What term describes the wedge-block pieces that form an arch?

What term describes the wedge-block pieces that form an arch?

• A. Voussoirs
• B. Order
• C. Crepidoma
• D. Naos

Answer: (A)

Wedge-shaped blocks that form an arch are called voussoirs. Each block is cut to taper on its inner edge so when they are arranged, they create the curved shape and transfer the load down to the supporting supports. The central piece at the top is the keystone, which locks the others in place and stabilizes the arch. The other terms refer to different architectural concepts: an order is about the system of columns and entablature, crepidoma is the stepped platform under a temple, and naos is the main inner chamber of a temple.

Wedge-shaped blocks that form an arch are called voussoirs. Each block is cut to taper on its inner edge so when they are arranged, they create the curved shape and transfer the load down to the supporting supports. The central piece at the top is the keystone, which locks the others in place and stabilizes the arch. The other terms refer to different architectural concepts: an order is about the system of columns and entablature, crepidoma is the stepped platform under a temple, and naos is the main inner chamber of a temple.