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Extractive Metallurgy

Extractive Metallurgy

askmemetallurgy provides you lots of fully solved Metallurgical Engineering (Extractive Metallurgy) questions and answers with Explanation. All students, freshers can attemp or download Metallurgical Engineering Physical Metallurgy quiz questions with answers as PDF files and eBooks.

1. Argentite is the ore of

Copper
Silver
Lead
Magnesium
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2. Flash smelting is used for the production of

Copper
Lead
Tungsten
Aluminium
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3. Tabling is based on the principle of

Modification of surface tension
Difference in density
Differential initial acceleration
Differential lateral movement
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4. Which one of the following minerals is a source of Lead ?

Pyrolusite
Malachite
Calomal
Cerrusite
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5. The process of reducing the ore with carbon in the presence of flux is known as

Sintering
Smelting
Calcination
Raosting
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6. Dow process is used in the extraction of

Zinc
Aluminium
Magnesium
Lead
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7. In froth floatation process, which one of the following acts a depressors

Thiocarbonates
NaCN
Pine oil
CuSO4
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8. Which is the most abundant ferrous metal present in the earth’s crust

Aluminium
Iron
Nickel
Cobalt
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9. Which one of the following has the lowest density

Lead
Aluminium
Zinc
Magnesium
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10. which one of the following process has the objective of Precipitation of metal in aqueous solution

Leaching
Cementation
Converting
Roasting
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11. The reagent used in the soda-lime-sinter(S-L-S) process of production of Al2O3.

NaOH
H2SO4
Na2CO3
HCl
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12. which one of the following process has the objective of Selective dissolution of metal.

Cementation
Leaching
Converting
Roasting
Discuss Here




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