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Polymer Technology

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

None of these
Direct
Indirect
Impact

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

-20
500
50
250

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Polymer Technology
__________ is not a condensation polymer.

Teflon
Polystyrene
Dacron
Nylon-66

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Polymer Technology
Polycaprolactum is

Nylon-6
Dacron
Nylon-66
Rayon

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Polymer Technology
SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at

1:2
3:1
2:1
1:3

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Polymer Technology
Which of the following is not a condensation polymer?

Bakelite
Melamine polymer
Polymethylmethacrylate (PMMA)
None of these

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