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Polymer Technology

Polymer Technology
Rayon is a __________ fibre.

Cellulosic
Natural
Polyamide
Polyester

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Polymer Technology
Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are

5°C and 1 kgf/cm²
0°C and 1 kgf/cm²
- 20°C and 1 kgf/cm²
0°C and 3 kgf/cm²

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Polymer Technology
A copolymer is formed by the combination of two or more monomer molecules

With the elimination of small amount of water
Of the same monomer by elimination of small molecules of water
None of these
In a chain without the elimination of water

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Polymer Technology
Polyurathane can not be used to make

Coating and adhesive
Fibre reinforced plastic (FRP)
Thermal insulation in refrigerator
Automobile cushion

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Polymer Technology
Maximum consumption of polymers is in

Coating and films
Packaging
Electrical insulation
Toys making

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Polymer Technology
Cellulose content in bomboo fibre is about __________ percent.

50
20
10
85

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