The minimum compressive strength of 1^st class bricks should be

Good quality stones must

Permanent magnets are made of high carbon steel and

Strength of cement concrete primarily depends upon

Commonly used thinner in

Percentage of carbon content in mild steel is

For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is

Pick up the synthetic resin from the following:

Cast iron . . . . . . . .