Related Questions

Sulphur in pig iron tends to make it
A Hard
B Soft
C Ductile
D Tough
The presence of sulphur in pig iron makes
A It easily machinable
B It brittle
C It hard
D The casting unsound
Pig iron made from haematite ores free from sulphur, phosphorus and copper, is known as
A Bessemer pig
B Grey or foundry pig
C White or forge pig
D Mottled pig
Very high sulphur in pig iron makes
A Its casting unsound
B Its hard and machinable
C Its brittle and malleable
D All of the above
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 manufacture of wrought iron, is
A Bessemer pig
B Grey or foundry pig
C White forge pig
D Mottled pig
__________ iron is produced, when molten pig iron is allowed to cool gradually.
A White cast
B Grey cast
C Wrought
D None of these
__________ iron is produced, when molten pig iron is chilled suddenly.
A White cast
B Grey cast
C Wrought
D None of these
The fuel mostly used in blast furnace for extracting pig iron from iron ores is
A Hard coke
B Soft coke
C Pulverized coal
D Bituminous coal
Pig iron is produced by blast furnaces in India using mostly the iron ore named
A Hematite
B Magnetite
C Siderite
D Chalcopyrite

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