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Fibre Characterization and Properties - Textile Fibres - Engineering Sciences Previous Year Questions
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| Paper name | Year | Attempt | |
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Engineering Sciences (XE) 20112011 | 2011 |
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All Fibre Characterization and Properties previous year questions
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2011 · Engineering Sciences · Textile Fibres · Fibre Characterization and Properties
Engineering Sciences (XE) 2011
When a fiber is made of PET, it has crystalline as well as amorphous phases and experiments have revealed that the average density of the overall material is 1.375 g/cm3. It is known that the density of the crystalline phase is 1.455 g/cm3 and that of amorphous phase is 1.335 g/cm3. The mass fraction crystallinity (X) in % is given by