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Polymer Technology

Polymer Technology
Vinyl flooring is done using __________ sheets.

Polythene
PVC
Polypropylene
Polyvinyl acetate

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Polymer Technology
Cellulose is the main contituent of most __________ fibres.

Synthetic
Spandex
Natural
Acrylic

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Polymer Technology
Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.

Polysulphone
Polyurathane
Polyester
Polycarbonate

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Polymer Technology
Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.

2000-2500
1500-2000
1-1000
1000-1500

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Polymer Technology
Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.

Polypropylene
Polyester
Nylon
Polyacrylonitrile

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Polymer Technology
In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the __________ fibres.

Polyvinyl acetate
Viscose rayon
Acrylic
Saturated polyester

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