Pick up the correct statement from the following:

Pick up the incorrect statement from the following:

The most commonly used base for timber painting, is

Pick up the correct statement from the following:

The variety of pig iron used for the manufacture of steel by Bessemer process, is

The initial setting time for ordinary Portland cement as per IS specifications should not be less than

Whitworth compressed steel is obtained when molten steel is subjected to a pressure of

Gneiss is obtained from

In arches, stratified stones are placed so that their planes are