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Polymer Technology

Polymer Technology
Linear polymers are normally

Thermosplastic
Having extremely high softening point
Thermosetting
Elastometric

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Polymer Technology
Most commonly used rubber vulcanisation agent is

Alumina
Bromine
Sulphur
Platinum

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Polymer Technology
Size range of polymer molecules varies from __________ metre.

10⁻² to 10⁻⁵
10⁻⁸ to 10⁻¹⁰
10⁻⁴ to 10⁻⁷
10⁻¹ to 10⁻²

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Polymer Technology
Polymerisation process in which two or more monomers of chemically different nature take part is called

None of these
Chain polymerisation
Copolymerisation
Addition polymerisation

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Polymer Technology
Properties of a polymer is affected by the

All of these
Chain length
Intermolecular forces
Branching & cross-linking

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Polymer Technology
Which of the following is not an elastomer?

Nitrile-butadiene
Polyisoprene
None of these
Neoprene

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