The best primer used for structural steel work is

According to Indian standard specifications, the temperature for curing is

The burning of bricks in kilns is complete within

The stone used for the construction of curved or ornamental work should be soft.

The compressive strength of second elass bricks should bot be less than

The hydraulic lime which resembles very much with Portland cement in its chemical composition is called.

The length of a curved tile varies from

The colour of granite is

The rocks formed due to solidification of molten mass laying below or above the earth surface, are called