Specific gravity for most of the building stones lies between

Pick up the incorrect statement from the following:

A good building stone should not absorb water more than

The most important tool in brick laying for lifting and spreading mortar and for forming joints is

Pick up the correct statement from the following:

For the manufacture of Portland cement, the proportions of raw materials used, are

The stones obtained by blasting are used as

Slacking of lime is affected by

When a brick is immersed in water for 24 hours and then dried, if