🔍 Key Concepts

• Pillar vs. girder – think about vertical vs. horizontal structural members and what each one supports. • How primary longitudinal members in the double bottom are named compared to small brackets or beams. • Typical ship terminology – which of these choices is a standard, specific structural term in naval architecture texts?

💭 Think About

• Look closely at the direction and length of member F – is it mainly vertical or mainly horizontal and fore‑and‑aft? • What major structure does F directly support or stiffen: the deck, the inner bottom, or the shell? • Which of the answer choices sounds like a general description, and which sounds like the precise name used in structural drawings for a large, continuous member like F?

✅ Before You Answer

• Verify whether F runs fore‑and‑aft near the bottom or vertically between two decks. • Check if any other clearly vertical columns are shown and how they differ from F. • Eliminate options that are not a standard structural term (ask yourself which term you would actually see on a ship’s construction plan).