🔍 Key Concepts

• Structure of a transverse-framed ship and how members run (athwartships vs fore‑and‑aft) • Difference between tank top (inner bottom plating), shell plating (outer bottom), and the framing that supports them • Orientation and purpose of transverse vs longitudinal structural members in the double bottom

💭 Think About

• In double-bottom construction, which parts are flat plating surfaces and which are the stiffening members underneath? • If the ship is transverse-framed, do its principal supporting members under the inner bottom run across the ship or along the length of the ship? • Which option best describes a supporting member (stiffener) rather than a plating surface?

✅ Before You Answer

• Identify which choices describe plating (flat surfaces) and which describe framing members (stiffeners). • For a transverse-framed ship, confirm whether the main supporting floor members are transverse or longitudinal. • Eliminate any option that confuses the tank top/inner bottom plating or shell plating with the framing that supports them.