Question 1 GLI05 - Master or Mate of LT 200 GRT

The Correct Answer is B **Explanation for Option B (Correct Answer):** The term "Vessel constrained by her draft" is a definition found exclusively in the **International Rules (COLREGs)**, specifically Rule 3(l). This term is used to define a power-driven vessel whose ability to deviate from her course is severely restricted because of her draft in relation to the available depth and width of the navigable water. The **Inland Navigation Rules** (33 CFR Subchapter E), which apply only to vessels on the internal waters of the United States, **do not define or use the term "vessel constrained by her draft."** **Explanation for Other Options (Incorrect Answers):** * **A) Seaplane:** This term *is* defined in the Inland Navigation Rules. Rule 3(a) of the Inland Rules defines a "vessel" to include every description of watercraft, including non-displacement craft and seaplanes, used or capable of being used as a means of transportation on water. * **C) Restricted visibility:** This term *is* defined in the Inland Navigation Rules. Rule 3(j) defines "restricted visibility" as any condition in which visibility is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms, or any other similar causes. * **D) Underway:** This term *is* defined in the Inland Navigation Rules. Rule 3(k) defines a vessel as "underway" when she is not at anchor, made fast to the shore, or aground.