Cast-in-Place (CIP) Concrete Deck is constructed by pouring concrete on site into forms.

• A. Cast-in-Place (CIP) Concrete Deck
• B. Precast Concrete Deck
• C. Timber Deck
• D. Corrugated Steel Deck

Answer: (A)

The main idea being tested is how a concrete deck is formed and placed. Cast-in-place means the concrete is poured on the actual site into temporary molds called forms that define the final shape. The deck becomes a single, continuous slab as it cures in place, rather than being assembled from pieces made elsewhere.

This is the best description because it directly contrasts with precast decks, which are manufactured off-site as individual components and then installed, and with timber decks, which use wood rather than poured concrete. Corrugated steel deck describes a steel form that may support concrete poured on top, but the core concept of the deck being poured on site into forms aligns with cast-in-place, not with those other methods.