Day 40-Oct 30-worksheet-PWD-Ferrous,non ferrous& properties

Which steel manufacturing process completely removes sulphur and is particularly suited for Indian pig iron?

In wrought iron manufacturing, the stage where slag is removed from puddle balls by forging is:

The richest iron ore with the highest Fe content is:

Naval brass is produced by adding 1% tin to which base brass?

The non-ferrous alloy used as a substitute for brass due to higher corrosion resistance is:

Which heat treatment relieves internal stresses produced during hardening?

Wrought iron cannot be permanently magnetised because of its fibrous structure.

Assertion (A): wrought iron is tougher and more elastic than mild steel. Reason (R): wrought iron contains higher carbon than mold steel, improving toughness and shock resistance.

The process of converting pig iron into wrought iron by stirring in a molten state is called:

(a)  

The specific gravity of mild steel is approximately: