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Metallurgy Mock Test-3

QuestionNo:1

The magnetic oxide of iron is

[A] Haematite
[B] Magnetite
[C] Siderite
[D] Limonite



QuestionNo:2

The most impure form of iron is

[A] Wrought iron
[B] (c) hard steel
[C] (b) Mild steel
[D] cast iron



QuestionNo:3

The slag formed in the blast furnace during the extraction of iron from haematite is

[A] Ca3 (PO4)2
[B] CaSiO3
[C] FeSiO3
[D] MnSiO3



QuestionNo:4

The iron formed in blast furnace is called

[A] Pig iron
[B] Wrought iron
[C] Steel
[D] Cast iron



QuestionNo:5

The copper metal is extracted from its

[A] Carbonate ore
[B] Sulphide ore
[C] Sulphate ore
[D] Chloride ore



QuestionNo:6

Copper matte is a molten mixture of

[A] Cu2S +little FeS
[B] Cu2S + little FeO
[C] Cu2O + little FeO
[D] Cu2O + little FeS



QuestionNo:7

Which of the following metal is obtained by the reduction of metal oxide with Hydrogen gas

[A] Cu
[B] Al
[C] Mg
[D] Fe



QuestionNo:8

In the extraction of copper, the slag formed in the blast furnace is

[A] FeS
[B] Cu2O
[C] Cu2S
[D] FeO



QuestionNo:9

Which of the following metal cannot occur in native state ?

[A] Cu
[B] Zn
[C] Ag
[D] Fe



QuestionNo:10

Belgian process is used for the extraction of

[A] Au
[B] Ag
[C] Cu
[D] Fe



QuestionNo:11

The device known as prolong is used in the extraction of following metal

[A] Zn
[B] Ag
[C] Cu
[D] Fe



QuestionNo:12

Spelter is impure form of

[A] Zn
[B] Ag
[C] Cu
[D] Fe



QuestionNo:13

The fuel used in Belgian process is

[A] Water gas
[B] Producer gas
[C] Coke
[D] Coal



QuestionNo:14

Aluminium is extracted from

[A] Mabnetite
[B] Bauxite
[C] Aluminium
[D] Haematite



QuestionNo:15

Which is not a mineral of aluminium

[A] Anhydrite
[B] Bauxite
[C] Corundum
[D] Diaspore