The main function of alumina in brick earth is

Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning…

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

Quick setting cement is produced by adding

Wrought iron contains carbon upto

A good brick earth should contain:

The base material for distemper, is

Which of the following is a mineral?

Pick up the correct statement from the following: