🔍 Key Concepts

• Look closely at N in the illustration – it is the steel plating that actually forms the deck structure, not the interior wall or bottom structure. • Review the ship‑construction meanings of ceiling, flooring, furring, and spar deck/spar decking – they are used differently on steel ships than in a house. • Think about which term is used for a wooden walking surface laid over steel deck plating to protect the steel and improve footing.

💭 Think About

• Ask yourself: in steel ship construction, which of the four terms specifically refers to wood laid on top of metal deck plating as the tread surface? • Which terms instead relate to (a) the inner planking along the shell, (b) the transverse members at the bottom, or (c) an entire upper deck of a vessel? • If you removed the wooden deck but left the steel plating labeled N, which term would still correctly describe N itself, and which term would describe only the wood added above it?

✅ Before You Answer

• Verify in your notes which term means inner planking along the frames/shell plating inside the hold – eliminate that choice. • Verify which term refers to bottom transverse structural members – eliminate that choice for a deck question. • Confirm which remaining term is defined as a wooden deck or sheathing laid over steel deck plating as the walking surface – that’s the one that fits this illustration.