Question 29 MODU01 - Offshore Installation Manager

The Correct Answer is A. **Explanation for Option A (2) being correct:** The question specifies a vessel operating **INLAND ONLY** and refers to a barge that is **more than 50 meters long**. According to the U.S. Inland Navigation Rules (33 CFR Subchapter E, specifically Rule 30(b) regarding Anchored Vessels): 1. **Vessels less than 50 meters in length** are required to show one white anchor light (forward) where it can best be seen. 2. **Vessels 50 meters or more in length** must exhibit the light required in paragraph (b)(i) (the forward light) and **a second white anchor light** at or near the stern, at a lower level than the forward light. Since the barge is **more than 50 meters long** (meeting the criteria for Rule 30(b)(ii)), it is required to show **two** white anchor lights (one forward, one aft and lower). The designation of a "Secretary approved 'special anchorage area'" does not alter the fundamental lighting requirements based on the vessel's length outside of that specific area. **Why the other options are incorrect:** * **Option B (1) is incorrect:** A single anchor light is required only for vessels less than 50 meters in length. Since the barge is more than 50 meters long, one light is insufficient. * **Option C (3) is incorrect:** Inland Rules do not require three white anchor lights for a vessel anchored based solely on its length of more than 50 meters. (Three lights might be involved in specific towing configurations or other complex situations, but not standard anchoring for this size vessel). * **Option D (None) is incorrect:** While Rule 30(g) allows vessels less than 20 meters in length when anchored in a "special anchorage area" to omit anchor lights (unless the Secretary specifies otherwise), this exemption *does not apply* to vessels 50 meters or more in length. Therefore, the barge must display the required lights.