Asbestos is

Sea sand used in structures causes

The most commonly used synthetic abrasive is

Cast iron . . . . . . . .

In arches, stratified stones are placed so that their planes are

The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:

Assertion A : Pure lime takes a long time to develop adequate strength.<br>Reason R : Pure lime has slow hardening…

The stretcher bond in brick masonry can be used only when the thickness of wall is

Pick up the correct statement from the following: