What is the horizontal separation required between obstruction lights and RAM lights on a dredge?

The correct answer is that there should be at least 2 meters of horizontal separation between obstruction lights and RAM (Restricted Ability to Maneuver) lights on a dredge. This separation is important for ensuring visibility and reducing confusion for other vessels navigating in the vicinity of the dredge.

Obstruction lights are used to signal the presence of certain features on a vessel that may pose a hazard, while RAM lights indicate that the vessel is restricted in its ability to maneuver. If these lights are too close together, it could lead to misinterpretation of the signals, especially during low visibility situations or at night. The 2-meter separation helps to clearly distinguish between the two types of signaling, aiding in safe navigation and compliance with maritime regulations.