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Engineering Materials

Engineering Materials
The presence of sulphur in pig iron makes

It hard
It easily machinable
It brittle
The casting unsound

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Engineering Materials
Muntz metal contains copper and zinc in the ratio of

2.1180555555556
40 : 60
0.88888888888889
2.5277777777778

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Engineering Materials
Blast furnace produces following by reduction of iron ore

Malleable iron
Cast iron
Pig iron
Wrought iron

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Engineering Materials
Closed packed hexagonal space lattice is found in

Gamma-iron, aluminium, copper, lead, silver and nickel
Zinc, magnesium, cobalt, cadmium, antimony and bismuth
Alpha-iron, tungsten, chromium and molybdenum
None of these

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Engineering Materials
Blast furnace is used to produce

Steel
Pig iron
Cast iron
Wrought iron

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Engineering Materials
Tungsten when added to steel __________ the critical temperature.

None of these
Raises
Lowers
Does not effect

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