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Polymer Technology

Polymer Technology
__________ is a copolymer.

Nylon-66
Polyrophylene
Poly tetra flouro ethylene
PVC

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Polymer Technology
A copolymer is formed by the combination of two or more monomer molecules

In a chain without the elimination of water
Of the same monomer by elimination of small molecules of water
None of these
With the elimination of small amount of water

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Polymer Technology
Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation?

Bakelite
PTFE
PVC
Epoxy resin

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Polymer Technology
Which of the following low molecular weight (

Polyvinyl acetate
Cellulose acetate
PVC
Thiokol

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Polymer Technology
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.

Polyvinyl acetate
PVC
Polythene
Rayon

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Polymer Technology
__________ polythene is most prone to stress-cracking

High density
Cross-linked
Linear low density
Low density

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