The variety of pig iron used for manufacture of wrought iron, is

Wrought iron is manufactured from pig iron by

A

Refining

B

Pudding

C

Shingling

D

All the above

The variety of pig iron used for the manufacture of steel by Bessemer process, is

A

Bessemer pig

B

Grey pig

C

White forge pig

D

Mottled pig

Forge pig may be converted to wrought iron by

A

Rolling

B

Pudding

C

Shingling

D

Refining

The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

A

Cementation process

B

Crucible process

C

Bessemer process

D

Open hearth process

Limestone is added in the blast furnace (during pig iron manufacture) to

A

Form slag by combining with impurities

B

Supply heat by undergoing exothermic reaction with impurities

C

Reduce the coke consumption

D

Reduce slag viscosity

Wrought iron is used for

A

Structural works in beams

B

Small sized water pipes

C

Columns and struts

D

None to these

Which is the false statement about wrought iron? It has

A

High resistance to rusting and corrosion

B

High ductility

C

Ability of hold protective coating

D

Uniform strength in all directions

Wrought iron is

A

Hard

B

High in strength

C

Highly resistant to corrosion

D

Heat treated to change its properties

The tensile strength of wrought iron is maximum

A

Along the lines of slag distribution

B

Perpendicular to lines of slag distribution

C

Uniform in all directions

D

None of the above

Wrought iron

A

Is a ductile material

B

Can be easily forged or welded

C

Cannot stand sudden and excessive shocks

D

All of these

The variety of pig iron used for manufacture of wrought iron, is

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