The operation of removal of impurities or clay adhering to iron ores, is known as

For light and ornamental casting, the most unsuitable pig iron, is

The minimum compressive strength of Ilnd class bricks should be

Pick up the correct statement from the following:

The percentage of water for normal consistency, is

Stones used for rubble masonry must be

Which one of the following is an air binding material ?

Pick up the correct statement from the following:

Pick up the correct statement from the following: