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Identify the type of arch shown in the figure below.

A pointed arch built of wedge-shaped voussoirs, with two curved sides meeting at a pointed top; dashed lines show the springing line and the centres of the two arcs.

  • A.Flat arch
  • B.Relieving arch
  • C.Gothic arch
  • D.Corbel arch

Answer: C

The figure shows a Gothic arch, a pointed arch whose two curves meet at an apex. The dashed lines show the two centres at the springing level and the curves drawn from them, which give the pointed shape. A flat arch has a horizontal soffit, a relieving arch is built over a lintel to relieve it of the load above, and a corbel arch is formed by projecting courses of masonry stepped inward, so none of these has the pointed curved form shown here.

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