Barrel Vault is described as which of the following?

Barrel Vault is described as which of the following?

• A. An arch extended in series
• B. A curved roof formed by a single arch
• C. A dome formed by a ring of arches
• D. An arch rotated 360 degrees

Answer: (D)

The barrel vault is a long, rounded ceiling created by extending a single circular arch along a straight line, so it forms a tunnel-like passage. It’s essentially an arch extended in series to cover a long space. This matches the idea of a continuous arch system along the length, rather than a single curved roof or a domed form. A dome is produced by rotating an arch or curve around an axis to create a hemispherical surface, and rotating an arch 360 degrees is not what a barrel vault represents.

The barrel vault is a long, rounded ceiling created by extending a single circular arch along a straight line, so it forms a tunnel-like passage. It’s essentially an arch extended in series to cover a long space.

This matches the idea of a continuous arch system along the length, rather than a single curved roof or a domed form. A dome is produced by rotating an arch or curve around an axis to create a hemispherical surface, and rotating an arch 360 degrees is not what a barrel vault represents.