For high grade instruments the steel preferred to, is

For a good building stone, its specific gravity should the greater than

Geologically, marble is known as

Brittleness of cold is due to an excess of

Seasoning of timber is done for

The most commonly used base for timber painting, is

Index number expressing the relative sizes of both coarse and fine aggregates, is called

The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called:

The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucib…