EM3 Metallurgy Questions and Answers
c - ANS-1. It involves metallurgical processes intended to recover the desired metal
either from the ore or from the concentrate.
a. Physical metallurgy b. Pyrometallurgy c. Extractive metallurgy d. Ferrous
metallurgy
b - ANS-2. It includes extraction processes of metal values from the ore or
concentrate which are undertaken at high temperatures.
a. Ore dressing b. Pyrometallurgy c. Smelting d. Converting
d - ANS-3. Acid leaching of copper and gold cyanidation are examples of this group
of metallurgical operations.
a. Pyrometallurgy b. Electrowinning c. Mineral dressing d. Hydrometallurgy
b - ANS-4. Reduction of iron oxides into metallic iron using carbon monoxide from
partial combustion of carbon is an example of .
a. Converting b. smelting c. Fire assaying d. Refining
b - ANS-5. A liquid formed at high temperature which consists of a mixture of metal
oxide silicates
a. melt b. slags c. Matte d. Calcine
d - ANS-6. In smelting, slags acts as the __ of the impurities present in metal being
smelted.
a. Source b. Reducer c. Precipitant d. Collector
d - ANS-7. These are materials where all volatiles have been removed by heating.
a. Sinter b. Blister c. Dross d. Calcine
a - ANS-8. Matte is a high temperature homogenous liquid solution of a mixture of
__.
a. Metal sulfides b. Metal oxides c. Arsenides d. Antimonides
c - ANS-9. Spelter is impure ___ produced by smelting process.
a. Iron b. Copper c. Zinc d. Tin
b - ANS-10. Fluxes are added to the material being smelted to form __.
a. Matte b. Slag c. Speiss d. Dross
c - ANS-11. One effect of flux on the slag formed is to __ .
a. Oxidize the desired metal c. Decrease the melting point b. Increase the melting
point d. Increase viscosity
a - ANS-12. In sintering, fines are agglomerated into lumps by heating until __. of
the surfaces occurs.
a. Partial fusion b. Partial Oxidation c. Complete Oxidation d. Complete fusion
, b - ANS-13. It is the product of an iron blast furnace.
a. Wrought iron b. Pig iron c. Malleable iron d. Cast iron
d - ANS-14. It is one of the main impurities in pig iron.
a. Chromium b. Nickel c. Calcium d. Carbon
c - ANS-15. It is the fuel in an iron blast furnace.
a. Coal b. Limestone c. Coke d. Bunker Oil
d - ANS-16. Coke is produced from coal by __.
a. Flotation b. Comminution c. Solvent Extraction d. Destructive Distillation
a - ANS-17. It occurs during the air blast in an iron blast furnace.
a. Partial combustion of coke c. Partial oxidation of iron
b. Complete combustion of coke d. Partial oxidation of impurities
b - ANS-18. The process wherein air is blown through molten pig iron or matte
where by sulfur and other impurities are removed
from the melt.
a. Smelting b. Converting c. Blowing d. Roasting
d - ANS-19. It occurs during the blowing stage in a converting process.
a. solidification of metal c. Solidification of impurities
b. Reduction of metal d. Oxidation of impurities
c - ANS-20. White metal is an impure __ produced in an intermediate stage of
converting process.
a. FeS2 b. PbS c. Cu2S d. ZnS
c - ANS-21. It is impure copper produced in copper converting process.
a. Sinter b. Clinker c. Blister d. Spelter
a - ANS-22. It is a pig iron converting process.
a. Bessemer process b. Merryl Crowe Process c. Furan Process d. Durville process
b - ANS-23. PASAR uses __ smelting process in smelting copper concentrates.
a. Open Hearth b. Flash c. Kaldo d. Bessemer
d - ANS-24. The end product of PASAR smelting process that goes to the refinery.
a. Blister copper b. Cathode Copper c. Black Copper d. Anode Copper
d - ANS-25. It is a major gaseous product of sulfide roasting.
a. CO b. SiO2 c. CO2 d. SO2
a - ANS-26. It is a product of sintering process.
