Identify the type of Arch given below.

____________ arches can be constructed from ordinary bricks or purpose made bricks or soft bricks.

________ stairs are now not frequently used.

_________ stairs have any geometrical shape and they require no newel posts.

A Stair turning through three right angles is known as a ____ stair.

The vertical or Front member of the step, which is connected to the treads, is known as a ______

The _______ stairs are useful where the space available is limited and where the traffic is less.

In case of formwork for the floor, the ____ supports should be firmly supported at the bottom.