Question 41 RVR04 - Master or Mate of LT 200 GRT

The Correct Answer is C **Explanation for Option C (Correct Answer):** Option **C) all-round white or yellow light** is correct because it accurately reflects the requirements established by the Inland Navigational Rules (specifically the Inland Rules) regarding the signals used by power-driven vessels to indicate passing intentions. * Rule 34(a) of the Inland Rules governs maneuvering and warning signals. * Rule 23 and associated rules detail navigation lights. * When a vessel uses a light to signal passing intentions (in addition to or instead of sound signals), this light—often referred to as the "flashing light" or "passing signal light"—must be an **all-round light** that is either **white or yellow**. This ensures the signal is visible from all directions and clearly distinguishable from standard navigation lights. **Explanation of Why Other Options Are Incorrect:** * **A) all-round white light only:** This is too restrictive. While white is acceptable, the Inland Rules explicitly permit the use of an all-round yellow light as an alternative for the passing signal light, making "white light *only*" an incomplete description of the regulation. * **B) alternating white and yellow light:** Signaling lights for passing intentions do not alternate colors. They are required to be a steady color (either white or yellow) and may be flashed (short, rapid flashes) to indicate intent, but the color itself does not alternate between white and yellow. Alternating lights are generally reserved for special-purpose vessels (e.g., search and rescue). * **D) alternating red and yellow light:** Red lights are generally reserved for warning signals or indicating the port (left) side of a vessel. Using red in an alternating passing signal light would violate the standard color coding of navigation signals and is not permitted under the Inland Rules for indicating passing intentions.