🔍 Key Concepts

• Distinguish between rod, tube, pipe, and bar based on shape and whether the interior is solid or hollow • Recognize a conventional break symbol in a mechanical drawing • Use the end view and sectional view to see if material is solid all the way through

💭 Think About

• Look closely at the right‑hand end view: do you see a hollow opening all the way through, or is it essentially solid material? • In the long side view, what does the wavy/irregular area in the middle represent in drafting—missing material, or just a way to shorten the drawing of a long part? • Based on standard drafting terms, which word (rod, tube, pipe, bar) best matches a long, round, mostly solid piece with this type of break?

✅ Before You Answer

• Verify whether the cross‑section shows a solid center or a through‑hole • Confirm if the central wavy section is a break symbol (used to shorten a long part) rather than an actual removed section • Match the part’s cross‑sectional shape (round vs rectangular) with the correct term: rod/pipe/tube (round) vs bar (often rectangular) before choosing.