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Engineering Materials

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

0.47916666666667
2.1180555555556
2.5277777777778
40 : 60

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Engineering Materials
White cast iron has

All of these
Carbon in the form of carbide
High compressive strength
Low tensile strength

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Engineering Materials
Which of the following has a fine gold colour and is used for imitation jewellery?

Babbitt metal
Aluminium bronze
Gun metal
Silicon bronze

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Engineering Materials
Sulphur in cast iron

Makes the iron soft and easily machinable
Make the iron white and hard
Increases hardness and brittleness
Aids fusibility and fluidity

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Engineering Materials
Gun metal contains

70% copper and 30% zinc
85 - 92% copper and rest tin with little lead and nickel
70 - 78% copper and rest tin
90% copper and 10% tin

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Engineering Materials
The material in which the atoms are arranged regularly in some directions but not in others, is called

Mesomorphous material
Crystalline material
None of these
Amorphous material

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