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Polymer Technology

Polymer Technology
__________ is a homopolymer.

Terylene
Bakelite
Neoprene
Nylon-66

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Polymer Technology
Branched chair polymers as compared to linear polymers have

Lower density
None of these
Higher melting point
Higher tensile strength

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Polymer Technology
Softening point of high density polythene is about __________ °C.

205
85
135
165

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Polymer Technology
Collapsible tubes for tooth paste are produced by __________ extrusion.

Direct
Indirect
Impact
None of these

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Polymer Technology
Hot drink (e.g, tea) cups are usually made of

Polypropylene
Polythene
PVC
Polystyrene

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

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

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