WT2 Prelim 2023

1. __________is used to form a casting in refining metals

2_________is used to limit the width of the molten metal after it is poured in between two metals

3. ___________ is a group of metals to where cast iron, wrought iron and steel belong.

4.________is a group of metal and alloys where precious metals belong

5. ________ in the United States is abundant in the earths crust and is mostly found in ores

6. Free electrons act as a_________ to hold ion core together

7.    High Grade ore and rich iron bearing are placed on ___________where it is smelted to make a pig iron.

8. A common metallic crystal also has a cubic unit cell with atoms located at 8corners and single atom at the cube center is _____________

9. _______________ is a crystal structure which unit cells are not with cubic symmetry

10. Corrosion, Oxidation and Reduction are example of____________ properties