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Polymer Technology

Polymer Technology
Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.

Neoprene
Silicone
Butyl
Nitrile

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Polymer Technology
Styrene butadiene rubber (SBR) is never used for making

Soles of shoes
Coated fabrics
Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
Gaskets

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Polymer Technology
Cation exchange resins used in water treatment is made from __________ resin.

Urea formaldehyde
Amino
Epoxy
Phenolic

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Polymer Technology
Scouring is a finishing operation during the manufacture of fibre, which aims at __________ of fibres.

Improving the stretchability
Detergent solution washing
Glycol soaking
Dyeing/colouring

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Polymer Technology
Addition polymerisation is not involved in the manufacture of

Low density polythene
Polyhexamethylene adipamide
Polystyrene
Poly vinyl chloride

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Polymer Technology
Vulcanisation of raw rubber makes it

Less elastic
Soft
Tacky
Plastic

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