Metals and Mining sector

16. What is the process of coating a metal with a layer of zinc to prevent corrosion called?
a) Galvanization
b) Electroplating
c) Anodizing
d) Tinning

17. Which metal is commonly used for making electrical wires and cables due to its high conductivity?
a) Copper
b) Aluminum
c) Iron
d) Silver

18. What is the process of separating metals from their ores using heat and chemical reactions called?
a) Refining
b) Smelting
c) Milling
d) Leaching

19. Which metal is primarily used for making car bodies and construction materials due to its strength and durability?
a) Copper
b) Aluminum
c) Iron
d) Titanium

20. What is the process of converting scrap metal into reusable metal called?
a) Refining
b) Recycling
c) Upcycling
d) Remanufacturing