🔍 Key Concepts

• Watertight bulkhead – what is its main purpose on any vessel or MODU? • Difference between structural bulkheads and non‑structural/joiner bulkheads • How a continuous bulkhead contributes to the strength and subdivision of a MODU hull

💭 Think About

• Ask yourself: if a bulkhead must be watertight and continuous, is it likely to be part of the ship’s strength, the accommodation lining, or just a partition? • Consider what a joiner bulkhead is normally made of and where it is used; would those materials usually be watertight and load‑bearing? • Think about whether an exterior or centerline location is required for a bulkhead to be watertight, or if watertightness is more about construction and purpose than exact position.

✅ Before You Answer

• Verify which type of bulkhead is designed to carry loads and contribute to hull strength. • Confirm what a joiner bulkhead is typically used for (hint: accommodations and interiors). • Check whether being continuous and watertight implies a primarily structural function rather than decorative or convenience‑related.