Question 27 GLI05 - Master or Mate of LT 200 GRT

The Correct Answer is C ### Why Option C (Sidelights and two towing lights) is correct: The question specifies a power-driven vessel that is **pushing ahead or towing alongside** and restricts the location to the **Western Rivers** (specifically above mile 106.1 on the Mississippi River, which is the inland boundary for vessels subject to special Western Rivers rules). On the Western Rivers, vessels pushing ahead or towing alongside are subject to **special lighting regulations** outlined in 33 CFR § 89.25 and other parts specific to Inland Rules (Rule 24, Inland Annex V). According to 33 CFR § 89.25 (Power-driven vessels pushing ahead or towing alongside): * On the Western Rivers (except for a short segment near the Gulf of Mexico), a power-driven vessel when pushing ahead or towing alongside shall exhibit **sidelights** and **two towing lights** in a vertical line at the stern. * Unlike standard towing on inland waters elsewhere, these vessels do **not** exhibit the white masthead lights or the standard towing light configuration (three masthead lights or two masthead lights plus the towing light above the stern light). Therefore, the required configuration is **sidelights and two towing lights**. ### Why the other options are incorrect: **A) one masthead light, sidelights, and stern light:** This configuration describes a standard power-driven vessel less than 50 meters in length, not a vessel engaged in towing/pushing operations. Furthermore, it incorrectly substitutes a single stern light for the two required towing lights. **B) two masthead lights, sidelights, and stern light:** This configuration is incorrect for a towing vessel. It only shows two masthead lights, which is typical for a standard power-driven vessel 50 meters or more in length, and it incorrectly specifies a single stern light instead of the two required towing lights. **D) two masthead lights, sidelights, and two towing lights:** This configuration is incorrect because vessels pushing or towing alongside on the Western Rivers **do not exhibit the white masthead lights** (the white forward lights indicating a towing operation). They are only required to show sidelights and the two towing lights at the stern. (Note: Standard towing vessels *not* on the Western Rivers, or those towing astern, would show masthead lights, but not under this specific Western Rivers rule for pushing/towing alongside.)