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Polymer Technology

Polymer Technology
Temperature maintained in the emulsion polymerisation reactor for PVC manufacture is about __________ ° C.

50
500
250
-20

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Polymer Technology
Visco-elastic behaviour exhibited by plastics is a __________ like behaviour.

Solid
Neither solid nor liquid
Liquid
Combination of solid & liquid

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Polymer Technology
__________ is an addition polymer

None of these
Nylon
Polythene
Bakelite

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Polymer Technology
__________ moulding is used for shaping of thermosetting plastics exclusively.

Injection
Compression
Transfer
Extrusion

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Polymer Technology
Polypropylene is preferred to polythene, because the former is

Both B & C
Harder
Stronger
Non-inflammable

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Polymer Technology
The main use of butadiene is

As a plasticiser for unsaturated polyester
As an anti-skimming agent in paint
In the manufacture of synthetic rubber
None of these

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