Excess of silica in brick earth results in

Resins are

For melting one tonne of cast iron

Pick up the correct statement from the following:

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

To give a brilliant finish, the type of varnish used, is

A volatile substance added to a paint to make its application easy and smooth, is known as

Gneiss is obtained from

The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel…