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Engineering Materials

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

2.1180555555556
0.47916666666667
2.5277777777778
40 : 60

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Engineering Materials
Silicon when added to copper improves

Strength and ductility
Hardness
Machinability
Hardness and strength

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Creep
Hot tempering
Hot hardness
Fatigue

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Engineering Materials
Blast furnace is used to produce

Pig iron
Steel
Wrought iron
Cast iron

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Engineering Materials
The purpose of heat treatment is to

Relieve the stresses set up in the material after hot or cold working
Any one of these
Change grain size
Modify the structure of the material

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Engineering Materials
Neutral solution is one which has pH value

pH value has nothing to do with neutral solution
Less than 7
Greater than 7
Equal to 7

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