🔍 Key Concepts

• Review what draft marks represent on a vessel and where they are typically located • Consider what transverse distance means (across the vessel vs. along the length)** • Think about the approximate beam (width) of a large offshore unit like DEEP DRILLER and how far apart port and starboard draft marks would realistically be

💭 Think About

• Is transverse distance measured from bow to stern or from port to starboard? How does that affect which dimension you should be thinking about? • Which of the answer choices looks most like a vessel’s length overall versus a realistic beam for an offshore drilling unit? • If draft marks are normally near the sides of the hull, what main hull dimension are you really being asked about?

✅ Before You Answer

• Be sure you are using the vessel’s width (beam) concept, not its length, when thinking about transverse distance • Compare each choice to a reasonable beam for a semi-submersible or similar large unit – eliminate any that are clearly too long for width • Confirm in your mind that transverse = side-to-side, longitudinal = fore-and-aft, and use only the side-to-side dimension for this question