The commonly used base for iron and steel work, is

The minimum compressive strength of 1<sup>st</sup> class bricks should be

Which one of the following is an air binding material?

In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is

Which of the following bricks are used for lining of furnaces?

Pick up the correct statement from the following:

Lime stone is not a

Glazing of clay products, is done

Percentage of silica in a good brick earth lies between