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Polymer Technology

Polymer Technology
__________ polythene is most prone to stress-cracking

Cross-linked
Low density
High density
Linear low density

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Polymer Technology
Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces

PVC
Dacron
Nylon-6
Polyester

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Polymer Technology
Plasticisers are added to synthetic plastics to

All of these
Improve workability during fabrication
Impart flexibility
Develop new improved properties not present in the original resin

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Polymer Technology
Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?

Rosin
Pine oil
Carbon black
Phosphorous

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Polymer Technology
β - glucose is the monomer of

Starch
Cellulose
None of these
Protein

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Polymer Technology
Starting material for the production of SBR is

Ethyl alcohol
Ethylene
Neither A nor B
Both A & B

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