Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as

Vanadium steel is generally used for

Excess of silica in brick earth results in

Lime mortar is generally made with

Pick up the correct statement from the following:

Crushing strength of a good building stone should be more than

In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as

Asbestos . . . . . . . .

Shingle is