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Polymer Technology

Polymer Technology
Which of the following is not a natural polymer?

Nucleic acids e.g. RNA and DNA
Polyurethane
Polysaccharides
Polyisoprene

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Polymer Technology
Nylon-6 as compared to nylon-66 is

Harder
More abrasion resistant
Having higher melting point
None of these

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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.

Polyester
Polypropylene
Nylon
Polyacrylonitrile

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Polymer Technology
Vinyl flooring is done using __________ sheets.

Polypropylene
Polythene
PVC
Polyvinyl acetate

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Polymer Technology
Rain coats are made of

PVC
Polyurathane
SBR
Neoprene

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Polymer Technology
__________ tubes are good substitude for human blood vessels onrheart by-pass operation.

Polystyrene
PVC
Polythene
Teflon/dacron

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