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Polymer Technology

Polymer Technology
The process involved in converting rubber into a thin sheet or coating it on fabric is called

Calendering
Vulcanisation
Extrusion
Mastication

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Polymer Technology
Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber?

Thiokol
Alkylated diphenyl amine
Carbon
Magnesium

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Polymer Technology
Polypropylene compared to polythene is

Stronger
Lighter
All of these
Harder

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Polymer Technology
The monomer for the production of neoprene rubber is

Acetylene
None of these
Isoprene
Chloroprene

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Polymer Technology
Addition polymerisation is not involved in the manufacture of

Low density polythene
Poly vinyl chloride
Polystyrene
Polyhexamethylene adipamide

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

Polysaccharides
Nucleic acids e.g. RNA and DNA
Polyisoprene
Polyurethane

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