Question

Cast iron is used for the manufacture of :

(1) wrought iron and steel

(2) wrought iron, pig iron and steel

(3) wrought iron and pig iron

(4) pig iron, scrap iron and steel

Comments

ued -> *used

Answer 1

Ans. (1) wrought iron and steel

Sol. Cast iron is made from pig iron which is used for production of wrought iron & steel.