Rule"** signal, used only to indicate doubt or disagreement about the safety of the proposed maneuver. It is *not* the signal for agreement. * **C) two prolonged blasts:** This signal has no standard meaning for indicating agreement to be overtaken. A single prolonged blast is the signal for a vessel leaving a dock or approaching a bend, while two prolonged blasts are often used as the "Stand-on" signal in restricted visibility maneuvering rules, but not for direct agreement to an overtaking maneuver. * **D) two prolonged followed by two short blasts:** This sequence is the signal prescribed by the **International Regulations (COLREGs)** for agreement to an overtaking maneuver when in sight of one another. However, the question specifies **"INLAND ONLY"**. Under U.S. Inland Rules, the signal of agreement for an overtaking maneuver is simplified to **one short blast** (for passing on the starboard side) or **two short blasts** (for passing on the port side), mirroring the initiating signal. This option is incorrect for Inland waters.