In formwork for the wall, the _____ are provided by vertical Struts and horizontal wales.

Forms whose components can be reused several times are known as the ___

The inside surface of formwork should be ____ so as to turn out a good concrete surface.

Identify the type of Arch given below.

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

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

The ______ formwork should be neither too dry nor too wet.

_________ lintels consist of pieces of timber which are placed across the opening.