Question 41 RVR02 - Master of LT 500-1600 GRT

The Correct Answer is C ### Why Option C ("all-round white or yellow light") is Correct Option C is correct because it accurately reflects the specific requirements for signaling intentions (like overtaking or meeting) on inland waterways, particularly in North America (governed by the Inland Navigational Rules Act of 1980 or "Inland Rules"). Rule 34(b) addresses the use of light signals for maneuvering and warning. Specifically for signaling intentions in restricted visibility or at night, a vessel must use a light (or lights) that is **all-round** (visible 360 degrees) and must be **white or yellow**. The color white or yellow is chosen to clearly distinguish the maneuvering signal from mandatory navigation lights (like masthead, sidelights, or stern lights). ### Why the Other Options Are Incorrect **A) all-round white light only:** This is too restrictive. While a white light is acceptable, the rules specifically permit either white or yellow. Excluding the yellow light makes this option incomplete and potentially incorrect depending on the specific light installed. **B) alternating white and yellow light:** Signaling lights for intentions are required to be steady, all-round lights, not alternating or flashing lights. Alternating or flashing lights are often reserved for specific vessel types (e.g., high-speed craft, air-cushion vessels) or different types of distress signals, not routine passing intention signals. **D) alternating red and yellow light:** This is incorrect for two major reasons: 1. **Alternating:** Passing intention lights must be steady, not alternating. 2. **Color:** Red is not an approved color for a passing intention signal light. Red lights are typically reserved for port sidelights or specific warning/danger lights (e.g., vessel restricted in ability to maneuver signals, towing signals), and using them for routine passing intentions would create confusion and violate the Rules.