Minimum required water cement ratio for a workable concrete, is

For the manufacture of stainless steel, steel is mixed with

Dextrin is

Resins are

The steel used for rails under heavy traffic and on sharp curves, is

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

A prime coat is given to steel work with

Which one of the following is an air binding material ?

Pick up the correct statement from the following: