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Polymer Technology

Polymer Technology
Linear polymers are normally

Having extremely high softening point
Elastometric
Thermosplastic
Thermosetting

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Polymer Technology
__________ is normally used for the manufacture of refrigerator components and transistor parts.

Polyproylene
Polyester
Polyurathene
Polystyrene

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Polymer Technology
Nylon 6 as compared to nylon 6, 6 has lower

Adhesion to rubber
Abrasion resistance
Hardness
Thermal stability

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Polymer Technology
Flexible plastic pipes are made of

Unsaturated polyester
Low density polyethylene (LDPE)
Polypropylene
High density polyethylene (HDPE)

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

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

Addition polymerisation
Chain polymerisation
None of these
Copolymerisation

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