Question 1 ONC04 - Mate of LT 500-1600 GRT

The Correct Answer is B **Explanation of Option B (Vessel constrained by her draft):** The term "vessel constrained by her draft" is explicitly defined in Rule 3(k) of the **International** Navigation Rules (COLREGs), which apply on the high seas and in waters connecting thereto which are navigable by seagoing vessels. This term is **not** included in the definitions (Rule 3) of the U.S. Inland Navigation Rules. The Inland Rules recognize "vessel restricted in her ability to maneuver" but do not use or define the status of being "constrained by her draft," making this the correct answer for the term *not* defined in the Inland Rules. **Explanation of Other Options (Why they are incorrect):** * **A) Seaplane:** This term is defined in the Inland Navigation Rules, Rule 3(m). * **C) Restricted visibility:** This term is defined in the Inland Navigation Rules, Rule 3(l). * **D) Underway:** This term is defined in the Inland Navigation Rules, Rule 3(i).