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Polymer Technology

Polymer Technology
Density of low density polythene is about __________ gm/c.c.

0.38
0.56
0.81
0.91

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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
The process involved in converting rubber into a thin sheet or coating it on fabric is called

Calendering
Extrusion
Mastication
Vulcanisation

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Polymer Technology
Ion exchange resins are made of

Polystyrene
Sulphonated bakelite
Lucite
Teflon

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Polymer Technology
Which of the following is a natural polyamide fibre.

Cotton
None of these
Wool
Silk

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Polymer Technology
Which of the following is generally not drawn into fibre?

Polyamide
Unsaturated polyesters
Saturated polyesters
Polyacrylonitrile

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