a. Tungsten Carbide Cutting Tips c. Bronze rivets
b. Aluminum rivets d. Tool steel cutting tips
c - ANS-1. It involves metallurgical processes intended to recover the desired metal
either from the ore or from the concentrate.
a. Physical metallurgy b. Pyrometallurgy c. Extractive metallurgy d. Ferrous
metallurgy
b - ANS-2. It includes extraction processes of metal values from the ore or
concentrate which are undertaken at high temperatures.
a. Ore dressing b. Pyrometallurgy c. Smelting d. Converting
d - ANS-3. Acid leaching of copper and gold cyanidation are examples of this group
of metallurgical operations.
a. Pyrometallurgy b. Electrowinning c. Mineral dressing d. Hydrometallurgy
b - ANS-4. Reduction of iron oxides into metallic iron using carbon monoxide from
partial combustion of carbon is an example of .
a. Converting b. smelting c. Fire assaying d. Refining
b - ANS-5. A liquid formed at high temperature which consists of a mixture of metal
oxide silicates
a. melt b. slags c. Matte d. Calcine
d - ANS-6. In smelting, slags acts as the __ of the impurities present in metal being
smelted.
a. Source b. Reducer c. Precipitant d. Collector
d - ANS-7. These are materials where all volatiles have been removed by heating.
a. Sinter b. Blister c. Dross d. Calcine
a - ANS-8. Matte is a high temperature homogenous liquid solution of a mixture of
__.
a. Metal sulfides b. Metal oxides c. Arsenides d. Antimonides
c - ANS-9. Spelter is impure ___ produced by smelting process.
a. Iron b. Copper c. Zinc d. Tin
b - ANS-10. Fluxes are added to the material being smelted to form __.
a. Matte b. Slag c. Speiss d. Dross
c - ANS-11. One effect of flux on the slag formed is to __ .
a. Oxidize the desired metal c. Decrease the melting point b. Increase the melting
point d. Increase viscosity
a - ANS-12. In sintering, fines are agglomerated into lumps by heating until __. of
the surfaces occurs.
a. Partial fusion b. Partial Oxidation c. Complete Oxidation d. Complete fusion
, b - ANS-13. It is the product of an iron blast furnace.
a. Wrought iron b. Pig iron c. Malleable iron d. Cast iron
d - ANS-14. It is one of the main impurities in pig iron.
a. Chromium b. Nickel c. Calcium d. Carbon
c - ANS-15. It is the fuel in an iron blast furnace.
a. Coal b. Limestone c. Coke d. Bunker Oil
d - ANS-16. Coke is produced from coal by __.
a. Flotation b. Comminution c. Solvent Extraction d. Destructive Distillation
a - ANS-17. It occurs during the air blast in an iron blast furnace.
a. Partial combustion of coke c. Partial oxidation of iron
b. Complete combustion of coke d. Partial oxidation of impurities
b - ANS-18. The process wherein air is blown through molten pig iron or matte
where by sulfur and other impurities are removed
from the melt.
a. Smelting b. Converting c. Blowing d. Roasting
d - ANS-19. It occurs during the blowing stage in a converting process.
a. solidification of metal c. Solidification of impurities
b. Reduction of metal d. Oxidation of impurities
c - ANS-20. White metal is an impure __ produced in an intermediate stage of
converting process.
a. FeS2 b. PbS c. Cu2S d. ZnS
c - ANS-21. It is impure copper produced in copper converting process.
a. Sinter b. Clinker c. Blister d. Spelter
a - ANS-22. It is a pig iron converting process.
a. Bessemer process b. Merryl Crowe Process c. Furan Process d. Durville process
b - ANS-23. PASAR uses __ smelting process in smelting copper concentrates.
a. Open Hearth b. Flash c. Kaldo d. Bessemer
d - ANS-24. The end product of PASAR smelting process that goes to the refinery.
a. Blister copper b. Cathode Copper c. Black Copper d. Anode Copper
d - ANS-25. It is a major gaseous product of sulfide roasting.
a. CO b. SiO2 c. CO2 d. SO2
a - ANS-26. It is a product of sintering process.
a. Tungsten Carbide Cutting Tips c. Bronze rivets
b. Aluminum rivets d. Tool steel cutting tips
