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

The presence of sand in brick earth prevents:

The PVC doors and windows are preferred as they are

Polymerization helps to improve the property of

Lime stones are generally known as

Minimum required water cement ratio for a workable concrete, is

The cast iron when heated to red heat with powdered red haemetite in an oven for increasing its toughness, is converted …

Pick up the correct statement from the following:

Iron ore may contain