Question

A recent development known as the ___________ roof has combine the advantages of flat roofs and curved roof.

(a) Corrugated Inclined

(b) Doubly curved tile

(c) Asbestos cement tile

(d) Galvanising iron tiles

The question was asked in class test.

This is a very interesting question from Curved Roofs topic in division Roofing Materials of Construction & Building Materials

Answer 1

The correct answer is (b) Doubly curved tile

The explanation: Here, the precast units of cement concrete tiles are prepared at the site. The size of the tile is kept about 700 mm x 700 mm with a uniform thickness of at least 20 mm. The cement concrete of proportion 1:2:4 is adopted and the units are properly cured.