You see the lights shown. This is a __________.

You see the lights shown. This is a __________.

• A. Vessel fishing
• B. Vessel underway and towing
• C. Vessel pushing ahead
• D. Vessel towing a barge alongside

Answer: (D)

In navigation lights, an amber towing light signals that the vessel is engaged in towing another vessel or object. When a barge is being moved alongside, the towing vessel adds this yellow light in addition to its usual lights, so other vessels can recognize the towing setup and adjust course or speed accordingly. The image’s amber towing light indicates a towing operation rather than just moving under its own power, fishing activity, or pushing a barge ahead, which have different light patterns. Therefore, the configuration shown matches a vessel towing a barge alongside.

In navigation lights, an amber towing light signals that the vessel is engaged in towing another vessel or object. When a barge is being moved alongside, the towing vessel adds this yellow light in addition to its usual lights, so other vessels can recognize the towing setup and adjust course or speed accordingly. The image’s amber towing light indicates a towing operation rather than just moving under its own power, fishing activity, or pushing a barge ahead, which have different light patterns. Therefore, the configuration shown matches a vessel towing a barge alongside.