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Polymer Technology

Polymer Technology
The monomer of natural rubber is

2 methyl-1-propene
Both B and C
Isoprene
DMT

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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
Polycaprolactum is

Nylon-6
Rayon
Dacron
Nylon-66

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

Polyamide
Saturated polyesters
Unsaturated polyesters
Polyacrylonitrile

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Polymer Technology
Polyurathane can not be used for making

Bottles
Mattresses & foam
Adhesives
Coating material

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

50°C and 1 kgf/cm²
250°C and 1 kgf/cm²
250°C and 10 kgf/cm²
50°C and 3 - 4 kg/cm²

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