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Polymer Technology

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

Indirect
Impact
Direct
None of these

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Polymer Technology
Rain coats are made of

PVC
SBR
Polyurathane
Neoprene

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Polymer Technology
Molecular weights of plastics ranges from

20000 to 25000
5000 to 1000
10⁹ to l0¹¹
1000 to 5000

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Polymer Technology
Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces

PVC
Polyester
Dacron
Nylon-6

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

85
205
135
165

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Polymer Technology
__________ is an addition polymer

Nylon
None of these
Bakelite
Polythene

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