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Engineering Materials

Engineering Materials
Aluminium bronze contains aluminium and copper in the ratio of

2.5277777777778
40 : 60
0.47916666666667
2.1180555555556

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Engineering Materials
If a refractory contains high content of silicon, it means refractory is

Acidic
Basic
Brittle
Neutral

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Engineering Materials
Which of the following material has nearly zero coefficient of expansion?

Heat resisting steel
Invar
High speed steel
Stainless steel

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Engineering Materials
Bell metal contains

85 - 92% copper and rest tin with little lead and nickel
70% copper and 30% zinc
70 - 75% copper and rest tin
90% copper and 10% tin

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Engineering Materials
The cupola is used to manufacture

Pig iron
Wrought iron
Cast iron
Steel

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Engineering Materials
The percentage carbon content in wrought iron is about

0.4
0.02
2
0.1

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