Which statement describes a characteristic that makes casting suitable for mass production?

• A. Mass production efficiency due to formability and low cost per part at high volumes
• B. Requires exacting finishing
• C. Only for small components
• D. Cannot cast hollow shapes

Answer: (A)

Casting is valuable for mass production because it enables high-volume replication of identical parts with relatively low cost per piece once the mold is made. The key is that a mold or pattern is created once, and many parts can be produced quickly from it, so the fixed tooling cost is spread over a large number of units. Casting also allows forming near-net shapes and, with cores, hollow features, reducing the need for extensive secondary machining and material waste. This combination—quick, repetitive production of complex or hollow geometries at low per-part cost as volume grows—is what makes casting well-suited for mass production.

Other statements miss the core point: finishing requirements can vary and aren’t what primarily drives mass-production suitability, casting can produce larger or more complex parts (not just small ones), and hollow shapes can indeed be cast.