The specific surface (in cm2/g) of a good Portland cement should not be less than

Sprit varnish consists of

The bulking of sand

The colour of brick depends upon the amount of iron oxide present in the clay.

The liquid part of the paint is called

The good clay for making bricks is

The defect caused due to over-maturity and unventilated storage of the wood during its transit, is called

The compressive strength of sandstone is

Granite is mainly composed of