Question 20 RVR01 - Master of Unlimited Tonnage

The Correct Answer is B. **Explanation for Option B (Correct Answer):** Option B is correct based on the **Inland Navigational Rules (33 CFR Subchapter E)**, specifically Rule 9 (Narrow Channels). Rule 9(b) states: "An agreement between vessels is not required, but, in a narrow channel or fairway, a power-driven vessel **ascending or descending the river** or channel **has the right-of-way** over a vessel crossing the river or channel." In this scenario: * Your vessel is crossing the river. * The other power-driven vessel is ascending the river. * Therefore, the ascending vessel has the right-of-way over your crossing vessel. **Why the Other Options are Incorrect:** * **A) You are required to propose the manner of passage.** This is incorrect. While passing agreements are generally required between vessels meeting or overtaking, Rule 9(b) explicitly establishes a hierarchy (ascending/descending vessel has right-of-way over crossing vessel), meaning an agreement is **not** required for the crossing vessel to yield. The crossing vessel simply must not impede the flow of traffic. * **C) Your vessel has the right of way, but you are directed not to impede the other vessel.** This is incorrect. As the crossing vessel, you do **not** have the right-of-way. The ascending vessel has the right-of-way, and your primary responsibility is to avoid impeding it. * **D) The other vessel must hold as necessary to allow you to pass.** This is incorrect. The opposite is true. Since the other vessel is ascending the narrow channel, it has the right-of-way, and your vessel (the crossing vessel) must hold, slow down, or take other action necessary to allow the ascending vessel to proceed without impediment.